Mohamad Pour F, Maghsoodlou MT, Heydari R, Lashkari M. Oxalic acid dihydrate catalyzed synthesis of 3,4-dihydropyrimidin-2-(1H)-one derivatives under thermal and solvent-free conditions. Iran. J. Catal. 2024;6(2). Accessed June 9, 2026. https://oiccpress.com/ijc/article/view/3895