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ChemInform Abstract: Convenient Route to Some New Pyrazole, Pyrazolo(3,4-d)pyridazine and 2, 3-Dihydrothiadiazole Derivatives Incorporating a Benzothiazole Moiety.

✍ Scribed by A. M. FARAG; K. M. DAWOOD; Z. E. KANDEEL

Publisher: John Wiley and Sons
Year: 2010
Weight: 33 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199703173

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✦ Synopsis

Convenient Route to Some New Pyrazole, Pyrazolo(3,4-d)pyridazine and 2, 3-Dihydrothiadiazole Derivatives Incorporating a Benzothiazole Moiety.

-The hydrazonoyl bromides (I) react with different substituted benzothiazoles to afford the title compounds (IV), (VI), and (VIII). Benzothiazole derivative (V) reacts with phenylisothiocyanate to afford a non-isolable intermediate. Treatment of the latter with (I) in the presence of KOH gives, in each case, one isolable product (VIII) . -(FARAG, A. M.;

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