Tran, Trang, Thang Duong, and Xuan Thi Luu. “The Novel and Green Synthesis of 6-Amino-4-Phenyl-2-Thioxo-1,2,3,4-Tetrahydropyrimidine-5-Carbonitrile via the Solvent-Free Biginelli Multi-Component Reaction Catalysed by Choline Chloride/2ZnCl2”. Science & Technology Development Journal: Natural Sciences 8, no. 4 (February 17, 2025): In press. Accessed February 22, 2025. https://stdjns.scienceandtechnology.com.vn/index.php/stdjns/article/view/1370.