REACTIONS WITH HYDRAZONOYL HALIDES XVII[l]. SYNTHESIS AND REACTIONS OF 1-BROMO-2-[4-(N-PIPERIDINO-SULFONYL)PHENYL]ETHANEDIONE-1-ARYLHYDRAZONE

The reaction of sulfamidohydrazonoyl bromide 3 with nucleophiles led to displacement of the bromide. Treatment of 3 with potassium thiocyanate or potassium selenocyanate gave 2-imino-1,3,4-thiadiazolines 5 and 2-iminoselenadiazolines 6 respectively. Reaction of 3 with thiourea and phenylthiourea yie...

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Bibliographic Details
Published in:Phosphorus, sulfur, and silicon and the related elements sulfur, and silicon and the related elements, 1997-12, Vol.131 (1), p.37-48
Main Authors: Emam, Hussein A., Abdelhamid, Abdou O.
Format: Article
Language:English
Subjects:
2,3-Dihydro-1,3,4-selenadiazole
2,3-Dihydro-1,3,4-thiadiazole
dithioate esters: Nitrile imides
Hydrazonoyl halides
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Summary:The reaction of sulfamidohydrazonoyl bromide 3 with nucleophiles led to displacement of the bromide. Treatment of 3 with potassium thiocyanate or potassium selenocyanate gave 2-imino-1,3,4-thiadiazolines 5 and 2-iminoselenadiazolines 6 respectively. Reaction of 3 with thiourea and phenylthiourea yielded the thiazole derivatives 15 and 16, while dithioesters 26(or 27) reacts with 3 to afford 2,3-dihydro-1,3,4-thiadiazoles 30-32.
ISSN:1042-6507
1563-5325
DOI:10.1080/10426509708031594