TfOH-Catalyzed Highly Regioselective Synthesis of Conjugated Enones by Coupling of Alkynes and Aldehydes

Triflic acid-catalyzed regioselective enone synthesis from intermolecular coupling of aldehydes and alkynes has been developed. The present reaction is very efficient, effective, simple in nature and mild. The substrate scope is very diverse. This metathesis reaction exclusively provided trans product using aryl and aliphatic aldehydes and internal and terminal alkynes. An efficient and regioselective triflic acid-catalyzed enone synthesis from intermolecular coupling reaction of aldehydes and alkynes has been developed. The present reaction is very effective, simple and mild and has varied scope for different substrates. Both aryl and aliphatic aldehydes participated smoothly in the reaction and provided trans product exclusively.image

Automated summary

The regioselective enone synthesis from intermolecular coupling of aldehydes and alkynes has been developed using triflic acid as the catalyst. This reaction is efficient, effective, simple and mild, with diverse substrate scope. Both aryl and aliphatic aldehydes can smoothly participate in the reaction and exclusively provide trans product.