Novel acidic ionic liquids mediated zinc chloride: Highly effective catalysts for the Beckmann rearrangement

A mild, efficient, and eco-friendly procedure for Beckmann rearrangement was catalyzed by a series of novel Brønsted acidic ionic liquids (ILs) consisiting double –SO 3H cations mediated zinc chloride (ILs–ZnCl 2) catalytic system. High yields of amides were achieved by using 5 mol.% of ILs–ZnCl 2 c...

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Bibliographic Details
Published inCatalysis communications Vol. 10; no. 5; pp. 424 - 427
Main Authors Liu, Xiaofei, Xiao, Linfei, Wu, Hugjiltu, Li, Zhen, Chen, Jing, Xia, Chungu
Format Journal Article
LanguageEnglish
Published AMSTERDAM Elsevier B.V 01.01.2009
Elsevier
Subjects
Acidic ionic liquid
Beckmann rearrangement
Chemistry
Chemistry, Physical
Oxime
Physical Sciences
Science & Technology
Acidic ionic liquid
Oxime
Beckmann rearrangement
EPSILON-CAPROLACTAM
SUPERCRITICAL WATER
KETOXIMES
CYCLOHEXANONE-OXIME
NONCATALYTIC BECKMANN
EFFICIENT
SOLVENT
METABORIC ACID
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Summary:A mild, efficient, and eco-friendly procedure for Beckmann rearrangement was catalyzed by a series of novel Brønsted acidic ionic liquids (ILs) consisiting double –SO 3H cations mediated zinc chloride (ILs–ZnCl 2) catalytic system. High yields of amides were achieved by using 5 mol.% of ILs–ZnCl 2 catalysts. In addition, the catalyst system could be recycled and reused for three times.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2008.09.007