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					<guid>https://www.chemieaufgaben.ch/forums/topic/structurepredictions-exercise1/#post-9687</guid>
					<title><![CDATA[Reply To: <div class="text_topic_1">Structure Predictions, exercise 1  (oc-50)</div>  Given are the following: Results One of them elemental analysis: C 12.79%. H 2.15%, The Remains be Bromine <ol class="special-ols" padding-left: 0; > <li> How is The molecular formula</li> <li> Drawing This molecule by: The molecular formula. What ? falling on?</li> <li> How See ? This to Expected NMR The (Both!) Structures from?</li> </ol><hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/structurepredictions-exercise1/#post-9687</link>
					<pubDate>Thu, 01 Oct 2026 10:15:28 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						<p> <img decoding="async" src="https://www.chemieaufgaben.ch/pics/text.png" style="width: 1rem;"/><strong> Lösung: </strong>  </p>
<div id="print-antwort-inhalt">
<p class="p-antwort">Notes to The Percentage data: in this case Acting It &#8216;s The Commission Always to Percentage by weight. With this The Accounting simpler will be, Going We are of 100 Grams Substance from <span class="CharChemConfig auto-compile"></span> </p>
<ol class="special-ols3" padding-left: 0;>
<li> Adopted 100 Grams, This means that 12.79 g C, 2.15 g H and 85.07 g Bromine</li>
<li> n(C) = 12.79/12 = 1.07 mol &asymp; 1 mol</li>
<li> n(H) = 2.15/1 = 2.15 mol &asymp; 2 mol</li>
<li> n(Br) = 85.07/79.9 = 1.07 mol &asymp; 1 mol</li>
<li>
<div class="echem-formula"> {So what do you mean? } CH2Br { It&#8217;s not The Commission But not drawing, octet rule} </div>
</li>
<li>
<div class="echem-formula"> {This means that} (CH2Br)2 {Responsibility.} C2H4Br2 </div>
</li>
<li> Drawing is given It &#8216;s two MOther articles and articles, The Bromine atoms on the equal to C or for each Carbon atom The Commission a Manufacture from materials of any heading</li>
<li>
<div class="echem-formula"> Br\/\Br { } /<`|Br>\Br </div>
</li>
</ol>
</p></div>
						]]>
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				<item>
					<guid>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions3/#post-9685</guid>
					<title><![CDATA[Reply To: <div class="text_topic_1">Functional Groups with each other reacting to leave, Condensation reactions 3  (oc-42)</div>  Es are the following: Products of condensation reaction given. Drawing The Scalpeline formulas The This is the case for Educated by analogy to the the first Example. Please note:, that The Notation with a Retrosynthesis arrow made has been. Go on . by analogy before. <span class="CharChemConfig auto-compile"></span> <div class="tabelle-wrapper"> <table class="auto-breite-tabelle"> <tr> <td> <div class="echem-formula"> {a1) } /\/O\/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> &rArr; </td> <td> <div class="echem-formula"> /\/OH + HO\/\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a2) } \<|>/\O/\<|>/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {a3) } \/<`|>\/O\/<`|>\/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {a4) } /<`|>\/<`|O/<`|/<`|>\>\/>\/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {a5) } $C()/<_(A225)><_(A-45)>\O/<_(A225)><_(A-45)>\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {a6) } \<|>/<`|>\O/<`|>\<|>/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {b1) } /\O/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {b2) } /<`|>\O/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {b3) } \<|>/<`|>\O/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {c1) } \/\O/<`|O|>\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {c2) } \<|>/<`|>\O/<`|O|>\<|>/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {c3) } /\<|O`|>/O\/<`|>\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {c4) } -_qO_q<`|O|>_q_q </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {d1) } /<`|O|>\O/<`|O|>\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {d2) } `|O|\O/`|O| </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {d3) } `/`\`|/\|\/`|O|\O/`|O|\/`|/\|`/`\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {e1) } \/`|O|\O/`|O| </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {e2) } \/`|O|\O/`|O|\<|>/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {e3) } /`|O|\O/`|O|\<|>/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {f1) } /N<_(y-.5)H>\|O`|/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {f2) } \<|>/N<_(y-.5)H>\|O`|/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {f3) } \<|>/N<`|>\|O`|/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {f4) } -_qNH_q<`|O|>_q_q </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> </table> </div> <hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions3/#post-9685</link>
					<pubDate>Thu, 01 Oct 2026 10:15:27 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						<p> <img decoding="async" src="https://www.chemieaufgaben.ch/pics/text.png" style="width: 1rem;"/><strong> Lösung: </strong>  </p>
<div id="print-antwort-inhalt">
<p class="p-antwort"><span class="CharChemConfig auto-compile"></span> </p>
<div class="tabelle-wrapper">
<table class="auto-breite-tabelle">
<tr>
<td>
