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Porous polymeric ligand promoted copper-catalyzed C-N coupling of (hetero)aryl chlorides under visible-light irradiation
Science China Chemistry ( IF 10.4 ) Pub Date : 2020-10-29 , DOI: 10.1007/s11426-020-9859-9
Erfei Wang , Kaixuan Chen , Yinan Chen , Jiawei Zhang , Xinrong Lin , Mao Chen

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 °C (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.



中文翻译:

多孔聚合物配体在可见光辐射下促进铜催化(杂)芳基氯的CN偶联

已经合成了多孔聚合物配体(PPL)并与铜络合,生成多相催化剂(Cu @ PPL),该催化剂有助于在80°C的可见光照射下,与各种(杂)芳基氯化物进行有效的CN偶联。 (58个例子,高达99%的收益率)。该方法可以应用于氨水和取代的胺,并且与多种官能团和杂环兼容,并允许CN与偶合二卤化物串联。此外,Cu @ PPL的非均质特性使它可以在多次循环中直接分离催化剂,而通过简单过滤就可以将催化效率损失忽略不计,从而提供了含有少于1 ppm Cu残留物的反应混合物。

更新日期:2020-11-03
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