Method for preparing sulfone or sulfoxide compound
AssigneeSumitomo Chemical Company, Limited
InventorsJun Oguma, Koji Hagiya, Takashi Miyawaki
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Abstract
There is provided a method for preparing a sulfone or sulfoxide compound, characterized in that a sulfide compound is allowed to react with hydrogen peroxide in the presence of a metal oxide catalyst formed by the reaction of hydrogen peroxide with at least one metal or metal compound selected from tungsten metal; molybdenum metal; a tungsten compound comprising tungsten and a Group IIIb, IVb, Vb, or VIb element exclusive of oxygen; and a molybdenum compound comprising molybdenum and a Group IIIb, IVb, Vb, or VIb element exclusive of oxygen.
Claims10
A method for preparing a sulfone compound, which consists of reacting
- a sulfide compound with hydrogen peroxide in the presence of
- a metal oxide catalyst obtained by reacting hydrogen peroxide with at least one metal or metal compound selected from the aroup consisting of
- a) tungsten metal,
- b) molybdenum metal,
- c) a tungsten compound comprising
- i) tungsten and
- ii) an element of a Group IVb, Vb, or VIb excluding oxygen, and
- d) a molybdenum compound comprising
- iii) molybdenum and
- iv) an element of Group IVb, Vb, or VIb, excluding oxygen, and optionally a phase-transfer catalyst.
A method for preparing a sulfone compound, which consists of reacting
- a sulfide compound with hydrogen peroxide in the presence of a metal oxide catalyst obtained by reacting hydrogen peroxide with at least one metal or metal compound selected from the aroup consisting of
- a) tungsten metal,
- b) molybdenum metal,
- c) a tungsten compound comprising
- i) tungsten and
- ii) an element of a Group IVb, Vb, or VIb excluding oxygen, and
- d) a molybdenum compound comprising
- i) molybdenum, and
- ii) an element of Group IVb, Vb, or VIb excluding oxygen, and optionally a phase-transfer catalyst,
- wherein the hydrogen peroxide is used in an amount of at least 1.5 moles per mol of the sulfide compound.
Dependencies are inferred from the claim text.