Title:
PROCESS FOR PRODUCING FLUORINATED DICARBONYL COMPOUND
Document Type and Number:
WIPO Patent Application WO/1994/010120
Kind Code:
A1
Abstract:
An industrial process for producing a fluorinated dicarbonyl compound in a high yield, wherein a dicarbonyl compound represented by the general formula R1COCHR2COR3 (wherein R1 represents hydrogen, halogen, or (un)substituted alkyl or aryl; R2 represents hydrogen, halogen, or (un)substituted alkyl or aryl; and R3 represents hydrogen, or (un)substituted alkyl, aryl, alkoxy or aryloxy, provided at least two groups selected from among R1, R2 and R3 may be combined together to form a part of a cyclic structure which may contain a heteroatom) is reacted with fluorine (F2) either in at least one solvent selected from the group consisting of C1-C5 halogenated hydrocarbons and nitrile compounds or in a solvent in the presence of a salt or an acid with a pKa value of 6 or less to give a fluorinated derivative represented by the general formula R1COCFR2COR3 (wherein R1, R2 and R3 are each as defined above).
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Inventors:
UMEMOTO TERUO (JP)
TOMIZAWA GINJIRO (JP)
TOMIZAWA GINJIRO (JP)
Application Number:
PCT/JP1993/001584
Publication Date:
May 11, 1994
Filing Date:
November 01, 1993
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
UMEMOTO TERUO (JP)
TOMIZAWA GINJIRO (JP)
UMEMOTO TERUO (JP)
TOMIZAWA GINJIRO (JP)
International Classes:
C07B39/00; C07C45/63; C07C49/457; C07C49/463; C07C49/813; C07C67/307; C07C205/43; C07C205/45; (IPC1-7): C07C45/63; C07C49/463; C07C49/80; C07C69/716; C07C67/307
Other References:
PURRINGTON T. ET AL: "Selective monofluorination of beta-diketones.", JOURNAL OF ORGANIC CHEMISTRY, vol. 52, no. 19, 1987, pages 4307 - 4310, XP002029446, DOI: doi:10.1021/jo00228a029
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