<div class="echem-formula"> {a1) } /\/O\/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } /\/OH + HO\/\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a2) } \<|>/\O/\<|>/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } \<|>/\OH + HO/\<|>/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a3) } \/<`|>\/O\/<`|>\/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } \/<`|>\/OH + HO\/<`|>\/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a4) } /<`|>\/<`|O/<`|/<`|>\>\/>\/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } /<`|>\/<`|OH>\/ + /<`|>\/<`|OH>\/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a5) } $C()/<_(A225)><_(A-45)>\O/<_(A225)><_(A-45)>\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } OH|_(A75);/#2\ + |_(A75);HO/#2\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a6) } \<|>/<`|>\O/<`|>\<|>/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } 2* \<|>/<`|OH>\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b1) } /\O/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } /\OH + HO/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b2) } /<`|>\O/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } /<`|OH>\ + /\OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b3) } \<|>/<`|>\O/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } \<|>/<`|OH>\ + /\OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c1) } \/\O/<`|O|>\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } \/\OH + HO/<`|O|>\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c2) } \<|>/<`|>\O/<`|O|>\<|>/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } \<|>/<`|OH>\ + HO/<`|O|>\<|>/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c3) } /\<|O`|>/O\/<`|>\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } /\<|O`|>/OH + \<|>/<`|OH> </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c4) } -_qO_q<`|O|>_q_q </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } <\OH><`|O|>`/|\|OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d1) } /<`|O|>\O/<`|O|>\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } /<`|O|>\OH + HO/<`|O|>\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d2) } `|O|\O/`|O| </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } 2* $C()|O`|/OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d3) } `/`\`|/\|\/`|O|\O/`|O|\/`|/\|`/`\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } 2* `/`\`|/\|\/`|O|\OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e1) } \/`|O|\O/`|O| </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } /\<|O`|>/OH + HO/`|O| </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e2) } \/`|O|\O/`|O|\<|>/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } HO\|O`|/<`|>\/ + \/`|O|\OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e3) } /`|O|\O/`|O|\<|>/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } HO\|O`|/<`|>\ + /`|O|\OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f1) } /N<_(y-.5)H>\|O`|/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } /NH2 + HO/`|O|\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f2) } \<|>/N<_(y-.5)H>\|O`|/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } \<|>/NH2 + /\|O`|/OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f3) } \<|>/N<`|>\|O`|/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } \<|>/N<_(y-.5)H>\ + /\|O`|/OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f4) } -_qNH_q<`|O|>_q_q </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> { } <\OH><`|O|>`/|\|NH2 </div>
</td>
</tr>
</table></div>
</p></div>
						]]>
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				<item>
					<guid>https://www.chemieaufgaben.ch/forums/topic/structurepredictions-exercise1/#post-9686</guid>
					<title><![CDATA[<div class="text_topic_1">Structure Predictions, exercise 1  (oc-50)</div>  Given are the following: Results One of them elemental analysis: C 12.79%. H 2.15%, The Remains be Bromine <ol class="special-ols" padding-left: 0; > <li> How is The molecular formula</li> <li> Drawing This molecule by: The molecular formula. What ? falling on?</li> <li> How See ? This to Expected NMR The (Both!) Structures from?</li> </ol><hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/structurepredictions-exercise1/#post-9686</link>
					<pubDate>Thu, 01 Oct 2026 10:15:27 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						
<div id="print-frage_header">
<div class="div-frage">
<div id="top-frage-eins"><span class="top-frage">  <strong>&nbsp; Aufgabe: oc-50 </strong> &nbsp; &nbsp; </span></div>
<p> <a class="a-info" title="Difficulty: **/***  by user: rs Keywords: OC, EA, NMR , exercise, exercises, Lthe island, LManufacture in which all the materials used are:, chemistry, exercise, exercises, chemistry exercise, chemistry exercises , Exercise code: oc-50" rel="nofollow">&#9432;</a><a href="#" title="reload page without cache" onclick="reloadNoCache(); return false;" rel="nofollow">&nbsp; &nbsp; &#128260; Reload </a>&nbsp;   &nbsp;   <a class="bbp-topic-permalink" href="" title="click to print" onclick="printme('Organic Chemistry','oc-50')" rel="nofollow">&#128424;&#65039; print </a><span class="top-prev-next"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a title="previous question" href="https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions3">&#9664;</a>&nbsp; &#8211; &nbsp; <a title="next question" href="https://www.chemieaufgaben.ch/forums/topic/_siehe_auch_001">&#9654;</a> </span> &nbsp;  &nbsp;  <a class="display_only_in_search" href="https://www.chemieaufgaben.ch/forums/topic/structurepredictions-exercise1"> ?! Question/Answer ?! </a>   </div>
</p></div>
<div id="print-frage-inhalt">
<p class="p-frage">Given are the following: Results One of them elemental analysis: C 12.79%. H 2.15%, The Remains be Bromine </p>
<ol class="special-ols" padding-left: 0;>
<li> How is The molecular formula</li>
<li> Drawing This molecule by: The molecular formula. What ? falling on?</li>
<li> How See ? This to Expected NMR The (Both!) Structures from?</li>
</ol>
