A general method for the synthesis of five‐membered and six‐membered selenaheterocycles through Ag‐catalyzed C−Se bond‐forming reaction is reported. This reaction proceeds via intramolecular cyclization of arylboronic acids with selenium powder. Preliminary mechanism studies demonstrate that this transformation involves a selenium‐centred radical intermediate.
据报道,通过Ag催化的C-Se键形成反应合成五元和六元
硒杂环的通用方法。该反应通过芳基
硼酸与
硒粉的分子内环化进行。初步的机理研究表明,这种转变涉及一个以
硒为中心的自由基中间体。