Asymmetric synthesis of (+)-trans-aerangis lactone

Abstract

Asymmetric synthesis of (+)-trans-aerangis lactone was achieved from commercially available 1-hexanol or 1-hexanal in four steps via iridium-catalyzed diastereoselective and enantioselective carbonyl crotylation from the alcohol or aldehyde oxidation level, and ruthenium-catalyzed olefin metathesis.