<hr class="hr-dotted"/>
</div>
						]]>
					</description>

					
					
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				<item>
					<guid>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions2/#post-9683</guid>
					<title><![CDATA[Reply To: <div class="text_topic_1">Functional Groups with each other reacting to leave, Condensation reactions 2  (oc-41)</div>  Go on . In the case of each exercise The following masses before: <br> &#8211; Drawing The requested(n) molecules with The Functional Groups <br> &#8211; Let it go. The Both drawn molecules with each other reacting <br> &#8211; In addition to the Product Water is generated One new functional Group. What ?? <br> &#8211; Each of them Partial task It should be at least: three times solved will be <br> Notes: The molecules to be Neutral be <ol class="special-ols" padding-left: 0; > <li> Two identical Alcohol reacting with each other</li> <li> Two Different Alcohol reacting with each other</li> <li> One of them Alcohol reacts with One of them carboxylic acid</li> <li> Two identical Carbonic acids reacting with each other</li> <li> Two Different Carbonic acids reacting with each other</li> <li> One of them Amina reacting with One of them carboxylic acid</li> </ol><hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions2/#post-9683</link>
					<pubDate>Thu, 01 Oct 2026 10:15:26 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						<p> <img decoding="async" src="https://www.chemieaufgaben.ch/pics/text.png" style="width: 1rem;"/><strong> Lösung: </strong>  </p>
<div id="print-antwort-inhalt">
<p class="p-antwort"><span class="CharChemConfig auto-compile"></span> </p>
<div class="tabelle-wrapper">
<table class="auto-breite-tabelle">
<tr>
<td> <strong> </p>
<div class="echem-formula"> {a) Two equal to Alcohol} </div>
<p> </strong> </td>
<td> </td>
<td><strong></p>
<div class="echem-formula"> {ether} </div>
<p> </strong> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a1) } /\/OH + /\/OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> /\/O\/\ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a2) } \<|>/\OH + \<|>/\OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \<|>/\O/\<|>/ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a3) } \/<`|>\/OH + HO\/<`|>\/ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \/<`|>\/O\/<`|>\/ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a4) } /<`|>\/<`|OH>\/ + /<`|>\/<`|OH>\/ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> /<`|>\/<`|O/<`|/<`|>\>\/>\/ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a5) } OH|_(A75);/#2\ + |_(A75);HO/#2\ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> $C()/<_(A225)><_(A-45)>\O/<_(A225)><_(A-45)>\ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a6) } 2* \<|>/<`|OH>\ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \<|>/<`|>\O/<`|>\<|>/ + H2O </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {b) Two various Alcohol} </div>
<p> </strong> </td>
<td> </td>
<td><strong></p>
<div class="echem-formula"> {ether} </div>
<p> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b1) } /\OH + HO/ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> /\O/ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b2) } /<`|OH>\ + /\OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> /<`|>\O/\ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b3) } \<|>/<`|OH>\ + /\OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \<|>/<`|>\O/\ + H2O </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {c) Alcohol + carboxylic acid} </div>
<p> </strong> </td>
<td> </td>
<td><strong></p>
<div class="echem-formula"> {ester} </div>
<p> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c1) } \/\OH + HO/<`|O|>\ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \/\O/<`|O|>\ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c2) } \<|>/<`|OH>\ + HO/<`|O|>\<|>/ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \<|>/<`|>\O/<`|O|>\<|>/ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c3) } /\<|O`|>/OH + \<|>/<`|OH> </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> /\<|O`|>/O\/<`|>\ + H2O </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {d) Two equal to Carbonic acids} </div>
<p> </strong> </td>
<td> </td>
<td><strong></p>
<div class="echem-formula"> {carboxylic acid anhydride} </div>
<p> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d1) } /<`|O|>\OH + HO/<`|O|>\ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> /<`|O|>\O/<`|O|>\ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d2) } 2* $C()|O`|/OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> `|O|\O/`|O| + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d3) } 2* `/`\`|/\|\/`|O|\OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> `/`\`|/\|\/`|O|\O/`|O|\/`|/\|`/`\ + H2O </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {e) Two various Carbonic acids} </div>
<p> </strong> </td>
<td> </td>
<td><strong></p>
<div class="echem-formula"> {carboxylic acid anhydride} </div>
<p> </strong> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e1) } /\<|O`|>/OH + HO/`|O| </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \/`|O|\O/`|O| + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e2) }HO\|O`|/<`|>\/ + \/`|O|\OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \/`|O|\O/`|O|\<|>/\ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e3) } HO\|O`|/<`|>\ + /`|O|\OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> /`|O|\O/`|O|\<|>/ + H2O </div>
</td>
</tr>
<tr>
<td> <strong></p>
<div class="echem-formula"> {f) Amina + carboxylic acid:} </div>
<p> </strong> </td>
<td> </td>
