Thieme Chemistry Journals Awardees – Where Are They Now?A Stereoselective Tripeptide Catalyst for Conjugate Addition Reactions of Acetophenones to Dicyanoolefins

Abstract Peptides of the type H-Pro-Pro-Xaa-NH2 were evaluated as catalysts for conjugate addition reactions of acetophenones to cyanoolefins. Tripeptide H-d-Pro-Pro-Glu-NH2 with a carboxylic acid moiety in the side chain of Xaa was identified as a catalyst that provides γ,γ-dicyanoacetophenones in yields of up to 90% and stereoselectivies of up to 88:12 er.