A Swift, Expedient and Solvent Less Synthesis of Highly Diversified 1,2,4-Triazolo [1,5-A] Pyrimidines Bearing Pyridine Scaffold
Keywords:
1,2,4-Triazolo [1,5-A] Pyrimidines, Pyridine, Biginelli, Aminoazoles, Analytical TechniquesAbstract
The biological importance of 1,2,4-triazolo[1,5-a]pyrimidines is well documented. Over the years, various substituted derivatives of these heterocycles have shown utility against a range of biological targets. A, synthesis of 1,2,4-triazolo[1,5-a]pyrimidines bearing pyridine scaffold is based on the Biginelli like cyclocondensation of aromatic aldehydes and acetoacetamide with aminoazoles containing a guanidine fragment. The structures of all the newly synthesized compounds (4a-t) were elucidated by various analytical techniques like FT-IR spectroscopy, mass spectrometry and 1H NMR spectroscopy.
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