<td><strong></p>
<div class="echem-formula"> {amide} </div>
<p> </strong> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f1) } /NH2 + HO/`|O|\ </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> /N<_(y-.5)H>\|O`|/ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f2) } \<|>/NH2 + /\|O`|/OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \<|>/N<_(y-.5)H>\|O`|/\ + H2O </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f3) } \<|>/N<_(y-.5)H>\ + /\|O`|/OH </div>
</td>
<td>
<div class="echem-formula"> -> </div>
</td>
<td>
<div class="echem-formula"> \<|>/N<`|>\|O`|/\ + H2O </div>
</td>
</tr>
</table></div>
</p></div>
						]]>
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				</item>

			
				<item>
					<guid>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions3/#post-9684</guid>
					<title><![CDATA[<div class="text_topic_1">Functional Groups with each other reacting to leave, Condensation reactions 3  (oc-42)</div>  Es are the following: Products of condensation reaction given. Drawing The Scalpeline formulas The This is the case for Educated by analogy to the the first Example. Please note:, that The Notation with a Retrosynthesis arrow made has been. Go on . by analogy before. <span class="CharChemConfig auto-compile"></span> <div class="tabelle-wrapper"> <table class="auto-breite-tabelle"> <tr> <td> <div class="echem-formula"> {a1) } /\/O\/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> &rArr; </td> <td> <div class="echem-formula"> /\/OH + HO\/\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a2) } \<|>/\O/\<|>/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {a3) } \/<`|>\/O\/<`|>\/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {a4) } /<`|>\/<`|O/<`|/<`|>\>\/>\/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {a5) } $C()/<_(A225)><_(A-45)>\O/<_(A225)><_(A-45)>\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {a6) } \<|>/<`|>\O/<`|>\<|>/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {b1) } /\O/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {b2) } /<`|>\O/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {b3) } \<|>/<`|>\O/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {c1) } \/\O/<`|O|>\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {c2) } \<|>/<`|>\O/<`|O|>\<|>/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {c3) } /\<|O`|>/O\/<`|>\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {c4) } -_qO_q<`|O|>_q_q </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {d1) } /<`|O|>\O/<`|O|>\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {d2) } `|O|\O/`|O| </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {d3) } `/`\`|/\|\/`|O|\O/`|O|\/`|/\|`/`\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {e1) } \/`|O|\O/`|O| </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {e2) } \/`|O|\O/`|O|\<|>/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {e3) } /`|O|\O/`|O|\<|>/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {f1) } /N<_(y-.5)H>\|O`|/ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {f2) } \<|>/N<_(y-.5)H>\|O`|/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {f3) } \<|>/N<`|>\|O`|/\ </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> <tr> <td> <div class="echem-formula"> {f4) } -_qNH_q<`|O|>_q_q </div> </td> <td> + </td> <td> <div class="echem-formula"> H2O </div> </td> <td> </td> <td> </td> </tr> </table> </div> <hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions3/#post-9684</link>
					<pubDate>Thu, 01 Oct 2026 10:15:26 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						
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<div id="top-frage-eins"><span class="top-frage">  <strong>&nbsp; Aufgabe: oc-42 </strong> &nbsp; &nbsp; </span></div>
<p> <a class="a-info" title="Difficulty: */***  by user: rs Keywords: OC, functional Groups with each other reacting to leave, Various Condensation reactions, exercise, exercises, Lthe island, LManufacture in which all the materials used are:, chemistry, exercise, exercises, chemistry exercise, chemistry exercises , Exercise code: oc-42" rel="nofollow">&#9432;</a><a href="#" title="reload page without cache" onclick="reloadNoCache(); return false;" rel="nofollow">&nbsp; &nbsp; &#128260; Reload </a>&nbsp;   &nbsp;   <a class="bbp-topic-permalink" href="" title="click to print" onclick="printme('Organic Chemistry','oc-42')" rel="nofollow">&#128424;&#65039; print </a><span class="top-prev-next"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a title="previous question" href="https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions2">&#9664;</a>&nbsp; &#8211; &nbsp; <a title="next question" href="https://www.chemieaufgaben.ch/forums/topic/structurepredictions-exercise1">&#9654;</a> </span> &nbsp;  &nbsp;  <a class="display_only_in_search" href="https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions3"> ?! Question/Answer ?! </a>   </div>
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<p class="p-frage">Es are the following: Products of condensation reaction given. Drawing The Scalpeline formulas The This is the case for Educated by analogy to the the first Example. Please note:, that The Notation with a Retrosynthesis arrow made has been. Go on . by analogy before. <span class="CharChemConfig auto-compile"></span> </p>
<div class="tabelle-wrapper">
<table class="auto-breite-tabelle">
<tr>
<td>
