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Review | Regular issue | Vol 60, No. 2, 2003, pp.437-455
Published online, 9th December, 2002
DOI: 10.3987/REV-02-559
Synthetic Utilities of N-Acylpyrazoles

Choji Kashima

*Department of Chemistry, University of Tsukuba, 1-1-1 Ten-nodai, Tsukuba-shi, Ibaraki, 305-8571, Japan

Abstract

Little attention had been paid to N-acylpyrazoles, because they are 20 times less reactive than the corresponding N-acylimidazoles. From this lower reactivity, N-acylpyrazoles seem to be sufficiently stable as the starting materials, and should be applied to the controlled reactions such as the chemo-, the regio- and the stereoselective reactions. In this review, the preparation of N-acylpyrazoles and their utilities for the organic syntheses are reviewed.