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Liquid phase selective oxidation of diphenylmethane to benzophenone over ternary hydrotalcites with tert-butylhydroperoxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
51337 46839 2009 4 PDF Available
Title
Liquid phase selective oxidation of diphenylmethane to benzophenone over ternary hydrotalcites with tert-butylhydroperoxide
Abstract

Selective oxidation of diphenylmethane to benzophenone was carried out over M–MgAl ternary hydrotalcites, where M is Cu, Co or Fe, using tert-butylhydroperoxide (TBHP) as an oxidant. Influence of various reaction parameters, such as reaction temperature, reaction time, substrate: catalyst mass ratio, substrate: oxidant mole ratio and nature of solvent on the activity and selectivity for the desired reaction were evaluated. Among the catalysts studied CuMgAl-13 showed a maximum diphenylmethane conversion of 95% with 100% selectivity towards benzophenone, at 65 oC/24 h with TBHP as an oxidant and acetonitrile as a solvent. Redox metal species present in the hydrotalcite structure were thought to be the active centers involved and a reaction mechanism involving free radicals was proposed.

Keywords
Selective oxidation; Diphenylmethane; Benzophenone; Ternary hydrotalcites; tert-Butylhydroperoxide; Redox metal
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Liquid phase selective oxidation of diphenylmethane to benzophenone over ternary hydrotalcites with tert-butylhydroperoxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 8, 30 March 2009, Pages 1212–1215
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us