A highly efficient catalyst for Suzuki–Miyaura coupling reaction of benzyl chloride under mild conditions
作者:Zhenhong Guan、Buyi Li、Guoliang Hai、Xinjia Yang、Tao Li、Bien Tan
DOI:10.1039/c4ra06551d
日期:——
organic synthesis, are usually synthesized through the traditional electrophilic substitution reaction i.e., Friedel–Crafts reaction, which suffers from the rearrangement and weak reactivity of aromatic compounds with deactivating/electron-withdrawing groups. The Suzuki–Miyaura coupling reaction of low-cost benzyl chloride as an alternative method overcomes these defects. Pd(II) organometallic catalysts
二芳基甲烷衍生物是有机合成中必不可少的组成部分,通常是通过传统的亲电取代反应(即Friedel-Crafts反应)合成的,该反应会遭受芳族化合物与失活/吸电子基团的重排和弱反应性的影响。低成本苄氯的Suzuki-Miyaura偶联反应作为一种替代方法克服了这些缺陷。加入Pd(II固定在三苯基膦-官能化微孔针织芳基聚合物)有机金属催化剂(KAPS(PH-PPH 3)-Pd)作为新型非均相催化剂用于苄基氯的Suzuki-Miyaura偶联反应中,并在温和条件下以76分钟-1(4569 h -1)的周转频率(TOF)表现出优异的催化活性。这项工作表明,催化剂的微孔结构可以迅速吸附底物,从而促进它们之间的相互作用,并最终提高催化效率。