[BMIM][PF6]Promotes the Synthesis of Halohydrin Esters from Diols Using Potassium Halides

被引：7

作者：

Oromi-Farrus, Mireia ^{[1
]}

Eras, Jordi ^{[1
]}

Villorbina, Gemma ^{[1
]}

Torres, Merce ^{[2
]}

Llopis-Mestre, Veronica ^{[3
]}

Welton, Tom ^{[3
]}

Canela, Ramon ^{[1
]}

机构：

[1] Univ Lleida, Dept Chem, Lleida 25198, Spain

[2] Univ Lleida, Dept Food Technol, Lleida 25198, Spain

[3] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

来源：

ANALYTICAL SCIENCES | 2008年 / 24卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.2116/analsci.24.1341

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Haloesterification of diverse diols with various carboxylic acids was achieved using potassium halides (KX) as the only halide source in ionic liquids. The best yield was obtained in [BMIM][PF6] when 1,2-octanediol, palmitic acid and KBr were used. This yield was 85% and the regioisomer with the bromine in primary position was present in a 75:25 ratio. The regioisomeric ratio could be improved using either KCl or some phenylcarboxylic acids. [BMIM][PF6] acts as both reaction media and catalyst of the reaction. To the best of our knowledge, this type of combined reaction using an ionic liquid is unprecedented. The other solvents tested did not lead either to the same yield or to the same regioisomeric ratio.

引用

页码：1341 / 1345

页数：5

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