The First Intermolecular Transition Metal-Catalyzed [5+2] Cycloadditions with Simple, Unactivated, Vinylcyclopropanes
作者:Paul A. Wender、Claudia M. Barzilay、Alaric J. Dyckman
DOI:10.1021/ja0021159
日期:2001.1.1
cycloadd to alkenes or alkynes. 3 However, as first reported from these laboratories in 1995, in the presence of transition metal catalysts, VCPs react efficiently with a variety of π-systems. 4 For example, the intermolecularcycloadditions of 1-silyloxy-VCPs ( 1, R ) OTBS) with a variety of alkynes in the presence of [Rh(CO) 2Cl]2 catalystproVide the [5+2] cycladducts in high yields and in 1 -3 h at