Reactions with hydrazonoyl halides XIX1: Synthesis of some pyrazole and 5-arylazothiazole derivatives

Article abstract of DOI:10.1080/10426509808032458

Hydrazonoyl chlorides 1 reacted with 2-aryl-1-cyano-1-thiazol-2-ylethenes 2 in presence of triethylamine to give the cycloadducts 4. which were converted to the corresponding pyrazoles 5 by the action of sodium methoxide. The reaction of hydrazonoyl halides 1 and 6 with each of 2-arylidene-2-cyanoethanethioamides 7 and 2-arylhydrazono-2-cyanoethanethioamides 14 in ethanolic triethylamine or ethanolic sodium hydroxide solutions, has been investigated. Structures of all the products were established on the basis of their spectral data and alternative synthesis.

Full text of DOI:10.1080/10426509808032458

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Phosphorus, Sulfur, and Silicon and the
Related Elements
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REACTIONS WITH HYDRAZONOYL HALIDES
XIX1: SYNTHESIS OF SOME PYRAZOLE AND
5-ARYLAZOTHIAZOLE DERIVATIVES
Hussein F. Zohdi a , Nora M. Rateb a & Abdou O. Abdelhamid a
a Department of Chemistry, Faculty of Science , Cairo University , Giza,
Egypt
Published online: 24 Sep 2006.
To cite this article: Hussein F. Zohdi , Nora M. Rateb & Abdou O. Abdelhamid (1998) REACTIONS
WITH HYDRAZONOYL HALIDES XIX1: SYNTHESIS OF SOME PYRAZOLE AND 5-ARYLAZOTHIAZOLE
DERIVATIVES, Phosphorus, Sulfur, and Silicon and the Related Elements, 133:1, 103-117, DOI:
10.1080/10426509808032458
To link to this article: http://dx.doi.org/10.1080/10426509808032458
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