Palladium complex-catalyzed germylation of allylic halides using (germyl)stannanes
作者:Taichi Nakano、Kazuyoshi Ono、Yoshiya Senda、Toshihiko Migita
DOI:10.1016/s0022-328x(00)00620-3
日期:2001.1
(Triethylgermyl)tributylstannane reacts metal-selectively with allylic halides at room temperature (r.t.) in the presence of tris(dibenzylideneacetone)dipalladium, Pd2(dba)3CHCl3, to provide an alternative route to allylgermanes. (Dimethylphenylgermyl)tributylstannane regio- and stereoselectively reacts more readily with allylic halides than (triethylgermyl)tributylstannane affording the corresponding allylgermanes
(三乙基锗基)三丁基锡烷在室温(rt)下在三(二亚苄基丙酮)二钯,Pd 2(dba)3 CHCl 3的存在下与金属烯丙基卤化物发生金属选择性反应,从而提供了另一种制备烯丙基锗烷的途径。与(三乙基锗基)三丁基锡烷相比,(二甲基苯基锗基)三丁基锡烷与烯丙基卤化物的区域和立体选择性反应更容易,以定量收率得到相应的烯丙基锗烷。