Journal
CATALYSIS COMMUNICATIONS
Volume 10, Issue 6, Pages 1025-1028Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2008.12.053
Keywords
Solvent-free oxidation; Benzylic oxidation; Chromium mesoporous molecular sieve catalyst; Molecular oxygen
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Funding
- Japan Society for the Promotion of Science (JSPS)
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Solvent-free selective oxidation of benzylic compounds was effectively performed over chromium containing mesoporous molecular sieve (CrMCM-41) catalyst at 1 atm O-2 under mild reaction conditions (<100 degrees C) . A variety of benzylic compounds such as cycloalkyl (tetralin, indane, diphenylmethane and fluorene) and alkylbenzenes (e.g., ethylbenzene, propylbenzene and n-butylbenzene) were studied. These compounds were selectively oxidized giving the corresponding benzylic ketones with excellent selectivity (82-98%) and good yield (23-60%). Under these solvent-free reaction conditions without the use of hydroperoxide oxidant, catalyst can be recycled. (C) 2009 Elsevier B.V. All rights reserved.
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