Title:
METHOD FOR TRANSFORMING A 1,2-DISUBSTITUTED EPOXIDE CYCLE INTO ITS ALPHA-DIKETONE DERIVATIVE
Document Type and Number:
WIPO Patent Application WO2003022789
Kind Code:
A3
Abstract:
The invention concerns a method for transforming a 1,2-disubstituted epoxide cycle into its alpha -diketone derivative, characterized in that it consists in oxidizing said cycle in the presence of at least an efficient amount of a bismuth salt and/or any compound capable of generating same in situ and of an activator for opening said cycle.
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Inventors:
DUNACH-CLINET ISABEL (FR)
Application Number:
PCT/FR2002/003117
Publication Date:
November 27, 2003
Filing Date:
September 12, 2002
Export Citation:
Assignee:
RHODIA CHIMIE SA (FR)
DUNACH-CLINET ISABEL (FR)
ANTONIOTTI SYLVAIN (FR)
DUNACH-CLINET ISABEL (FR)
ANTONIOTTI SYLVAIN (FR)
International Classes:
C07C45/58; C07C49/647; (IPC1-7): C07C45/58; C07C49/647
Other References:
ZEVACO, THOMAS ET AL: "Bismuth (III)-mandelate/DMSO: a new oxidizing system for the catalyzed carbon-carbon cleavage of epoxides", TETRAHEDRON LETT. (1993), 34(16), 2601-4, XP002198770
LE BOISSELIER, VERONIQUE ET AL: "BiBr3-catalyzed formation of cyclic carbonates from epoxides and DMF: a new oxidation reaction with molecular oxygen", CHEM. COMMUN. (CAMBRIDGE) (1997), (1), 95-96, XP002198771
TROST, BARRY M. ET AL: "Studies directed toward taxanes. Preparation of.alpha.-ketols by oxidative ring-opening of epoxides", TETRAHEDRON LETT. (1988), 29(18), 2163-6, XP002198772
LE BOISSELIER, VERONIQUE ET AL: "BiBr3-catalyzed formation of cyclic carbonates from epoxides and DMF: a new oxidation reaction with molecular oxygen", CHEM. COMMUN. (CAMBRIDGE) (1997), (1), 95-96, XP002198771
TROST, BARRY M. ET AL: "Studies directed toward taxanes. Preparation of.alpha.-ketols by oxidative ring-opening of epoxides", TETRAHEDRON LETT. (1988), 29(18), 2163-6, XP002198772
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