Kamlar M, Císařová I, Veselý J. Alkynylation of heterocyclic compounds using hypervalent iodine reagent.
Org Biomol Chem 2016;
13:2884-9. [PMID:
25642993 DOI:
10.1039/c4ob02625j]
[Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The alkynylation of various nitrogen- and/or sulphur-containing heterocyclic compounds using hypervalent iodine TMS-EBX by utilization of tertiary amines under mild conditions is described. The developed metal-free methodology furnishes the corresponding alkynylated heterocycles bearing quaternary carbon in high yields.
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