Cuprous chloride promoted coupling reaction of diethoxyphosphinyldifluoromethylcadmium reagent with aryl iodides: A practical and convenient preparation of α,α-difluoro benzylic phosphonates
作者:Weiming Qiu、Donald J. Burton
DOI:10.1016/j.jfluchem.2013.04.008
日期:2013.11
cross coupling reaction of diethoxyphosphinyldifluoromethylcadmium reagent with aryl iodides was promoted by CuCl under mild conditions to give α,α-difluoro benzylic phosphonates in good yields. A variety of functional groups, including halides, phosphonate, nitro, ketone, carboxylic acid and ester in aryl iodides, could be tolerated. This methodology has been successfully applied to prepare α,α-difluoro
CuCl在温和的条件下促进了二乙氧基次膦基二氟甲基镉试剂与芳基碘的交叉偶联反应,从而以高收率得到了α,α-二氟苄基膦酸酯。可以容许包括芳基碘化物中的卤化物,膦酸酯,硝基,酮,羧酸和酯在内的多种官能团。该方法已经成功地用于制备α,α-二氟Fostedil 9。