photoredox and copper catalysis is described. This protocol uses commercially available CF2-reagents as radical precursors and carboxylic acids as oxygen-based nucleophiles, providing access to difluoroalkylated allylic esters. This protocol could be extended to intramolecular two-component 1,4-difluoroalkylesterification to access 3-substituted benzobutyrolactones. Preliminary mechanistic studies support
描述了通过双光氧化还原和
铜催化实现的 1-芳基-1,3-二烯的选择性三组分 1,4-二氟烷基酯化。该协议使用市售的 CF 2试剂作为自由基前体,使用
羧酸作为氧基亲核试剂,从而提供对二氟烷基化烯
丙酯的访问。该协议可以扩展到分子内双组分 1,4-二氟烷基酯化以获取 3-取代苯并丁内酯。初步的机械研究支持一个激进的过程。