Heck reaction with an alkenylidenecyclopropane: the formation of arylallylidenecyclopropanes
作者:Yacoub Fall、Henri Doucet、Maurice Santelli
DOI:10.1016/j.tetlet.2007.03.103
日期:2007.5
3-tetramethylcyclopropylidene)propenes. This reaction tolerates several functional groups on the aryl bromides. Even heteroaryl bromides have been used successfully. This reaction probably proceeds via a classical oxidative addition of the aryl bromide to palladium, insertion of the CCMe2 bond in the Ar–Pd bond followed by β-elimination to give the dienes.
钯-四膦催化的亚烷基环丙烷的芳基化反应可简单而直接地获得1-芳基-2-甲基-1-(2,2,3,3-四甲基环亚丙基)丙烯。该反应耐受芳基溴化物上的几个官能团。甚至杂芳基溴化物也已成功使用。该反应可能是通过将芳基溴经典地氧化加成到钯中,将CCMe 2键插入Ar-Pd键中,然后进行β-消除反应生成二烯而进行的。