Direct C-H Arylation of Heteroarenes with Aryl Chlorides by Using an Abnormal N-Heterocyclic-Carbene-Palladium Catalyst
作者:Jasimuddin Ahmed、Samaresh Chandra Sau、Sreejyothi P、Pradip Kumar Hota、Pavan K. Vardhanapu、Gonela Vijaykumar、Swadhin K. Mandal
DOI:10.1002/ejoc.201601218
日期:2017.2.3
Herein, we report a versatile catalytic system for the direct C–H arylation of heteroarenes with activated aryl chloride substrates. The catalyst works successfully for a variety of heteroarenes and aryl chloride coupling partners under very low catalyst-loading conditions. We have successfully performed the direct C–H arylations of 1-methylpyrrole, 1-methylindole, furan, thiophene, furfural, and N-benzyl-1
在这里,我们报告了一种多功能催化系统,用于杂芳烃与活化的芳基氯底物的直接 C-H 芳基化。该催化剂在非常低的催化剂负载条件下成功地用于各种杂芳烃和芳基氯偶联伙伴。我们已经成功地进行了 1-甲基吡咯、1-甲基吲哚、呋喃、噻吩、糠醛和 N-苄基-1,2,3-三唑与芳基氯伙伴的直接 C-H 芳基化反应,收率良好,且不使用任何添加剂. 此外,我们使用这种催化过程开发了克级肌肉松弛剂丹曲林的一锅合成方案。此外,本催化系统可用于在一锅中进行连续芳基化。