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Abstract
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hiazole is described for the synthesis of 1,3-bis((3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazineylidene)propan-2-ol (BBTA)
or 1-((1Z,3E)-1-(dimethylamino)-3-(((Z)-3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazineylidene)prop-1-en-2-yl)pyridin-1-ium
(DMBT). A noteworthy aspect of the synthesis of these derivatives is that the structure of the vinamidinium salt acts as the
determining factor for the type of product formed. Specifically, phenyl-substituted vinamidinium salts predominantly lead to
the formation of symmetric BBTA derivatives, whereas pyridinium-based vinamidinium salts favor the production of asymmetric
DMBT compounds. The reaction was carried out in the presence of triethylamine as the base and acetonitrile as the solvent under
catalyst-free conditions. The structure of the new products was confirmed based on their spectral data, including 1H NMR,
13C NMR, IR, mass spectrometry, high-resolution mass spectrometry and X-ray analysis.
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