Advanced Organic Chemistry: verschil tussen versies
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===20 januari 2020=== | ===20 januari 2020=== | ||
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Versie van 20 jan 2020 19:12
Examenvragen
20 januari 2020
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22 januari 2019
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21 januari 2019 VM
Examen
Oplossingen
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28 januari 2013 NM
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- Explain the following reaction.
- How is given cyclopropane synthesized from diethyl malonate in several steps? Choose reagents such that a maximal yield is obtained.
- 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).
- Explain formation of this product in presence of base.
- Give product A and explain how this reaction occurs.
- What products will be formed in following reactions?
