Shi P, Tu Y, Wang C, Ma D, Bolm C. Visible Light-Promoted Synthesis of β-Keto Sulfoximines from
N-Tosyl-Protected Sulfoximidoyl Chlorides.
J Org Chem 2022;
87:3817-3824. [PMID:
35041422 DOI:
10.1021/acs.joc.1c02971]
[Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Under visible light, N-tosyl-protected sulfoximidoyl chlorides react with aryl alkynes to give β-keto sulfoximines. The reaction is characterized by a high functional group tolerance and good yields. It can be improved by the presence of a ruthenium photocatalyst. Air is the source of the ketonic oxygen in the products.
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