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1,3-Disulfonic acid benzimidazolium chloride as an efficient and recyclable ionic liquid catalyst for the synthesis of 3,4-dihydropyrimidine-2-(1H)-ones/thiones.
- Source :
-
Research on Chemical Intermediates . Apr2016, Vol. 42 Issue 4, p3303-3314. 12p. 2 Diagrams, 4 Charts, 5 Graphs. - Publication Year :
- 2016
-
Abstract
- 1,3-Disulfonic acid benzimidazolium chloride ionic liquid ([Dsbim]Cl) was prepared, characterized and applied as an efficient, homogeneous and recyclable catalyst for the synthesis of 3,4-dihydropyrimidine-2-(1H)-ones/thiones through the one-pot three-component condensation of aromatic aldehydes, urea/thiourea and ethyl acetoacetate under solvent-free conditions. The key advantages of this novel protocol are its short reaction time, high yields, mild and clean conditions, practical simplicity and its capacity for reuse several times without a noticeable decrease in catalytic activity. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09226168
- Volume :
- 42
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Research on Chemical Intermediates
- Publication Type :
- Academic Journal
- Accession number :
- 113778361
- Full Text :
- https://doi.org/10.1007/s11164-015-2211-2