Convenient preparation of difluoromethylene-functionalized compounds from chlorodifluoroacetic acid
作者:Masato Yoshida、Yoshihiro Morinaga、Masahiko Iyoda
DOI:10.1016/0022-1139(93)02985-n
日期:1994.7
A convenient route for the synthesis of difluoromethylene-functionalized compounds from chlorodifluoroacetic acid has been investigated. Bis(chlorodifluoroacetyl) peroxide, which was synthesized from chlorodifluoroacetic acid via its acid anhydride, was found to be a good reagent for the chlorodifluoromethylation of electron-rich aromatic compounds and olefins. The chlorine atom of the chlorodifluoromethylated
已经研究了从氯二氟乙酸合成二氟亚甲基官能化的化合物的简便途径。由氯二氟乙酸经其酸酐合成的双(氯二氟乙酰基)过氧化物被发现是富电子芳族化合物和烯烃的氯二氟甲基化的良好试剂。如此制备的氯二氟甲基化化合物的氯原子通过在自由基条件下分别与氢化三丁基锡和烯丙基三丁基锡反应来交换氢和烯丙基。