One-pot synthesis of 3, 4-dihydropyrimidin-2(1H)-ones, thiones and 2-selenoxo DHPMs using 1-butyl-3-methylimidazolium hydrogen sulfate as non-halogenated ionic liquid. (6th August 2020)

• Record Type: Journal Article
• Authors: Mohammadi, Behzad; Behbahani, Farahnaz K.; Marandi, Gholam B.; Mirza, Behrouz
• Is Part Of: Phosphorus, sulfur, and silicon and the related elements. Volume 196:Number 1(2021)
• Page Start: 54
• Page End: 60
• Publication Date: 2020-08-06
• Subjects: Multi-component reaction -- three-component reaction -- dihydropyrimidin-2(1H)-ones/thiones -- DHPMs -- [BMIM][HSO4]; Sulfur compounds -- Periodicals; Organosulfur compounds -- Periodicals; Phosphorus compounds -- Periodicals; Organophosphorus compounds -- Periodicals; Silicon compounds -- Periodicals; Organosilicon compounds -- Periodicals; 546
• DOI: 10.1080/10426507.2020.1800702
• Languages: English
• ISSNs: 1042-6507

Abstract

Abstract: 1-Butyl-3-methylimidazolium hydrogen sulfate ([BMIM][HSO4 ]) as a non-halogenated ionic liquid (IL) was used for the synthesis of 3, 4-dihydropyrimidin-2(1H)-ones and thiones or 2-selenoxo DHPMs in a Biginelli type multi-component reaction. By using this ionic liquid, the reaction time was significantly reduced and the products were obtained in good to high yields. Also, in this method, the synthesis of novel 2-selenoxo DHPMs is introduced in the presence of this ionic liquid and their structures were determined by 1 H and 13 C NMR, FT-IR, and Elemental analysis. Graphical Abstract: