Cycloadditions of methylenecyclopropanes and strained bicyclo[n.1.0]alkanes to radicophilic olefins
作者:Armin De Meijere、Horst Wenck、Fereydoun Seyed-Mahdavi、Heinz Günter Viehe、Vincent Gallez、Ihsan Erden
DOI:10.1016/s0040-4020(01)87348-8
日期:1986.1
methylenecyclopropanes 1, 2, 11 upon reaction with α-donorsubstituted acrylonitriles 3a, 3c gave two types of products, regular [2+2] cycloadducts 6, 8, 10, 13, 14 and thiacyclopentane derivatives 7, 9. The capto-dative substituted methylenecyclopropane 12 preferentially homodimerized to 15 even in the presence of 2. The capto-dative olefin 3a also added across the central single bonds of a bicyclo[1.1.0.]butane