<div class="echem-formula"> {a1) } /\/O\/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /\/OH + HO\/\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a2) } \<|>/\O/\<|>/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a3) } \/<`|>\/O\/<`|>\/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a4) } /<`|>\/<`|O/<`|/<`|>\>\/>\/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a5) } $C()/<_(A225)><_(A-45)>\O/<_(A225)><_(A-45)>\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a6) } \<|>/<`|>\O/<`|>\<|>/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b1) } /\O/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b2) } /<`|>\O/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b3) } \<|>/<`|>\O/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c1) } \/\O/<`|O|>\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c2) } \<|>/<`|>\O/<`|O|>\<|>/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c3) } /\<|O`|>/O\/<`|>\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c4) } -_qO_q<`|O|>_q_q </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d1) } /<`|O|>\O/<`|O|>\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d2) } `|O|\O/`|O| </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d3) } `/`\`|/\|\/`|O|\O/`|O|\/`|/\|`/`\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e1) } \/`|O|\O/`|O| </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e2) } \/`|O|\O/`|O|\<|>/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e3) } /`|O|\O/`|O|\<|>/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f1) } /N<_(y-.5)H>\|O`|/ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f2) } \<|>/N<_(y-.5)H>\|O`|/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f3) } \<|>/N<`|>\|O`|/\ </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f4) } -_qNH_q<`|O|>_q_q </div>
</td>
<td> + </td>
<td>
<div class="echem-formula"> H2O </div>
</td>
<td> </td>
<td> </td>
</tr>
</table></div>
<hr class="hr-dotted"/>
</div>
						]]>
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				<item>
					<guid>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions2/#post-9682</guid>
					<title><![CDATA[<div class="text_topic_1">Functional Groups with each other reacting to leave, Condensation reactions 2  (oc-41)</div>  Go on . In the case of each exercise The following masses before: <br> &#8211; Drawing The requested(n) molecules with The Functional Groups <br> &#8211; Let it go. The Both drawn molecules with each other reacting <br> &#8211; In addition to the Product Water is generated One new functional Group. What ?? <br> &#8211; Each of them Partial task It should be at least: three times solved will be <br> Notes: The molecules to be Neutral be <ol class="special-ols" padding-left: 0; > <li> Two identical Alcohol reacting with each other</li> <li> Two Different Alcohol reacting with each other</li> <li> One of them Alcohol reacts with One of them carboxylic acid</li> <li> Two identical Carbonic acids reacting with each other</li> <li> Two Different Carbonic acids reacting with each other</li> <li> One of them Amina reacting with One of them carboxylic acid</li> </ol><hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions2/#post-9682</link>
					<pubDate>Thu, 01 Oct 2026 10:15:25 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						
<div id="print-frage_header">
<div class="div-frage">
<div id="top-frage-eins"><span class="top-frage">  <strong>&nbsp; Aufgabe: oc-41 </strong> &nbsp; &nbsp; </span></div>
<p> <a class="a-info" title="Difficulty: */***  by user: rs Keywords: OC, functional Groups with each other reacting to leave, Various Condensation reactions, exercise, exercises, Lthe island, LManufacture in which all the materials used are:, chemistry, exercise, exercises, chemistry exercise, chemistry exercises , Exercise code: oc-41" rel="nofollow">&#9432;</a><a href="#" title="reload page without cache" onclick="reloadNoCache(); return false;" rel="nofollow">&nbsp; &nbsp; &#128260; Reload </a>&nbsp;   &nbsp;   <a class="bbp-topic-permalink" href="" title="click to print" onclick="printme('Organic Chemistry','oc-41')" rel="nofollow">&#128424;&#65039; print </a><span class="top-prev-next"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a title="previous question" href="https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions1">&#9664;</a>&nbsp; &#8211; &nbsp; <a title="next question" href="https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions3">&#9654;</a> </span> &nbsp;  &nbsp;  <a class="display_only_in_search" href="https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions2"> ?! Question/Answer ?! </a>   </div>
</p></div>
<div id="print-frage-inhalt">
<p class="p-frage">Go on . In the case of each exercise The following masses before: <br /> &#8211; Drawing The requested(n) molecules with The Functional Groups <br /> &#8211; Let it go. The Both drawn molecules with each other reacting <br /> &#8211; In addition to the Product Water is generated One new functional Group. What ?? <br /> &#8211; Each of them Partial task It should be at least: three times solved will be <br /> Notes: The molecules to be Neutral be </p>
<ol class="special-ols" padding-left: 0;>
<li> Two identical Alcohol reacting with each other</li>
<li> Two Different Alcohol reacting with each other</li>
<li> One of them Alcohol reacts with One of them carboxylic acid</li>
<li> Two identical Carbonic acids reacting with each other</li>
<li> Two Different Carbonic acids reacting with each other</li>
<li> One of them Amina reacting with One of them carboxylic acid</li>
</ol>
<hr class="hr-dotted"/>
</div>
						]]>
					</description>

					
					
				</item>

			
				<item>
					<guid>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions1/#post-9681</guid>
