Ionic liquids as efficient phase-transfer catalysts for the solid base-promoted monoalkylation of diethyl malonate
Ionic liquids as efficient phase-transfer catalysts for the solid base-promoted monoalkylation of diethyl malonate作者机构：Department of Chemistry East China Normal University Shanghai 200062 China
出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)
年 卷 期：2007年第18卷第3期
页 面：279-282页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金：Ministry of Education of the People's Republic of China MOE: 105075
主 题：Ionic liquids Phase-transfer catalysis Diethyl malonate Alkylation
摘 要：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-hase） could also be recycled after the extraction of products with ether.
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