Novel Functional Ionic Liquids as Metal-Free, Efficient and Recyclable Catalysts for the Carbonylation of Formaldehyde

被引：13

作者：

Song, Heyuan ^{[1
]}

Jing, Fuxiang ^{[1
]}

Jin, Ronghua ^{[1
]}

Li, Zhen ^{[1
]}

Chen, Jing ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China

来源：

CATALYSIS LETTERS | 2014年 / 144卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Formaldehyde; Carbonylation; Methyl glycolate; Ethylene glycol; Ionic liquids; ETHYLENE-GLYCOL; CATIONS; ACIDS;

D O I：

10.1007/s10562-014-1199-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Methyl glycolate (MG) was synthesized as a precursor to ethylene glycol from the catalytic carbonylation of formaldehyde followed by esterification with methanol by using metal-free, efficient and recyclable SO3H-functionalized ionic liquids (BAILs) as catalysts. Among the studied BAILs, N-butyl-N-(3-sulfonylpropyl) thiomorpholine-1,1-dioxide triflate showed excellent activity and MG selectivity. The effects of reaction parameters such as reactant, solvent, catalyst loading, molar ratio of H2O to H2CO, temperature, pressure, and reaction time were studied. MG was obtained in high yield under mild conditions. At 160 degrees C, 5.0 MPa, and reactant mole ratio of BAIL: H2CO:H2O = 1:40: 80, 98 % conversion of formaldehyde was achieved with 94 % selectivities of MG. Catalysts did not show any significant deterioration in performance in repeated use up to eight batches.

引用

页码：711 / 716

页数：6

共 18 条

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