New Synthetic Approach to α-Chlorocinnamates: First Example of Synthesis of Functionally Substituted Alkenes Using Catalytic Olefination Reaction

Abstract

A new simple and efficient transformation of carbonyl compounds to α-chlorocinnamates is described. Catalytic olefination reaction with ethyl trichloroacetate gives target alkenes in moderate to good yields. The reaction with aromatic aldehydes proceeds stereoselectively to form preferably Z-isomers.