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Digitale Medien

Tautomerism in 6-Arylpyridazin-3(2H)-thiones and some of their reactions (1986)

Shams, Nabil A. ; El-Kafrawy, A. F. ; El-Sawy, O. M. ; [weitere]

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 328 (1986), S. 522-528

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Details

ISSN: 0021-8383

Schlagwort(e): Chemistry ; Organic Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: 6-Arylpyridazin-3(2H)-thiones exist mainly, if not entirely, in the thione form (1). This was shown by spectroscopic studies on some of these compounds and their substitution products either on the nitrogen or on the sulphur [in the mercaptopyridazine form (2)]. However, the reacting tautomer of these compounds was found to be dependent upon the basicity of the reaction medium. Selected 6-arylpyridazin-3(2H)-thione derivatives react with formaldehyde and sec-amines to give N-2-aminomethyl derivatives (8) [thione form (1)]. On the other hand oxidation and alkylation reactions gave disulphides (10) and S-alkyl derivatives (7) [mercapto form (2)].

Zusätzliches Material: 1 Tab.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/prac.19863280409

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