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Pyrazoles VI: The electron‐releasing capacity of the pyrazole ring

Name: Pyrazoles VI: The electron‐releasing capacity of the pyrazole ring
Keywords: 3. Good health

descriptionPublicationkeyboard_double_arrow_right Article 01 Aug 1969Publisher:WileyJournal:Journal of Heterocyclic Chemistry, volume 6, pages 545-551 (issn: 0022-152X, eissn: 1943-5193,

Authors: C. Wijnberger; Clarisse L. Habraken;

doi: 10.1002/jhet.5570060415

Pyrazoles VI: The electron‐releasing capacity of the pyrazole ring

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Abstract

AbstractUV and PMR spectral data and CO frequencies of some methylpyrazoles containing in the 3‐, 4‐ or 5‐position, a formyl‐, acetyl‐ or ethoxycarbonyl group are reported. These data confirm earlier conclusions that, in particular, the 4‐pyrazolyl group acts as an electron releasing group. The syntheses of a number of formyl‐, acetyl‐ and ethoxycarbonyl pyrazoles are described. In addition, some 4‐dicyanovinyl‐ and 4‐tricyanovinylpyrazoles were investigated.

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Leiden University
Netherlands

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