For a diene to undergo a Diels-Alder reaction,it must: be substituted with elect

Question

For a diene to undergo a Diels-Alder reaction,it must: be substituted with electron-withdrawing groups be able to adopt an s-trans conformation be substituted with electron-donating groups be able to adopt an s-cis conformation For Diels-Alder cycloaddition reactions to take place most rapidly and in highest yield the dienophile must: be substituted with electron-withdrawing groups be able to adopt ands-trans conformation be substituted with electron-donating groups be able to adopt an s-cis conformation according to their reactivity dienophiles in a Diels-Aler reaction (1 - most

Explanation / Answer

1) In the Diels alder reaction, the reaction is happened between the conjugated i.e. 1,3 double bonds and 2,4-double bonds, hence the structure must be able to adopt the cis confirmation in order for the reaction with the alkene to form ring chain compounds

Hence for the first question, the correct answer is Option D

2) The correct answer is Option A

The presence of electron-withdrawing group will lead to the reaction in the forward direction forming chain compounds

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