TY - JOUR ID - 85817 TI - Highly effective synthesis of 3, 4-dihydropyrimidin-2 (1H)-ones using pyridinium-N-sulfonic acid bisulfate as a dual-functional catalyst JO - Asian Journal of Nanoscience and Materials JA - AJNM LA - en SN - 2645-775X AU - Dehghani, Sima AU - Merajoddin, Maria AU - Zare, Abdolkarim AD - Department of Chemistry, Payame Noor University, PO Box 19395-3697 Tehran, Iran Y1 - 2019 PY - 2019 VL - 2 IS - 4 SP - 367 EP - 375 KW - 3 KW - 4-Dihydropyrimidin-2 (1H)-one Acidic ionic liquid Dual-functional catalyst Pyridinium-N-sulfonic acid bisulfate (Py-SO3H][HSO4]) Solvent-free DO - 10.26655/AJNANOMAT.2019.4.1 N2 - Acidic ionic liquid pyridinium-N-sulfonic acid bisulfate ([Py-SO3H][HSO4]) has effectively catalyzed the production of 3, 4-dihydropyrimidin-2 (1H)-ones via the condensation reaction of the arylaldehydes with β-ketoesters and urea under solvent-free conditions. Due to the dual-functionality of [Py-SO3H][HSO4] (bearing acidic and basic sites), it was highly effective and general catalyst for the reaction. Additionally, an attractive mechanism for the dual-functionality of the catalyst was proposed. UR - https://www.ajnanomat.com/article_85817.html L1 - https://www.ajnanomat.com/article_85817_1641d84f6c76d1a423dc3a4742b9347b.pdf ER -