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Short Paper | Regular issue | Vol 100, No. 6, 2020, pp.955-963
Published online, 7th May, 2020
DOI: 10.3987/COM-20-14254
Convenient Methods for the Synthesis of Novel Thiadiazoles and Polythiadiazoles

Abedlwahed R. Sayed* and Yasair S. Al-Faiyz

*Department of Chemistry, Faculty of Science, King Faisal University, Hofuf 31982, Saudi Arabia

Abstract

In this study, the novel thiadiazoles were formed via the reaction of hydrazonoyl halides with methyl 2-(adamantan-2-ylidene)hydrazinecarbodithioate. Also, the reaction of 2,5-dihydrazinyl-1,3,4-thiadiazoles with 2-adamantanone or acetylferrocene produced the 2,5-bis(2-(adamantan-2-ylidene)hydrazinyl)-1,3,4-thiadiazole or 2,5-bis(2-(1-(ferrocenylidene)hydrazinyl)-1,3,4-thiadiazole, respectively. Analogously, treatment of terephthalaldehyde with 2,5-dihydrazinyl-1,3,4-thiadiazole afforded new poly(benzylidenehydrazinyl-1,3,4-thiadiazole). Finally, the reaction of bishydrazonoyl halides with 2,5-dihydrazinyl-1,3,4-thiadiazole afforded new poly(1,3,4-thiadiazolo[2,3-c][1,2,4]triazine). The synthetic structures for the final products are suggested and discussed. The compound structures of the products were recognized by different spectroscopic analyses.