Title:
PROCESS FOR PRODUCING &agr -OXOCARBONYL COMPOUND
Document Type and Number:
WIPO Patent Application WO/2005/113477
Kind Code:
A1
Abstract:
A process by which an &agr -oxocarbonyl compound useful as an intermediate for medicines/agricultural chemicals can be industrially advantageously and efficiently produced in a high yield. The process, which is for producing an &agr -oxocarbonyl compound represented by the following general formula (I): (wherein R1 and R2 are the same as defined in the description), is characterized by oxidizing an &agr -hydroxycarbonyl compound represented by the following general formula (II): with oxygen or the surrounding air in the presence of a carboxylic acid and at least one vanadium compound selected among divanadium pentaoxide, divanadium trioxide, divanadium tetraoxide, ammonium metavanadate, sodium metavanadate, potassium metavanadate, triethoxyoxyvanadium, tripropoxyoxyvanadium, triisopropoxyoxyvanadium, vanadium oxydiacetylacetonate, and vanadium triacetylacetonate.
Inventors:
OKABE FUMIHIKO (JP)
MATSUDA HIDEKI (JP)
YAMAGUCHI TAKASHI (JP)
MATSUDA HIDEKI (JP)
YAMAGUCHI TAKASHI (JP)
Application Number:
PCT/JP2005/009040
Publication Date:
December 01, 2005
Filing Date:
May 18, 2005
Export Citation:
Assignee:
KURARAY CO (JP)
OKABE FUMIHIKO (JP)
MATSUDA HIDEKI (JP)
YAMAGUCHI TAKASHI (JP)
OKABE FUMIHIKO (JP)
MATSUDA HIDEKI (JP)
YAMAGUCHI TAKASHI (JP)
International Classes:
C07C45/39; C07C49/76; C07C67/313; C07C67/54; C07C69/716; C07C69/738; (IPC1-7): C07C45/39; C07C49/76; C07C67/313; C07C67/54; C07C69/716; C07C69/738
Foreign References:
| JP2001031616A | 2001-02-06 | |||
| JPH0517404A | 1993-01-26 | |||
| JPH06247896A | 1994-09-06 |
Other References:
VELUSAMY S. AND PUNNIYAMURTY T. ET AL.: "Subbarayan et al., Novel Vanadium-Catalyzed Oxidation of Alcohols to Aldehydes and Ketones under Atmospheric Oxygen.", ORGANIC LETTERS., vol. 6, no. 2, 2004, pages 217 - 219, XP002991311
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