copper-catalyzed cyclopropanol ring opening cross-coupling reactions with difluoroalkyl bromides, perfluoroalkyl iodides, monofluoroalkyl bromides, and 2-bromo-2-alkylesters to synthesize various β-(fluoro)alkylated ketones are reported. The reactions feature mild conditions and excellent functional group compatibility and can be scaled up to gram scale. Preliminary mechanistic studies suggest the involvement
报道了新型和通用的
铜催化
环丙醇与二氟烷基
溴、
全氟烷基
碘、单氟烷基
溴和2-
溴-2-烷基酯的开环交叉偶联反应,合成各种β-(
氟)烷基化酮。该反应条件温和,官能团相容性好,可放大至克级。初步的机理研究表明自由基中间体的参与。利用
环丙醇开环产生的羰基,二氟烷基-烷基交叉偶联产物还可以很容易地转化为更有价值和更多样化的含偕二
氟化合物。