Carbonyl compounds methyltrioxorhenium

Under the name Oxone an oxidation agent has been introduced, consisting of KHSO4-K2SO4-2KHSO5. Solid Oxone converts methylenic functions under anhydrous, biphasic conditions to carbonyl compounds under the catalytic influence of ligand-modified Mn porphyrins and phase-transfer catalysts (e. g., acetophenone is obtained from ethylbenzene). In the case of cyelohexane, e-caprolactone results as well as cyclohexanol and -one ([219 b, 241] cf. also Baeyer-Villiger oxidation). Biphasic oxidations with methyltrioxorhenium (e. g., to epoxides) are reviewed in Section 3.3.13 [244 i]. 

Jain SL, Sharma VB, Sain B (2006) Methyltrioxorhenium and sodium bromide-catalyzed oxidation of alcohols to carbonyl compounds with using l-butyl-3-methylimidazolium tetrafluo-roborate ionic liquid as a novel recyclable green solvent. Bull Chem Soc Jpn 79 1601-1603... 

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