Title:
含フッ素ケトンの製造方法
Document Type and Number:
Japanese Patent JP4934939
Kind Code:
B2
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: RCOOCHRR RCOOCFRR RRC=O wherein each of R and R are each a monovalent organic group such as an alkyl group, or R and R may be bonded to each other to form a bivalent organic group such as an alkylene group, R and R are a monovalent organic group such as a perfluoroalkyl group formed by fluorination of R and R, or they are bonded to each other to form a bivalent organic group such as a perfluoroalkylene group, and R and R are each a monovalent organic group such as a perfluoroalkyl group which may contain an etheric oxygen atom.
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Inventors:
Takashi Okazoe
Kunio Watanabe
Masahiro Ito
Daisuke Shirakawa
Shin Tatematsu
Yoichi Takagi
Kunio Watanabe
Masahiro Ito
Daisuke Shirakawa
Shin Tatematsu
Yoichi Takagi
Application Number:
JP2002523432A
Publication Date:
May 23, 2012
Filing Date:
August 30, 2001
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
C07C45/51; C07C45/54; C07C49/167; C07C51/09; C07C51/58; C07C59/135; C07C67/287; C07C69/708; C07D317/18; C07D317/42; C07D319/04; C07B61/00
Domestic Patent References:
JPH0977710A | 1997-03-25 | |||
JPH02191233A | 1990-07-27 |
Foreign References:
US3350464A | 1967-10-31 | |||
US5466877A | 1995-11-14 | |||
US3900372A | 1975-08-19 |
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Hironori Honda
Toshimitsu Ichikawa