Catalytic Asymmetric Petasis Reactions of Vinylboronates
作者:Xianglin Shi、William F. Kiesman、Anna Levina、Zhili Xin
DOI:10.1021/jo4016425
日期:2013.9.20
that the amine component played a role in triggering the reaction between the binaphthol catalyst and the vinylboronate in the catalyticreaction sequence. The 4 Å MS enhanced both the rate and enantioselectivity by effective removal of water from the reaction system. A novel rearrangement reaction of the unconjugated allylic amine Petasisreaction product to a conjugated allylic amine was also observed