Ionic liquids as efficient phase-transfer catalysts for the solid base-promoted monoalkylation of diethyl malonate

Hui Sun; Juan Li; Xiao Chen Cai; Dong Jiang; Li Yi Dai

doi:10.1016/j.cclet.2007.01.028

Ionic liquids as efficient phase-transfer catalysts for the solid base-promoted monoalkylation of diethyl malonate

Hui Sun, Juan Li, Xiao Chen Cai, Dong Jiang, Li Yi Dai

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

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.

Original language	English
Pages (from-to)	279-282
Number of pages	4
Journal	Chinese Chemical Letters
Volume	18
Issue number	3
DOIs	https://doi.org/10.1016/j.cclet.2007.01.028
State	Published - Mar 2007

Keywords

Alkylation
Diethyl malonate
Ionic liquids
Phase-transfer catalysis

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10.1016/j.cclet.2007.01.028

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title = "Ionic liquids as efficient phase-transfer catalysts for the solid base-promoted monoalkylation of diethyl malonate",

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.",

keywords = "Alkylation, Diethyl malonate, Ionic liquids, Phase-transfer catalysis",

author = "Hui Sun and Juan Li and Cai, \{Xiao Chen\} and Dong Jiang and Dai, \{Li Yi\}",

year = "2007",

month = mar,

doi = "10.1016/j.cclet.2007.01.028",

language = "英语",

volume = "18",

pages = "279--282",

journal = "Chinese Chemical Letters",

issn = "1001-8417",

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TY - JOUR

T1 - Ionic liquids as efficient phase-transfer catalysts for the solid base-promoted monoalkylation of diethyl malonate

AU - Sun, Hui

AU - Li, Juan

AU - Cai, Xiao Chen

AU - Jiang, Dong

AU - Dai, Li Yi

PY - 2007/3

Y1 - 2007/3

N2 - 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.

AB - 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.

KW - Alkylation

KW - Diethyl malonate

KW - Ionic liquids

KW - Phase-transfer catalysis

UR - https://www.scopus.com/pages/publications/34247241066

U2 - 10.1016/j.cclet.2007.01.028

DO - 10.1016/j.cclet.2007.01.028

M3 - 文章

AN - SCOPUS:34247241066

SN - 1001-8417

VL - 18

SP - 279

EP - 282

JO - Chinese Chemical Letters

JF - Chinese Chemical Letters

IS - 3

ER -

Ionic liquids as efficient phase-transfer catalysts for the solid base-promoted monoalkylation of diethyl malonate

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Keywords

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