Tayebi S, Niknam K. Synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ols) via multi-component reactions by using silica-bonded sulfamic acid derivatives. Iran. J. Catal. 2024;2(2). Accessed June 20, 2026. https://oiccpress.com/ijc/article/view/3725