Synthesis of Isoxazoles via One-Pot Oxidation/Cyclization Sequence from Propargylamines.

J Org Chem

College of Chemistry, and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China.

Published: August 2022

A facile strategy for the synthesis of isoxazoles has been efficaciously developed, which involves oxidation of propargylamines to the corresponding oximes followed by CuCl-mediated intramolecular cyclization of the latter. This protocol shows a straightforward way to construct a series of isoxazole cores with a wide range of functional group compatibility. Meanwhile, a gram-scale experiment and synthetic applications can be successfully operated.

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http://dx.doi.org/10.1021/acs.joc.2c00896DOI Listing

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