@article { author = {Shaabani, Ahmad and Bazgir, Ayoob and Arab Ameri, Sakineh and Sharifi Kiasaraie, Masoumeh and Samadi, Sima}, title = {Comparison of Catalytic Effect of Alkali and Alkaline Earth Metals Hydrogen Sulfate: As the Promoter for an Efficient Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones under Solvent-Free Conditions}, journal = {Iranian Journal of Chemistry and Chemical Engineering}, volume = {24}, number = {3}, pages = {67-71}, year = {2005}, publisher = {Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR}, issn = {1021-9986}, eissn = {}, doi = {10.30492/ijcce.2005.8118}, abstract = {Alkali and alkaline earth metals hydrogen sulfate catalyzed the one-pot three component condensation reactions of aldehydes, 1,3-dicarbonyl compounds and urea or thiourea under solvent-free conditions leading to 3,4-dihydropyrimidin-2(1H)-ones in high yields at 80 °C. Our results showed that Biginelli reaction not only is pH dependent, but the cation of catalyst plays an important role. }, keywords = {Biginelli reaction,Dihydropyrimidinones,Catalytic effect,Lithium hydrogen sulfate,Sodium hydrogen sulfate,Potassium hydrogen sulfate,Magnesium hydrogen sulfate}, url = {https://ijcce.ac.ir/article_8118.html}, eprint = {https://ijcce.ac.ir/article_8118_ec44c48c19d67af77bb7291a24faf0cd.pdf} }