Patil, M., S. Shinde, S. Damate, and S. Patil. “Synthesis of Novel Acidic Ionic Liquid [BBSA-DBU][HSO4] and Its Catalytic Activities for Synthesis of Pyrazolopyranopyrimidine Derivatives”. Asian Journal of Chemistry 30, no. 5 (April 4, 2018): 961–966. Accessed December 20, 2024. https://asianpubs.org/index.php/ajchem/article/view/30_5_6.