title: Rhodium-catalyzed direct C-H amidation of azobenzenes with sulfonyl azides: a synthetic route to sterically hindered ortho-substituted aromatic azo compounds.
abstract: A rhodium(III)-catalyzed direct ortho-amidation of azobenzenes with sulfonyl azides as the amino source is disclosed. This reaction exhibits a broad substrate scope, high functional group tolerance, and regioselectivity, providing a variety of sterically hindered ortho-substituted azobenzene derivatives in good to excellent yield.
authors.affiliation: School of Chemical and Material Science, Shanxi Normal University , Linfen, 041004, China.
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Jia
authors.forename: Jie
authors.initials: J
authors.lastname: Han