Title:
REAGENT AND PROCESS FOR SYNTHESIS OF OXYSULPHIDIE-CONTAINING FLUORINE-CONTAINING ORGANIC DERIVATIVE
Document Type and Number:
Japanese Patent JP3933723
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a reagent which is useful for the synthesis of oxysulphide- containing fluorine-containing organic derivatives and which is more environmentally friendly and capable of giving the desired products with a satisfactory yield, and to provide a method for the synthesis of the oxysulphide-containing fluorine-containing organic derivatives.
SOLUTION: This reagent is useful for the synthesis of oxysulphide-containing fluorine-containing organic derivatives by reacting with an oxide of sulphur, especially sulphur dioxide. The reagent comprises (a) a fluorocarboxylic acid of the formula: EW-CF2-COOH (EW is an electron-withdrawing group or atom) which is at least partially salified by an organic or inorganic cation, and (b) an aprotic polar solvent, and in the reagent, the content of releasable protons carried by its various components, including their impurities, is at most equal to half the initial molar concentration of the fluorocarboxylic acid.
Inventors:
Gerard Fora
Jean Manuel Ma
Loran Sanjarum
Jean Manuel Ma
Loran Sanjarum
Application Number:
JP9295996A
Publication Date:
June 20, 2007
Filing Date:
March 25, 1996
Export Citation:
Assignee:
RHONE-POULENC CHIMIE
International Classes:
C07B45/04; C07C303/14; C07C303/02; C07C309/06; C07C309/39; C07C309/80; C07C313/02; C07C313/04; (IPC1-7): C07B45/04; C07C303/02; C07C309/06; C07C313/02; C07C313/04
Domestic Patent References:
| JP2042054A | ||||
| JP45015014B1 | ||||
| JP48023728A | ||||
| JP61010529A |
Foreign References:
| US4990699 |
Attorney, Agent or Firm:
Motohiro Kurauchi
Hiroshi Kazama
Hiroshi Kazama
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