Title:
PRODUCTION OF ALKENONES
Document Type and Number:
WIPO Patent Application WO2003066558
Kind Code:
A3
Abstract:
Halogen alkenone ether can be produced by attaching carbonic acid halogenides or carbonic acid anhydrides to a vinyl ether. The aim of the invention is to improve said process by producing haloalkenone ether in the presence of an onium salt of a carbonic acid, which can be regenerated. The resulting product has a great yield. As an alternative, pyridine which is substituted by one, two, or three C1-C3-alkyl groups or other onium salts can be used.
Inventors:
BRAUN MAX (DE)
CLAASSEN UTA (DE)
CLAASSEN UTA (DE)
Application Number:
PCT/EP2003/000913
Publication Date:
December 31, 2003
Filing Date:
January 30, 2003
Export Citation:
Assignee:
SOLVAY FLUOR & DERIVATE (DE)
BRAUN MAX (DE)
CLAASSEN UTA (DE)
BRAUN MAX (DE)
CLAASSEN UTA (DE)
International Classes:
C07B61/00; C07C45/45; C07C45/41; C07C49/255; C07D213/18; (IPC1-7): C07C45/45; C07D213/18
Foreign References:
| EP0744400A2 | 1996-11-27 | |||
| EP0623582A2 | 1994-11-09 | |||
| GB2305174A | 1997-04-02 | |||
| EP0893426A1 | 1999-01-27 |
Other References:
BUBACK M ET AL: "DIASTEREOSELECTIVITY AND KINETICS OF INTERMOLECULAR HETERO DIELS-ALDER REACTIONS UNDER HIGH PRESSURE. A SIGNIFICANT PRESSURE-INDUCED INCREASE IN STEREOSELECTIVITY INTER- AND INTRAMOLECULAR HETERO DIELS-ALDER REACTIONS, PART XXVI", CHEMISCHE BERICHTE, VERLAG CHEMIE GMBH. WEINHEIM, DE, vol. 122, 1989, pages 1179 - 1186, XP000196309, ISSN: 0009-2940
BONNER T G ET AL.: "Acyl Trifluoroacetates. Part IV. Trifluoroacetylation of Hydroxy-compounds with Trifluoroacetic Anhydride", JOURNAL OF THE CHEMICAL SOCIETY SECTION B, vol. 1968, no. 2, 1968, pages 114 - 118, XP009013071
SLEEVI P ET AL.: "Trifluoroacetyl Chloride for Characterisation of Organic Functional Groups by Fluorine-19 Nuclear Magnetic Resonance Sprectrometry", ANALYTICAL CHEMISTRY, vol. 51, no. 12, 1979, pages 1931 - 1934, XP001152992
BONNER T G ET AL.: "Acyl Trifluoroacetates. Part IV. Trifluoroacetylation of Hydroxy-compounds with Trifluoroacetic Anhydride", JOURNAL OF THE CHEMICAL SOCIETY SECTION B, vol. 1968, no. 2, 1968, pages 114 - 118, XP009013071
SLEEVI P ET AL.: "Trifluoroacetyl Chloride for Characterisation of Organic Functional Groups by Fluorine-19 Nuclear Magnetic Resonance Sprectrometry", ANALYTICAL CHEMISTRY, vol. 51, no. 12, 1979, pages 1931 - 1934, XP001152992
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