Cp*Co(iii)-catalyzed ortho-amidation of azobenzenes with dioxazolones

Abstract

Cp*Co(III)-catalyzed C–H amidation of azobenzene with dioxazolones has been developed. The amidation reaction does not require external oxidants and gives carbon dioxide as the only by-product. Both symmetrical and unsymmetrical azobenzenes were found to undergo amidation smoothly with broad functional group tolerance.