					<title><![CDATA[Reply To: <div class="text_topic_1">Functional Groups with each other reacting to leave, Condensation reactions 1  (oc-40)</div>  Given are the following: molecules. Let it go. These in One of them condensation reaction with each other reacting. <span class="CharChemConfig auto-compile"></span> <div class="tabelle-wrapper"> <table class="auto-breite-tabelle"> <tr> <td> <strong> <div class="echem-formula"> {a) Two equal to Alcohol } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {a1) } /\/OH + /\/OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a2) } \<|>/\OH + \<|>/\OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a3) } \/<`|>\/OH + HO\/<`|>\/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a4) } /<`|>\/<`|OH>\/ + /<`|>\/<`|OH>\/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a5) } OH|_(A75);/#2\ + |_(A75);HO/#2\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a6) } 2* \<|>/<`|OH>\ </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {b) Two various Alcohol } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {b1) } /\OH + HO/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {b2) } /<`|OH>\ + /\OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {b3) } \<|>/<`|OH>\ + /\OH </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {c) Alcohol and One carboxylic acid } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {c1) } \/\OH + HO/<`|O|>\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {c2) } \<|>/<`|OH>\ + HO/<`|O|>\<|>/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {c3) } /\<|O`|>/OH + \<|>/<`|OH> </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {d) Two equal to carboxylic acid } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {d1) } /<`|O|>\OH + HO/<`|O|>\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {d2) } 2* $C()|O`|/OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {d3) } 2* `/`\`|/\|\/`|O|\OH </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {e) Two various carboxylic acid } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {e1) } /\<|O`|>/OH + HO/`|O| </div> </td> </tr> <tr> <td> <div class="echem-formula"> {e2) } HO\|O`|/<`|>\/ + \/`|O|\OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {e3) } HO\|O`|/<`|>\ + /`|O|\OH </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {f) Amina and One carboxylic acid } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {f1) } /NH2 + HO/`|O|\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {f2) } \<|>/NH2 + /\|O`|/OH </div> </td></tr> <tr> <td> <div class="echem-formula"> {f3) } \<|>/N<_(y-.5)H>\ + /\|O`|/OH </div> </td> </tr> </table> </div> <hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions1/#post-9681</link>
					<pubDate>Thu, 01 Oct 2026 10:15:25 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						<p> <img decoding="async" src="https://www.chemieaufgaben.ch/pics/text.png" style="width: 1rem;"/><strong> Lösung: </strong>  </p>
<div id="print-antwort-inhalt">
<p class="p-antwort">LManufacture in which all the materials used are: Look at this. In the case of exercise oc-41 </p>
</p></div>
						]]>
					</description>

					
					
				</item>

			
				<item>
					<guid>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions1/#post-9680</guid>
					<title><![CDATA[<div class="text_topic_1">Functional Groups with each other reacting to leave, Condensation reactions 1  (oc-40)</div>  Given are the following: molecules. Let it go. These in One of them condensation reaction with each other reacting. <span class="CharChemConfig auto-compile"></span> <div class="tabelle-wrapper"> <table class="auto-breite-tabelle"> <tr> <td> <strong> <div class="echem-formula"> {a) Two equal to Alcohol } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {a1) } /\/OH + /\/OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a2) } \<|>/\OH + \<|>/\OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a3) } \/<`|>\/OH + HO\/<`|>\/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a4) } /<`|>\/<`|OH>\/ + /<`|>\/<`|OH>\/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a5) } OH|_(A75);/#2\ + |_(A75);HO/#2\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {a6) } 2* \<|>/<`|OH>\ </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {b) Two various Alcohol } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {b1) } /\OH + HO/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {b2) } /<`|OH>\ + /\OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {b3) } \<|>/<`|OH>\ + /\OH </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {c) Alcohol and One carboxylic acid } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {c1) } \/\OH + HO/<`|O|>\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {c2) } \<|>/<`|OH>\ + HO/<`|O|>\<|>/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {c3) } /\<|O`|>/OH + \<|>/<`|OH> </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {d) Two equal to carboxylic acid } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {d1) } /<`|O|>\OH + HO/<`|O|>\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {d2) } 2* $C()|O`|/OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {d3) } 2* `/`\`|/\|\/`|O|\OH </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {e) Two various carboxylic acid } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {e1) } /\<|O`|>/OH + HO/`|O| </div> </td> </tr> <tr> <td> <div class="echem-formula"> {e2) } HO\|O`|/<`|>\/ + \/`|O|\OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {e3) } HO\|O`|/<`|>\ + /`|O|\OH </div> </td> </tr> <tr> <td> <strong> <div class="echem-formula"> {f) Amina and One carboxylic acid } </div> <strong> </td> </tr> <tr> <td> <div class="echem-formula"> {f1) } /NH2 + HO/`|O|\ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {f2) } \<|>/NH2 + /\|O`|/OH </div> </td></tr> <tr> <td> <div class="echem-formula"> {f3) } \<|>/N<_(y-.5)H>\ + /\|O`|/OH </div> </td> </tr> </table> </div> <hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions1/#post-9680</link>
