Palladium-Catalyzed Dehydrative Cross-Coupling of Allylic Alcohols and <i>N</i>-Heterocycles Promoted by a Bicyclic Bridgehead Phosphoramidite Ligand and an Acid Additive
作者:Kyungjun Kang、Jaewook Kim、Ansoo Lee、Woo Youn Kim、Hyunwoo Kim
DOI:10.1021/acs.orglett.6b00001
日期:2016.2.5
A mild and efficient dehydrative cross-coupling reaction between allylic alcohols and N-heterocycles using palladium catalysis is reported. A bicyclic bridgehead phosphoramidite (briphos) ligand together with Pd(dba)2 is a highly efficient catalyst, and an acid additive involved in the rate-determining step promotes the catalytic cycle. The coupling reaction of allylic alcohols with N-heterocycles