Synthesis of aminopyrazoles from sydnones and ynamides

Aminopyrazoles are prepared from readily accessible sydnones and sulfonyl ynamides using either a copper-mediated sydnone alkyne cycloaddition (CuSAC) or in situ generated strained cyclic ynamides.

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Bibliographic Details
Published in:Organic & biomolecular chemistry 2017-02, Vol.15 (7), p.1575-1579
Main Authors: Wezeman, T, Comas-Barceló, J, Nieger, M, Harrity, J P A, Bräse, S
Format: Article
Language:English
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Description
Summary:Aminopyrazoles are prepared from readily accessible sydnones and sulfonyl ynamides using either a copper-mediated sydnone alkyne cycloaddition (CuSAC) or in situ generated strained cyclic ynamides.
ISSN:1477-0520
1477-0539
DOI:10.1039/c6ob02518h