Copper(II)-Photocatalyzed N–H Alkylation with Alkanes
作者:Yi-Wen Zheng、Rok Narobe、Karsten Donabauer、Shahboz Yakubov、Burkhard König
DOI:10.1021/acscatal.0c01924
日期:2020.8.7
of N–H bonds with alkanes using a photoinduced copper(II) peroxide catalytic system. Upon light irradiation, the peroxide serves as a hydrogen atom transfer reagent to activate stable C(sp3)–H bonds for the reaction with a broad range of nitrogen nucleophiles. The method enables the chemoselective alkylation of amides and is utilized for the late-stage functionalization of N–H bond containing pharmaceuticals
A one step synthesis of functionlized N-acylanthranilamidevia Pd-catalyzed carboxamidation of o-halo substituted N-phenylamide consisting of isocyanideinsertion followed by oxidation of the imine intermediate has been achived successfully. Furthermore, at elevated temprature (160oC) the Pd-catalyzed tandem reaction afforded functionlized quinazolin-4-one in a single step without the isolation of