reported. This approach provides for the first time a facile method for the rapid synthesis of gem-difluoro olefins using fluorinated diazoalkanes under mild reaction conditions. Cyclopropanation products were obtained when N-arylated rather than N-alkylated indoles were applied in this reaction. Mechanistic studies reveal the importance of the β-fluoride elimination step in this transformation. This method
报道了
钯催化的CH官能化和
吲哚杂环与
氟化的重氮
烷烃之间连续的β-
氟化物消除反应。该方法首次为在温和的反应条件下使用
氟化的重氮
烷烃快速合成宝石二
氟烯烃提供了一种简便的方法。当在该反应中使用N-芳基化而不是N-烷基化的
吲哚时,获得了
环丙烷化产物。机理研究表明,在这种转化过程中,β-
氟化物消除步骤的重要性。该方法为1-芳基-(2,2-二
氟乙烯基)基团的简单直接转移提供了新的概念,从而获得了宝石-二
氟烯烃。