Asymmetric synthesis of γ-lactones through reaction of sulfoxonium ylides, aldehydes, and ketenes
作者:Nicholas J. Peraino、Han-Jen Ho、Mukulesh Mondal、Nessan J. Kerrigan
DOI:10.1016/j.tetlet.2014.05.130
日期:2014.7
A method for the enantioselective synthesis of γ-lactones through the reaction of enantioenriched sulfoxonium ylides, aldehydes, and ketenes was developed. Enantioenriched (98% ee) aminosulfoxonium ylide was subjected to reaction with a variety of aldehydes (both aromatic and aliphatic) and disubstituted ketenes, leading to the formation of α,β-substituted γ-lactones in moderate to very good diastereoselectivity