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Facile, mild and efficient synthesis of azines using phosphonic dihydrazide

Khidre, Rizk E., Mohamed, Hanan A., Kariuki, Benson M. and El-Hiti, Gamal A. 2020. Facile, mild and efficient synthesis of azines using phosphonic dihydrazide. Phosphorus, Sulfur, and Silicon and the Related Elements 195 (1) , pp. 29-36. 10.1080/10426507.2019.1633531

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Several bis(N'-arylpropanehydrazonoyl chlorides) were synthesized in good yields from condensation reactions of hydrazonoyl chlorides and phosphonic dihydrazide. Under the conditions employed, none of the expected phosphorylhydrazines were isolated. Nucleophilic substitution of bis(N'-arylpropanehydrazonoyl chlorides) with thiophenol, sodium phenylsulfinate, hydroxyl amine, and piperidine afforded the corresponding azines. Similarly, 1,2-bis(heteroaryl)ethylidene)hydrazines were produced from reaction of phosphonic dihydrazide and heteroaryl methyl ketones. The structures of the products were confirmed by NMR and IR spectral data along with X-ray crystal structure determination and their purities were confirmed by the elemental analyses.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Publisher: Taylor & Francis
ISSN: 1042-6507
Date of First Compliant Deposit: 10 July 2019
Date of Acceptance: 15 June 2019
Last Modified: 26 Nov 2020 13:16

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