question_answer

In which of the below reaction do we find \[\alpha \], \[\beta \]-unsaturated    carbonyl    compounds undergoing a ring closure reaction with conjugated dienes?

A)  Perkin reaction

B)  Diels-Alder reaction

C)  Claisen rearrangement

D)  Hofmann reaction

Correct Answer: B

Solution :

 The addition of \[\alpha ,\beta \]-unsaturated carbonyl compound, with c9njugated diene is called Diels-Alder reaction.