Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1258712 | Chinese Chemical Letters | 2007 | 4 Pages |
Abstract
Ionic liquids (ILs) based on 1,3-dialkylimidazolium and tetraalkylammonium cations were employed as a series of efficient, environmentally benign phase-transfer catalysts (PTCs) for the base-promoted monoalkylation of diethyl malonate. The influence of various heterogeneous bases on yields was studied. Good yields and high selectivity were obtained. Solvent-free, mild reaction condition, short reaction time, and easy purification were the merits of this method. The catalytic system (IL-base) could also be recycled after the extraction of products with ether.
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Authors
Hui Sun, Juan Li, Xiao Chen Cai, Dong Jiang, Li Yi Dai,