Palladium-Catalyzed Amidation of N-Tosylhydrazones with Isocyanides
作者:Fengtao Zhou、Ke Ding、Qian Cai
DOI:10.1002/chem.201102459
日期:2011.10.24
N‐tosylhydrazones: The direct formation of keteniminesfromcarbenes and isocyanides is limited to the reaction of Fischer carbene complexes or some specially stabilized carbenes with isocyanides. A Pd‐catalyzed amidation of N‐tosylhydrazones with isocyanides via a ketenimine intermediate in the presence of water is described. The method offers a general way to synthesize amides from carbonyl compounds through one‐carbon
Electrochemical Benzylic C–H Functionalization with Isocyanides
作者:Shanyu Tang、Régis Guillot、Laurence Grimaud、Maxime R. Vitale、Guillaume Vincent
DOI:10.1021/acs.orglett.2c00364
日期:2022.3.25
We report the challenging direct carbamoylation or cyanation of benzylic C(sp3)–H bonds with an isocyanide via an electrochemical process giving rise to structures that are encountered in several biologically relevant compounds and drugs. This transformation proceeds under mild conditions without the need for any external oxidant and avoids the necessity to start from a prefunctionalized benzylic substrate