Heck cross-coupling of vinyl heteroaromatic compounds with aryl and heteroaryl halides using Pd(II) complex under phosphine-free conditions
作者:Manne Annapurna、P. Vishnuvardhan Reddy、Surya Prakash Singh、Mannepalli Lakshmi Kantam
DOI:10.1016/j.tet.2013.10.078
日期:2013.12
The palladium-catalyzed cross-coupling reaction of vinyl heteroaromatic compounds with aryl bromides and heteroaryl bromides is described using air and moisture stable N,N′,N″,O-tetrafunctional Pd catalyst under phosphine-free conditions. As a result a variety of trans-1,2-disubstituted vinyl heterocycles were obtained in high to good yields.
描述了在无膦条件下使用空气和湿气稳定的N,N ',N '' ,O-四官能团Pd催化剂对乙烯基杂芳族化合物与芳基溴化物和杂芳基溴化物进行钯催化的交叉偶联反应。结果,以高到良好的产率获得了各种反式-1,2-二取代的乙烯基杂环。