Porous polymeric ligand promoted copper-catalyzed C-N coupling of(hetero)aryl chlorides under visible-light irradiation

• 作者: Erfei Wang Kaixuan Chen Yinan Chen Jiawei Zhang Xinrong Lin Mao Chen
• 来源期刊: 中国科学：化学（英文版）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: COMMUNICATIONS
• 页码范围: 17-21
• 页数: 5页
• 语种: 英文

摘要

A porous polymeric ligand(PPL)has been synthesized and complexed with copper to generate a heterogeneous catalyst(Cu@PPL)that has facilitated the efficient C-N coupling with various(hetero)aryl chlorides under mild conditions of visible-light irradiation at 80 ℃(58 examples,up to 99％yields).This method could be applied to both aqueous ammonia and substituted amines,and is compatible to a variety of functional groups and heterocycles,as well as allows tandem C-N couplings with conjunctive dihalides.Furthermore,the heterogeneous characteristic of Cu@PPL has enabled a straightforward catalyst separation in multiple times of recycling with negligible catalytic efficiency loss by simple filtration,affording reaction mixtures containing less than 1 ppm of Cu residue.