Tropylium-Catalyzed O–H Insertion Reactions of Diazoalkanes with Carboxylic Acids
作者:Claire Empel、Thanh Vinh Nguyen、Rene M. Koenigs
DOI:10.1021/acs.orglett.0c04069
日期:2021.1.15
describe the application of a nonbenzenoid aromatic carbocation, namely tropylium, as an organic Lewis acid catalyst in O–H functionalization reactions of diazoalkanes with benzoic acids. The newly developed protocol is applicable to a wide range of diazoalkane and carboxylic acid substrates with excellent efficiency (43 examples, up to 99% yield).
在本文中,我们描述了一种非苯环芳族碳正离子,即对苯二酚,在重氮烷与苯甲酸的O–H官能化反应中作为有机路易斯酸催化剂的应用。新开发的协议以优异的效率(43个示例,产率高达99%)适用于各种重氮烷烃和羧酸底物。