<i>N</i>-Heterocyclic Carbene Catalyzed Highly Chemoselective Intermolecular Crossed Acyloin Condensation of Aromatic Aldehydes with Trifluoroacetaldehyde Ethyl Hemiacetal
作者:Bandaru T. Ramanjaneyulu、Sriram Mahesh、Ramasamy Vijaya Anand
DOI:10.1021/ol502581b
日期:2015.1.2
A highlychemoselectiveintermolecularcrossed acyloin condensation between aromaticaldehydes and trifluoroacetaldehyde ethyl hemiacetal has been developed under mild reaction conditions using N-heterocyclic carbene as a catalyst. A wide range of aromaticaldehydes bearing electron-withdrawing and -donating substituents underwent a smooth transformation to their corresponding trifluoromethyl containing