Oxidation of thiols employing cobalt molybdate/triethylamine catalyst
AssigneePhillips Petroleum Company
InventorDonald H. Kubicek
Life of this patent
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Abstract
A thiol is oxidized to a corresponding disulfide employing a supported cobalt molybdate catalyst in combination with a liquid tertiary amine. 2-propanethiol is converted to diisopropyl disulfide with conversions of the order of 94% and selectivities of the order of 98%.
Claims7
A process for the conversion of a thiol represented by the formula ##STR2## wherein R, R.sup.1, and R.sup.2 can be hydrogen, alkyl, or cycloalkyl containing from 1 to 20 carbon atoms, R and R.sup.1 taken together can be an alkylene radical having from 5 to 10 carbon atoms to a corresponding disulfide which comprises subjecting the same to oxidation conditions including air or oxygen-containing gas in the presence of a cobalt oxide molybdenum oxide catalyst on a support and a liquid tertiary amine represented by the formula
- (R.sup.3).sub.3 N
- where R.sup.3 can be any alkyl radical having 1 to 6 carbon atoms.
Dependencies are inferred from the claim text.