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Alazawi SK, Al-Jumaili MHA. Novel spiroheterocycles containing a 1,3,4-thiadiazole unit: Synthesis and spectroscopic characterization. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221109503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We describe the preparation of a series of novel spiroheterocycles, namely 1,3,4-thiadiazole derivatives possessing an indane unit. These active heterocyclic compounds are prepared starting from thiocarbohydrazide and 2-indanone via an intermediate indan-2-thiocarbohydrazone which is used to afford the corresponding 2-(1-acetylhydrazino)-4 H-acetyl-5-spiro(indano-2-yl)-1,3,4-thiadiazoline in an acidic medium. The 1,3,4-thiadiazole derivatives are obtained in good yields by reaction with aromatic carboxylic acids at reflux temperature in the presence of POCl3 as a catalyst, their structure–activity relationships are discussed and the structures of the newly synthesized derivatives are confirmed by spectroscopic techniques.
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Affiliation(s)
- Shaymaa K. Alazawi
- Department of Chemistry, College of Science, University of Mosul, Mosul, Iraq
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