Sulfonic acidic ionic liquids: Efficient and environmentally benign catalysts for esterification

Wenshuai Zhu; Hua Shi; Huaming Li; Weihong Huang; Hui Liu; Yongsheng Yan; Zhigao Wang

Sulfonic acidic ionic liquids: Efficient and environmentally benign catalysts for esterification

Wenshuai Zhu, Hua Shi, Huaming Li, Weihong Huang, Hui Liu, Yongsheng Yan, Zhigao Wang

Jiangsu University

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

1 Scopus citations

Abstract

Esterification of salicylic acid with alcohols was investigated in the presence of Sulfonic Acidic Ionic Liquids (ILs). The catalytic activity of each ILs was dependent on both cation and anion. Two acidic ILs 1-methyl-3(3- sulfopropyl)-imidazolium hydrogensulfate ([MIMPS] [HSO₄]) and N-propanesulfonic acid pyridinium hydrogensulfate ([PSPy][HSO₄]) showed good activity. Esterification with primary alcohols gave the higher yield compared with secondary alcohols. Especially, ILs could be separated easily from the product and be reused eight times without significant loss of activity. Therefore, an efficient and environmentally benign approach for esterification of salicylic acid was provided.

Original language	English
Pages (from-to)	1283-1287
Number of pages	5
Journal	Fresenius Environmental Bulletin
Volume	20
Issue number	5 A
State	Published - 2011
Externally published	Yes

Keywords

Acidic ionic liquid
Environmentally benign
Esterification
Salicylic acid

Cite this

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title = "Sulfonic acidic ionic liquids: Efficient and environmentally benign catalysts for esterification",

abstract = "Esterification of salicylic acid with alcohols was investigated in the presence of Sulfonic Acidic Ionic Liquids (ILs). The catalytic activity of each ILs was dependent on both cation and anion. Two acidic ILs 1-methyl-3(3- sulfopropyl)-imidazolium hydrogensulfate ([MIMPS] [HSO4]) and N-propanesulfonic acid pyridinium hydrogensulfate ([PSPy][HSO4]) showed good activity. Esterification with primary alcohols gave the higher yield compared with secondary alcohols. Especially, ILs could be separated easily from the product and be reused eight times without significant loss of activity. Therefore, an efficient and environmentally benign approach for esterification of salicylic acid was provided.",

keywords = "Acidic ionic liquid, Environmentally benign, Esterification, Salicylic acid",

author = "Wenshuai Zhu and Hua Shi and Huaming Li and Weihong Huang and Hui Liu and Yongsheng Yan and Zhigao Wang",

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pages = "1283--1287",

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TY - JOUR

T1 - Sulfonic acidic ionic liquids

T2 - Efficient and environmentally benign catalysts for esterification

AU - Zhu, Wenshuai

AU - Shi, Hua

AU - Li, Huaming

AU - Huang, Weihong

AU - Liu, Hui

AU - Yan, Yongsheng

AU - Wang, Zhigao

PY - 2011

Y1 - 2011

N2 - Esterification of salicylic acid with alcohols was investigated in the presence of Sulfonic Acidic Ionic Liquids (ILs). The catalytic activity of each ILs was dependent on both cation and anion. Two acidic ILs 1-methyl-3(3- sulfopropyl)-imidazolium hydrogensulfate ([MIMPS] [HSO4]) and N-propanesulfonic acid pyridinium hydrogensulfate ([PSPy][HSO4]) showed good activity. Esterification with primary alcohols gave the higher yield compared with secondary alcohols. Especially, ILs could be separated easily from the product and be reused eight times without significant loss of activity. Therefore, an efficient and environmentally benign approach for esterification of salicylic acid was provided.

AB - Esterification of salicylic acid with alcohols was investigated in the presence of Sulfonic Acidic Ionic Liquids (ILs). The catalytic activity of each ILs was dependent on both cation and anion. Two acidic ILs 1-methyl-3(3- sulfopropyl)-imidazolium hydrogensulfate ([MIMPS] [HSO4]) and N-propanesulfonic acid pyridinium hydrogensulfate ([PSPy][HSO4]) showed good activity. Esterification with primary alcohols gave the higher yield compared with secondary alcohols. Especially, ILs could be separated easily from the product and be reused eight times without significant loss of activity. Therefore, an efficient and environmentally benign approach for esterification of salicylic acid was provided.

KW - Acidic ionic liquid

KW - Environmentally benign

KW - Esterification

KW - Salicylic acid

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M3 - 文章

AN - SCOPUS:79958092953

SN - 1018-4619

VL - 20

SP - 1283

EP - 1287

JO - Fresenius Environmental Bulletin

JF - Fresenius Environmental Bulletin

IS - 5 A

ER -

Sulfonic acidic ionic liquids: Efficient and environmentally benign catalysts for esterification

Abstract

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