Efficient copper catalysts for C H bond arylation under microwave heating: Direct access to multi-substituted pivanilides
作者:Hyun Ji Yang、Bijoy P. Mathew、Dong Gun Oh、Kyungjae Myung、Ja Hun Kwak、Sung You Hong
DOI:10.1016/j.catcom.2016.11.022
日期:2017.2
We herein describe a parallel comparison between homogeneous and heterogeneous copper catalysts for microwave-assisted direct CH bond arylation. These catalytic systems feature enhanced catalytic activities, unique bulky ligand/base effects, mild conditions, and operational simplicity with reduced catalyst loadings and shortened reaction times. A wide range of synthetically challenging multi-substituted
我们在此描述了用于微波辅助直接CH键芳基化的均相和非均相铜催化剂之间的平行比较。这些催化系统具有增强的催化活性,独特的庞大的配体/碱效应,温和的条件和操作简便性,并减少了催化剂的负载量并缩短了反应时间。直接组装了各种合成挑战性的多取代的苯甲酰肼。值得注意的是,在无配体条件下,铜交换的β沸石显示出良好的可回收性,证明了其作为高效可重复使用的多相催化平台的潜力。