					<pubDate>Thu, 01 Oct 2026 10:15:24 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						
<div id="print-frage_header">
<div class="div-frage">
<div id="top-frage-eins"><span class="top-frage">  <strong>&nbsp; Aufgabe: oc-40 </strong> &nbsp; &nbsp; </span></div>
<p> <a class="a-info" title="Difficulty: */***  by user: rs Keywords: OC, functional Groups with each other reacting to leave, Various Condensation reactions, exercise, exercises, Lthe island, LManufacture in which all the materials used are:, chemistry, exercise, exercises, chemistry exercise, chemistry exercises , Exercise code: oc-40" rel="nofollow">&#9432;</a><a href="#" title="reload page without cache" onclick="reloadNoCache(); return false;" rel="nofollow">&nbsp; &nbsp; &#128260; Reload </a>&nbsp;   &nbsp;   <a class="bbp-topic-permalink" href="" title="click to print" onclick="printme('Organic Chemistry','oc-40')" rel="nofollow">&#128424;&#65039; print </a><span class="top-prev-next"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <a title="previous question" href="https://www.chemieaufgaben.ch/forums/topic/retrosynthesis-reduction">&#9664;</a>&nbsp; &#8211; &nbsp; <a title="next question" href="https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions2">&#9654;</a> </span> &nbsp;  &nbsp;  <a class="display_only_in_search" href="https://www.chemieaufgaben.ch/forums/topic/functionalgroupswitheachotherreactingtoleave-condensationreactions1"> ?! Question/Answer ?! </a>   </div>
</p></div>
<div id="print-frage-inhalt">
<p class="p-frage">Given are the following: molecules. Let it go. These in One of them condensation reaction with each other reacting. <span class="CharChemConfig auto-compile"></span> </p>
<div class="tabelle-wrapper">
<table class="auto-breite-tabelle">
<tr>
<td> <strong> </p>
<div class="echem-formula"> {a) Two equal to Alcohol } </div>
<p> </strong><strong> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a1) } /\/OH + /\/OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a2) } \<|>/\OH + \<|>/\OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a3) } \/<`|>\/OH + HO\/<`|>\/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a4) } /<`|>\/<`|OH>\/ + /<`|>\/<`|OH>\/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a5) } OH|_(A75);/#2\ + |_(A75);HO/#2\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {a6) } 2* \<|>/<`|OH>\ </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {b) Two various Alcohol } </div>
<p> </strong><strong> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b1) } /\OH + HO/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b2) } /<`|OH>\ + /\OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b3) } \<|>/<`|OH>\ + /\OH </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {c) Alcohol and One carboxylic acid } </div>
<p> </strong><strong> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c1) } \/\OH + HO/<`|O|>\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c2) } \<|>/<`|OH>\ + HO/<`|O|>\<|>/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c3) } /\<|O`|>/OH + \<|>/<`|OH> </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {d) Two equal to carboxylic acid } </div>
<p> </strong><strong> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d1) } /<`|O|>\OH + HO/<`|O|>\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d2) } 2* $C()|O`|/OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d3) } 2* `/`\`|/\|\/`|O|\OH </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {e) Two various carboxylic acid } </div>
<p> </strong><strong> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e1) } /\<|O`|>/OH + HO/`|O| </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e2) } HO\|O`|/<`|>\/ + \/`|O|\OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e3) } HO\|O`|/<`|>\ + /`|O|\OH </div>
</td>
</tr>
<tr>
<td> <strong> </p>
<div class="echem-formula"> {f) Amina and One carboxylic acid } </div>
<p> </strong><strong> </strong></td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f1) } /NH2 + HO/`|O|\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f2) } \<|>/NH2 + /\|O`|/OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {f3) } \<|>/N<_(y-.5)H>\ + /\|O`|/OH </div>
</td>
</tr>
</table></div>
<hr class="hr-dotted"/>
</div>
						]]>
					</description>

					
					
				</item>

			
				<item>
					<guid>https://www.chemieaufgaben.ch/forums/topic/retrosynthesis-reduction/#post-9679</guid>
					<title><![CDATA[Reply To: <div class="text_topic_1">retrosynthesis, Reduction  (oc-35)</div>  Given are the following: Structures. How can The Substances from The This is the case for Hydrogenated hydrocarbons Manufacture will be? Write The This is the case for (Stable) Intermediate steps I &#8216;m going .. To the Part of must to The the right Place Reduced (Responsibility. Oxidated) will be, These Technical Difficulties Applicable It &#8216;s But to This Place not to take into account. <br> Sample solution given In the case of Example a). Please note: also, that The Notation with a Retrosynthesis arrow made has been. Go on . by analogy before. <span class="CharChemConfig auto-compile"></span> <div class="tabelle-wrapper"> <table class="auto-breite-tabelle"> <tr> <td> <div class="echem-formula"> {a) } /\/`|O|\OH </div> </td> <td> &rArr; </td> <td> <div class="echem-formula"> /\/`|O|\H </div> </td> <td> &rArr; </td> <td> <div class="echem-formula"> /\/`|OH </div> </td> <td> &rArr; </td> <td> <div class="echem-formula"> /\/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {b) } \<|>/`|O|\H </div> </td> </tr> <tr> <td> <div class="echem-formula"> {c) } \/<`|>\|O`|/OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {d) } /<`|>\/<`|O|>\/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {e) } OH|_(A75);/#2\ </div> </td> </tr> </table> </div> <hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/retrosynthesis-reduction/#post-9679</link>
