@article{Moosavi-Zare_Afshar-Hezarkhani_2024, title={N-sulfonic acid pyridinium-4-carboxylic acid chloride as a novel and efficient catalyst for the condensation reaction of aldehyde with thiobarbituric acid and ammonium acetate}, volume={10}, url={https://oiccpress.com/iranian-journal-of-catalysis/article/n-sulfonic-acid-pyridinium-4-carboxylic-acid-chloride-as-a-novel-and-efficient-catalyst-for-the-condensation-reaction-of-aldehyde-with-thiobarbituric-acid-and-ammonium-acetate/}, abstractNote={N-sulfonic acid pyridinium -4-carboxylic acid chloride {[Pyridine-N-SO3H-4-COOH]Cl} was synthesized, identified and applied as an effective catalyst for the preparation of pyrido[2,3-d:6,5-d]dipyrimidines by the condensation reaction of various aldehyde with 2-thiobarbituric acid and ammonium acetate under solvent-free conditions.The structure ofcatalyst was studied by various techniques including FT-IR, 1HNMR, 13CNMR, SEM, EDS, TEM, TGA, DTG and XRD analyses.}, number={2}, journal={Iranian Journal of Catalysis}, publisher={OICC Press}, author={Moosavi-Zare, Ahmad Reza and Afshar-Hezarkhani, Hadis}, year={2024}, month={Feb.}, keywords={Solvent-free, N-sulfonic acid pyridinioum-4-carboxylic acid chloride, Pyrido[2, 3-d:6, 5-d]dipyrimidine, 2-thiobarbituric acid, ammonium acetate, aldehyde. Ionic liquid} }