Process for producing fluorinated ketone

Details Process for producing fluorinated ketone Process for producing fluorinated ketone

2005-11-29

2005-11-29

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S348000, C568S354000, C568S364000, C568S391000, C568S393000, C568S600000, C568S604000, C562S849000, C562S852000

Reexamination Certificate

active

06969776

ABSTRACT:
The present invention provides a process whereby fluorinated ketones of various structures can be produced by short process steps and which is useful as an industrial production process.Namely, it is a process for producing a fluorinated ketone of the following formula (5), which comprises reacting a compound of the following formula (3) having a fluorine content of at least 30 mass %, with fluorine in a liquid phase to obtain a compound of the following formula (4), and then, subjecting the ester linkage of the compound of the formula (4) to a dissociation reaction:in-line-formulae description="In-line Formulae" end="lead"?RCCOOCHRARB  (3)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?RCFCOOCFRAFRBF  (4)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?RAFRBFC═O  (5)in-line-formulae description="In-line Formulae" end="tail"?wherein each of RAand RAFare each a monovalent organic group such as an alkyl group, or RAand RBmay be bonded to each other to form a bivalent organic group such as an alkylene group, RAFand RBFare a monovalent organic group such as a perfluoroalkyl group formed by fluorination of RAand RB, or they are bonded to each other to form a bivalent organic group such as a perfluoroalkylene group, and RCand RCFare each a monovalent organic group such as a perfluoroalkyl group which may contain an etheric oxygen atom.

REFERENCES:
patent: 3900372 (1975-08-01), Childs et al.
patent: 5093432 (1992-03-01), Bierschenk et al.
patent: 5322903 (1994-06-01), Bierschenk et al.
patent: 5466877 (1995-11-01), Moore
patent: 6255536 (2001-07-01), Worm et al.
patent: 0 062 430 (1982-10-01), None
patent: 0 150 618 (1985-08-01), None
patent: 52-010221 (1977-01-01), None
patent: 2-311438 (1990-12-01), None
patent: 2001-139509 (2001-05-01), None
patent: WO 95/25082 (1995-09-01), None
patent: WO 00/56694 (2000-09-01), None
patent: WO 02/10107 (2002-02-01), None
patent: WO 02/10108 (2002-02-01), None
patent: WO 02/44138 (2002-06-01), None
patent: WO 02/055471 (2002-07-01), None
Koichi Murata et al, “The Thermal Decomposition of Perfluoroesters,”J. AM. Chem. Soc., 1998, 120, 7118.
Tatarinova, E. L., et al. “Reaction of hexafluoropropene oxide dimer with water and alcohols”, Database accession No. 1993:212088, XP002323680.
Tatarinova, E. L., et al. “Reaction of hexafluoropropene oxide trimer with water and alcohols”, Database accession No. 1993:59265, XP002323681.

Affiliated with

Also associated with

Rating

Process for producing fluorinated ketone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing fluorinated ketone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing fluorinated ketone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3518992