Amine-Catalyzed Coupling of Aldehydes and Ketenes Derived from Fischer Carbene Complexes: Formation of β-Lactones and Enol Ethers
作者:Craig A. Merlic、Brandon C. Doroh
DOI:10.1021/jo034476n
日期:2003.7.1
Aldehydes react with ketenesgenerated from photolysis of Fischer chromium carbene complexes to generate either beta-lactones or enol ethers resulting from decarboxylation of beta-lactones. The reaction is catalyzed by tertiary amines and can occur with diastereoselectivity greater than 20:1 with DMAP as the catalyst.