Copper-catalyzed asymmetric ring opening of oxabicyclic alkenes with organolithium reagents
作者:Pieter H. Bos、Alena Rudolph、Manuel Pérez、Martín Fañanás-Mastral、Syuzanna R. Harutyunyan、Ben L. Feringa
DOI:10.1039/c2cc16855c
日期:——
A highly efficient method is reported for the asymmetric ringopening of oxabicyclicalkenes with organolithium reagents. Using a copper/chiral phosphoramidite complex together with a Lewis acid (BF(3).OEt(2)), full selectivity for the anti isomer and excellent enantioselectivities were obtained for the ring opened products.