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

HA Emam, AO Abdelhamid

Index: Emam, Hussein A.; Abdelhamid, Abdou O. Phosphorus, Sulfur and Silicon and Related Elements, 1997 , vol. 131, p. 37 - 48

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Citation Number: 4

Abstract

Abstract 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- ...