期刊
CATALYSIS LETTERS
卷 143, 期 5, 页码 463-468出版社
SPRINGER
DOI: 10.1007/s10562-013-0978-6
关键词
Choline-based ionic liquids; Thermostabilities; Acidities; Biginelli reactions; 3,4-Dihydro-2(H)-pyrimidinones
资金
- National Natural Science Foundation of China [20903037, 21172058]
- Research Fund for the Doctoral Program of Higher Education of China [20094104120003]
A series of choline-based ionic liquids (CIL) have been synthesized in this work. The results suggested that both the cations and the anions have significant influences on their properties such as thermostabilities, acidities and their performances for the synthesis of 3, 4-dihydro-2(H)-pyrimidinones. The optimized catalytic system based on the CIL [DMEA][HSO4] for the Biginelli reactions benefits from the wide substrates tolerance, benign reaction conditions, easy work-up procedures, and the feasible reusability of the ionic liquid.
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