The use of a template as a linchpin motif in directed remoteC-H functionalization is a versatile yet relatively underexplored strategy. We have developed a template-directed approach to realizing one-pot sequential palladium-catalyzed meta-selective C-H olefination of phenols, and nickel-catalyzed ipso-C-O activation and arylation. Thus, this bifunctional template converts phenols to synthetically
Transition-metal-catalyzed remote meta-C H alkylation and alkynylation of aryl sulfonic acids enabled by an indolyl template
作者:Pengfei Zhang、Qingxue Ma、Zhiwei Jiang、Xiaohua Xu、Zhong Jin
DOI:10.1016/j.cclet.2023.109361
日期:2024.8
Transition-metal-catalyzed remote spCH functionalization of arylsulfonicacids was hardly ever realized owing to competitive -CH functionalization of aryl sulfonates and electron-deficient nature of phenyl ring. Herein, with the assistance of a practical biaryl indolyl directing template, palladium-catalyzed remote spCH alkylation of arylsulfonicacids have been achieved in moderate to good yields with exclusive