					<pubDate>Thu, 01 Oct 2026 10:15:24 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						<p> <img decoding="async" src="https://www.chemieaufgaben.ch/pics/text.png" style="width: 1rem;"/><strong> Lösung: </strong>  </p>
<div id="print-antwort-inhalt">
<p class="p-antwort"><span class="CharChemConfig auto-compile"></span> </p>
<div class="tabelle-wrapper">
<table class="auto-breite-tabelle">
<tr>
<td>
<div class="echem-formula"> {a) } /\/`|O|\OH </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /\/`|O|\H </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /\/`|OH </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /\/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b) } \<|>/`|O|\H </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> \<|>/\OH </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> \<|>/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c) } \/<`|>\|O`|/OH </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> \/<`|>\|O`|/H </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> \/<`|>\/OH </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> \/<`|>\ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d) } /<`|>\/<`|O|>\/ </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /<`|>\/<`|OH>\/ </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /<`|>\/\/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e) } OH|_(A75);/#2\ </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /<`|>\ </div>
</td>
<td>
<div class="echem-formula"> </div>
</td>
<td>
<div class="echem-formula"> </div>
</td>
</tr>
</table></div>
</p></div>
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					<guid>https://www.chemieaufgaben.ch/forums/topic/retrosynthesis-reduction/#post-9678</guid>
					<title><![CDATA[<div class="text_topic_1">retrosynthesis, Reduction  (oc-35)</div>  Given are the following: Structures. How can The Substances from The This is the case for Hydrogenated hydrocarbons Manufacture will be? Write The This is the case for (Stable) Intermediate steps I &#8216;m going .. To the Part of must to The the right Place Reduced (Responsibility. Oxidated) will be, These Technical Difficulties Applicable It &#8216;s But to This Place not to take into account. <br> Sample solution given In the case of Example a). Please note: also, that The Notation with a Retrosynthesis arrow made has been. Go on . by analogy before. <span class="CharChemConfig auto-compile"></span> <div class="tabelle-wrapper"> <table class="auto-breite-tabelle"> <tr> <td> <div class="echem-formula"> {a) } /\/`|O|\OH </div> </td> <td> &rArr; </td> <td> <div class="echem-formula"> /\/`|O|\H </div> </td> <td> &rArr; </td> <td> <div class="echem-formula"> /\/`|OH </div> </td> <td> &rArr; </td> <td> <div class="echem-formula"> /\/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {b) } \<|>/`|O|\H </div> </td> </tr> <tr> <td> <div class="echem-formula"> {c) } \/<`|>\|O`|/OH </div> </td> </tr> <tr> <td> <div class="echem-formula"> {d) } /<`|>\/<`|O|>\/ </div> </td> </tr> <tr> <td> <div class="echem-formula"> {e) } OH|_(A75);/#2\ </div> </td> </tr> </table> </div> <hr class="hr-dotted">]]></title>
					<link>https://www.chemieaufgaben.ch/forums/topic/retrosynthesis-reduction/#post-9678</link>
					<pubDate>Thu, 01 Oct 2026 10:15:23 +0000</pubDate>
					<dc:creator>Rainer Steiger</dc:creator>

					<description>
						<![CDATA[
						
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<div id="top-frage-eins"><span class="top-frage">  <strong>&nbsp; Aufgabe: oc-35 </strong> &nbsp; &nbsp; </span></div>
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<p class="p-frage">Given are the following: Structures. How can The Substances from The This is the case for Hydrogenated hydrocarbons Manufacture will be? Write The This is the case for (Stable) Intermediate steps I &#8216;m going .. To the Part of must to The the right Place Reduced (Responsibility. Oxidated) will be, These Technical Difficulties Applicable It &#8216;s But to This Place not to take into account. <br /> Sample solution given In the case of Example a). Please note: also, that The Notation with a Retrosynthesis arrow made has been. Go on . by analogy before. <span class="CharChemConfig auto-compile"></span> </p>
<div class="tabelle-wrapper">
<table class="auto-breite-tabelle">
<tr>
<td>
<div class="echem-formula"> {a) } /\/`|O|\OH </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /\/`|O|\H </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /\/`|OH </div>
</td>
<td> &rArr; </td>
<td>
<div class="echem-formula"> /\/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {b) } \<|>/`|O|\H </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {c) } \/<`|>\|O`|/OH </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {d) } /<`|>\/<`|O|>\/ </div>
</td>
</tr>
<tr>
<td>
<div class="echem-formula"> {e) } OH|_(A75);/#2\ </div>
</td>
</tr>
</table></div>
<hr class="hr-dotted"/>
</div>
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