Advanced Organic Chemistry: verschil tussen versies
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| Regel 6: | Regel 6: | ||
==28 januari 2013 NM== | ==28 januari 2013 NM== | ||
#Explain the following reaction. [[Bestand: | #Explain the following reaction. [[Bestand:org1.png]] | ||
#How is given cyclopropane synthesized from diethyl malonate in several steps? Choose reagents such that a maximal yield is obtained. [[Bestand:Voorbeeld.png]] | #How is given cyclopropane synthesized from diethyl malonate in several steps? Choose reagents such that a maximal yield is obtained. [[Bestand:Voorbeeld.png]] | ||
#This reaction scheme is an example of a benzannelation reaction. Upon heating, several consecutive steps happen so that the given end product is obtained. Among these steps are three electrocyclic reactions (two 4-electron and one 6-electron), a tautomerization, and a cycloaddition (not necessarily in this order). [[Bestand:Voorbeeld.png]] | #This reaction scheme is an example of a benzannelation reaction. Upon heating, several consecutive steps happen so that the given end product is obtained. Among these steps are three electrocyclic reactions (two 4-electron and one 6-electron), a tautomerization, and a cycloaddition (not necessarily in this order). [[Bestand:Voorbeeld.png]] | ||
Versie van 4 jan 2017 18:51
Examenvragen
28 januari 2013 NM
- Explain the following reaction.
- How is given cyclopropane synthesized from diethyl malonate in several steps? Choose reagents such that a maximal yield is obtained. Bestand:Voorbeeld.png
- This reaction scheme is an example of a benzannelation reaction. Upon heating, several consecutive steps happen so that the given end product is obtained. Among these steps are three electrocyclic reactions (two 4-electron and one 6-electron), a tautomerization, and a cycloaddition (not necessarily in this order). Bestand:Voorbeeld.png
- Explain formation of this product in presence of base. Bestand:Voorbeeld.png
- Give product A and explain how this reaction occurs. Bestand:Voorbeeld.png
- What products will be formed in following reactions? Bestand:Voorbeeld.png
