Nickel-Catalyzed Suzuki–Miyaura Coupling of Heteroaryl Ethers with Arylboronic Acids
作者:Xiao-Jian Li、Jin-Ling Zhang、Yu Geng、Zhong Jin
DOI:10.1021/jo4005537
日期:2013.5.17
Nickel-catalyzed Suzuki–Miyaura coupling of heteroaryl ethers with arylboronic acids was described. Selective activation of the phenol C–O bonds was achieved by converting them into the corresponding aryl 2,4-dimethoxy-1,3,5-triazine-6-yl ethers, in which aryl C–O bond could be selectively cleaved with inexpensive, air-stable NiCl2(dppf) as a catalyst. Coupling of these readily accessible heteroaryl
镍催化杂芳基醚与芳基硼酸的铃木-宫浦偶合。苯酚C-O键的选择性活化是通过将其转化为相应的芳基2,4-二甲氧基-1,3,5-三嗪-6-基醚来实现的,其中芳基C-O键可以用廉价的方法选择性裂解。 ,空气稳定的NiCl 2(dppf)作为催化剂。这些易于获得的杂芳基醚的偶联被证明对广泛的官能团具有耐受性。