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Molecules 2017, 22(2), 336; doi:10.3390/molecules22020336

New Route Synthesis of Thiadiazoles, Bisthiadiazoles, Thiadiazolotriazines, and Pyrazolothiadiazoles Based on Hydrazonoyl Halides and Dihydrazinylthiadiazole

1
Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia
2
Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
*
Author to whom correspondence should be addressed.
Academic Editor: Panayiotis A Koutentis
Received: 1 January 2017 / Accepted: 15 February 2017 / Published: 21 February 2017
(This article belongs to the Special Issue Sulfur-Nitrogen Heteroaromatics)
View Full-Text   |   Download PDF [851 KB, uploaded 22 February 2017]   |  

Abstract

Synthesis and characterization of new thiadiazoles, bisthiadiazoles from the reaction of mono- and di-hydrazonoyl halides with various hydrazinecarbodithioate derivatives were studied. Treatment of hydrazonoyl halides with 2,5-dihydrazinyl-1,3,4-thiadiazole afforded new bistriazines containing thiadiazole; we also examined the reaction of 2,5-dihydrazinyl-1,3,4-thiadiazole with active methylene compounds to afford new pyrazoles containing thiadiazole compounds. The new synthesized compounds were identified by elemental analysis and various spectral data (Fourier transform infrared spectroscopy, mass spectrometry, 1H and 13C nuclear magnetic resonance). View Full-Text
Keywords: hydrazonoyl; dihydrazinylthiadiazole; hydrazinecarbodithioate; thiadiazoles hydrazonoyl; dihydrazinylthiadiazole; hydrazinecarbodithioate; thiadiazoles
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Sayed, A.R.; Al-Shihry, S.S. New Route Synthesis of Thiadiazoles, Bisthiadiazoles, Thiadiazolotriazines, and Pyrazolothiadiazoles Based on Hydrazonoyl Halides and Dihydrazinylthiadiazole. Molecules 2017, 22, 336.

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