A cobalt−Xantphos-catalyzed, LiCl-mediated system has been developed for the direct and expedient preparation of arylzinc reagents in THF from the corresponding aryl iodides, bromides, and chlorides. Owing to the use of THF as a versatile solvent, the thus-formed arylzinc reagents displayed a high degree of compatibility with a variety of conventional as well as newly emerging metal-catalyzed cross-coupling
已经开发了
钴-黄药催化的,LiCl介导的系统,用于从相应的芳基
碘化物,
溴化物和
氯化物直接且方便地制备THF中的芳基
锌试剂。由于使用THF作为通用溶剂,因此形成的芳基
锌试剂显示出与各种常规以及新兴的
金属催化的交叉偶联反应的高度相容性。