Fe powder catalyzed highly efficient synthesis of alkenyl halides via direct coupling of alcohols and alkynes with aqueous HX as exogenous halide sources
作者:Yong-Rong Yang、Qiang Zhang、Feng-Tian Du、Jian-Xin Ji
DOI:10.1016/j.tet.2015.04.065
日期:2015.6
A simple and efficient catalytic method for the synthesis of alkenyl halides via direct coupling of alcohols and alkynes using aqueous HX (X=Cl, Br) as halide sources has been developed under mild conditions in the presence of Fe powder (1 mol %). In comparison with the high loading of FeX3 in previously reported protocols, the present approach provides a remarkable attractive methodology to a diverse
已经在温和的条件下,在铁粉(1摩尔%)存在的条件下,开发了一种简单高效的催化方法,该方法通过使用HX水溶液(X = Cl,Br)作为卤化物源,通过醇和炔烃的直接偶联来合成烯基卤化物。与以前报道的方案中FeX 3的高负载相比,由于操作简单和金属污染程度低的优点,本方法为各种范围的烯基卤化物提供了引人注目的有吸引力的方法。