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Khanivar R, Zare A. Highly effectual synthesis of 4,6-diarylpyrimidin-2(1H)-ones using N,N,N′,N′-tetramethylethylenediaminium-N,N′-disulfonic acid hydrogen sulfate as a dual-functional catalyst. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2018-0075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The highly effectual synthesis of 4,6-diarylpyrimidin-2(1H)-ones via the one-pot multicomponent reaction of acetophenones with arylaldehydes and urea in the presence of trimethylsilyl chloride and a catalytic amount of the ionic liquid N,N,N′,N′-tetramethylethylenediaminium-N,N′-disulfonic acid hydrogen sulfate ([TMEDSA][HSO4]2) under solvent-free conditions has been described. The reaction results and conditions of the catalytic system have been compared with previously reported catalysts. [TMEDSA][HSO4]2 afforded better results in comparison with the reported catalysts in terms of one or more of these factors: yield, temperature, the reaction media, time, and generality. Moreover, a plausible reaction mechanism based on dual functionality of the catalyst has been proposed.
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Affiliation(s)
- Roghayyeh Khanivar
- Department of Chemistry , Payame Noor University , PO Box 19395-3697 Tehran , I.R. Iran
| | - Abdolkarim Zare
- Department of Chemistry , Payame Noor University , PO Box 19395-3697 Tehran , I.R. Iran , e-mail:
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