title: New Route Synthesis of Thiadiazoles, Bisthiadiazoles, Thiadiazolotriazines, and Pyrazolothiadiazoles Based on Hydrazonoyl Halides and Dihydrazinylthiadiazole.
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).
authors.affiliation: Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia. arsayed@kfu.edu.sa.|Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt. arsayed@kfu.edu.sa.
authors.forename: Abdelwahed R
authors.initials: AR
authors.lastname: Sayed
authors.affiliation: Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia. sshihry@kfu.edu.sa.
authors.forename: Shar Saad
authors.initials: SS
authors.lastname: Al-Shihry
mesh_terms: D066241:Carbon-13 Magnetic Resonance Spectroscopy; D060326:Chemistry Techniques, Synthetic; D066244:Proton Magnetic Resonance Spectroscopy; D017550:Spectroscopy, Fourier Transform Infrared; D013830:Thiadiazoles / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D013830:Thiadiazoles
keywords: dihydrazinylthiadiazole; hydrazinecarbodithioate; hydrazonoyl; thiadiazoles