Nickel-Catalyzed Site-Selective C3–H Functionalization of Quinolines with Electrophilic Reagents at Room Temperature
作者:Xinghao Sheng、Mingpan Yan、Bo Zhang、Wai-Yeung Wong、Nobuaki Kambe、Renhua Qiu
DOI:10.1021/acscatal.3c01553
日期:2023.7.21
Herein, we disclose a mild and versatile nickel-catalyzed method for exclusive C3-selective thioetherification, alkylation, arylation, acylation, and phosphorylation of quinolines with a variety of electrophiles. Unactivated quinolines can be functionalized without directing groups at room temperature. Control experiments indicated that quinolines underwent 1,4-addition with nickel hydride species
在此,我们公开了一种温和且通用的镍催化方法,用于喹啉与各种亲电子试剂的排他性C3选择性硫醚化、烷基化、芳基化、酰化和磷酸化。未活化的喹啉可以在室温下无需定向基团即可官能化。对照实验表明,喹啉与烷基镍中间体β-H消除产生的氢化镍物质进行1,4-加成反应生成1,4-二氢喹啉,进一步通过随后对外部亲电试剂的亲核攻击和氧化芳构化生成C3-H功能化产物。