Catalytic Asymmetric Cross-Dehydrogenative Coupling of 2<i>H</i>
-Chromenes and Aldehydes
作者:Xinhui Pan、Xigong Liu、Shutao Sun、Zhilin Meng、Lei Liu
DOI:10.1002/cjoc.201800369
日期:2018.12
The first catalyticasymmetric cross‐dehydrogenative coupling of 2H‐chromenes with aldehydes using o‐chloranil (3,4,5,6‐tetrachloro‐1,2‐ benzoquinone) as an oxidant has been described. The organocatalytic process is tolerated with a broad range of structurally and electronically varied 2H‐chromenes and aldehydes with good yield and high enantiocontrol.