期刊
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES
卷 12, 期 2, 页码 94-100出版社
WORLD SCI PUBL CO INC
DOI: 10.1142/S1088424608000121
关键词
Baeyer-Villiger oxidation; metalloporphyrin; ketone; dioxygen
Efficient selective oxidation of ketones to lactones by molecular oxygen with benzaldehyde as an oxygen acceptor, in the presence of metalloporphyrins, has been reported. Iron(III) meso-tetraphenylporphyrin chloride (Fe(TPP)Cl) showed excellent activity and selectivity for oxidation of cyclohexanones under mild conditions. Moreover, different factors influencing ketones oxidation, e.g. catalyst, solvent, temperature and additive, have been investigated. The turnover number (TON) of the Fe(TPP)Cl catalyst could reach up to 71000 in a large scale oxidation of cyclohexanone. A plausible mechanism of ketone oxidation by molecular oxygen in the presence of metalloporphyrins and benzaldehyde was proposed. Copyright (C) 2008 Society of Porphyrins & Phthalocyanines.
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