Chen W, Zhang J, Wang B, Zhao Z, Wang X, Hu Y. Tandem Synthesis of 3-chloro-4-iodoisoxazoles from 1-copper(I) alkynes, dichloroformaldoxime, and molecular iodine.
J Org Chem 2015;
80:2413-7. [PMID:
25594794 DOI:
10.1021/jo502634h]
[Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A tandem synthesis for structurally novel 3-chloro-4-iodoisoxazoles was developed by simply mixing 1-copper(I) alkynes, dichloroformaldoxime, and molecular iodine together. The combination of 1-copper(I) alkyne and molecular iodine was well used as a synthetic equivalent of 1-iodoalkyne without the need for tedious preparation, purification, and storage of 1-iodoalkyne.
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