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
的亚甲基环1,2,11在与α-donorsubstituted丙烯腈反应3A,3C,得到两种类型的产品,日常[2 + 2] cycloadducts 6,8,10,13,14和thiacyclopentane衍生物7,9的的Capto-格取代的亚甲基环丙烷12即使在存在2的情况下也优先均聚为15。所述巯基-烯烃3a也跨双环[1.1.0。]丁烷衍生物4b和双环[2.1.0]戊烷5a的中心单键添加,以通过双自由基中间体产生16和19。