Acidic ionic liquid [bmim]HSO4:: An efficient catalyst for acetalization and thioacetalization of carbonyl compounds and their subsequent deprotection

被引：148

作者：

Gupta, Neeraj ^{[1
]}

Sonu ^{[1
]}

Kad, Goverdhan L. ^{[1
]}

Singh, Jasvinder ^{[1
]}

机构：

[1] Panjab Univ, Dept Chem, Chandigarh 160014, India

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 09期

关键词：

ionic liquid; solvent free; microwave irradiation; acetalization; chemoselective;

D O I：

10.1016/j.catcom.2006.11.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Acetalization/thioacetalization of carbonyl compounds, under solvent free conditions, has been described using acidic ionic liquid 1-Butyl-3-methylimidazolium hydrogen sulfate ([bmim]HSO4) at room temperature, in conjunction with microwave energy and ammonium chloride. The catalyst retains its acidity, catalytic activity, and recyclability in ammonoium chloride, whereas its decomposition is observed under microwave irradiation. The same catalyst has also been used for the deprotection of acetals, thioacetals as well as for transthioacetalization under microwave irradiation. (c) 2006 Elsevier B.V. All rights reserved.

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页码：1323 / 1328

页数：6

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