Liquid phase oxidation of 4-methylanisole to 2-methoxy-5-methyl-1,4-benzoquinone over Cu/MCM-41

The oxidation of 4-methylanisole (MA) to 2-methoxy-5-methyl-1,4-benzoquinone (MMBQ) in acetic acid using H 2O 2 as oxidant over Cu/MCM-41 was studied for the first time. Efficient conversion rate of MA (81%) and reasonable selectivity of MMBQ (78%) was obtained. Fast hot catalyst filtration experime...

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Bibliographic Details
Published in:Catalysis communications 2009-06, Vol.10 (12), p.1599-1603
Main Authors: Li, Bin, Wang, Jiliang, Li, Junjie, Xu, Yonghua, Fu, Jipin, Yao, Wenhua, Zi, Guoli, Wang, Wei, Wang, Jiaqiang
Format: Article
Language:English
Subjects:
2-Methoxy-5-methyl-1,4-benzoquinone
4-Methylanisole
Cu/MCM-41
Selective oxidation
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Summary:The oxidation of 4-methylanisole (MA) to 2-methoxy-5-methyl-1,4-benzoquinone (MMBQ) in acetic acid using H 2O 2 as oxidant over Cu/MCM-41 was studied for the first time. Efficient conversion rate of MA (81%) and reasonable selectivity of MMBQ (78%) was obtained. Fast hot catalyst filtration experiment proved that Cu/MCM-41 acted as a heterogeneous catalyst and it can be reused a number of times with almost the same activity.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2009.04.026