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GreenSunday

铁杆木虫 (正式写手)


[资源] Novel Brønsted acidic ionic liquid as efficient and reusable

一篇有关硫酸氢根离子液制备及在酯化反应应用的文献,很不错。
Novel Brønsted acidic ionic liquid as efficient and reusable catalyst system for esterification

Abstract
Under mild conditions and without any additional organicsolvent,esterification of alcohols by carboxylic acids could be carriedout in three new halogen-free Brønsted acidic ionic liquids, 1-(4-sulfonic acid) butyl-3-methylimidazolium hydrogen sulfate, 1-(4-sulfonic acid) butylpyridinium hydrogen sulfate and N-(4-sulfonic acid)butyl triethylammonium hydrogen sulfate. Especially for esterification of ethanol by acetic acid, good conversion rate and high selectivity were obtained, and the liquid esters formed a separate phase that was decanted. The ionic liquid could be reused after removal of water under vacuum.

[ Last edited by wxwdoctor on 2007-3-25 at 20:04 ]
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berlin

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★★★★★ 五星级,优秀推荐

最好同时给出出处,以及您阅读后的感受,谢谢合作...

题目中比较吸引人的就是关于ionic liquid 的reuse,这方面还是很吸引人的...说说您的看法了...

[ Last edited by berlin on 2006-11-26 at 14:51 ]
2楼2006-11-26 11:51:33
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nanohp3楼
2006-11-26 14:46   回复  
[ Last edited by nanohp on 2006-11-26 at 18:41 ]
berlin4楼
2006-11-26 14:53   回复  
 
vutzisen5楼
2006-11-26 18:04   回复  
 
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