Practical Synthesis of Amides via Copper/ABNO-Catalyzed Aerobic Oxidative Coupling of Alcohols and Amines
Susan L. Zultanski, Jingyi Zhao, and Shannon S. Stahl*
University of Wisconsin, United States
J. Am. Chem. Soc., 2016, 138 (20), pp 6416–6419
DOI: 10.1021/jacs.6b03931
Publication Date (Web): May 12, 2016
Abstract
A modular Cu/ABNO catalyst system has been identified that enables efficient aerobic oxidative coupling of alcohols and amines to amides. All four permutations of benzylic/aliphatic alcohols and primary/secondary amines are viable in this reaction, enabling broad access to secondary and tertiary amides. The reactions exhibit excellent functional group compatibility and are complete within 30 min–3 h at rt. All components of the catalyst system are commercially available.
University of Wisconsin, United States
J. Am. Chem. Soc., 2016, 138 (20), pp 6416–6419
DOI: 10.1021/jacs.6b03931
Publication Date (Web): May 12, 2016
Abstract
A modular Cu/ABNO catalyst system has been identified that enables efficient aerobic oxidative coupling of alcohols and amines to amides. All four permutations of benzylic/aliphatic alcohols and primary/secondary amines are viable in this reaction, enabling broad access to secondary and tertiary amides. The reactions exhibit excellent functional group compatibility and are complete within 30 min–3 h at rt. All components of the catalyst system are commercially available.
Transition state of alcohol oxidation by Cu complex and nitroxyl radical
cf. Mechanism of Copper(I)/TEMPO-Catalyzed Aerobic Alcohol Oxidation
Shannon S. Stahl and co-workers J. Am. Chem. Soc. 2013, 135, 2357
DOI: 10.1021/ja3117203
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