Free radical reaction promoted by ionic liquid: a route for metal-free oxidation depolymerization of lignin model compound and lignin

Ionic liquid 1-benzyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BnMIm][NTf2]) can promote the generation of the ˙OOH free radical and thereby efficiently transformed the β-O-4 lignin model compound 2-phenoxyacetophenone into benzoic acid and phenol using O2 as the oxidant. Furthermore,...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2015-03, Vol.51 (19), p.4028-4031
Main Authors: Yang, Yingying, Fan, Honglei, Song, Jinliang, Meng, Qinglei, Zhou, Huacong, Wu, Lingqiao, Yang, Guanying, Han, Buxing
Format: Article
Language:English
Subjects:
Benzoic Acid - chemistry
Catalysis
Catalysts
Depolymerization
Free radicals
Free Radicals - chemistry
Ionic liquids
Ionic Liquids - chemistry
Lignin - chemistry
Oxidants
Oxidation-Reduction
Phenol
Phenol - chemistry
Polymerization
System effectiveness
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Summary:Ionic liquid 1-benzyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BnMIm][NTf2]) can promote the generation of the ˙OOH free radical and thereby efficiently transformed the β-O-4 lignin model compound 2-phenoxyacetophenone into benzoic acid and phenol using O2 as the oxidant. Furthermore, the IL-based metal-free catalytic system can also depolymerize other lignin model compounds and organosolv lignin effectively.
ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc10394g