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Patent Searching and Data


Title:
NEW BIFUNCTIONAL PERFLUORO COMPOUND AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JPH03236367
Kind Code:
A
Abstract:

NEW MATERIAL:Perfluoroalkane sulfonyl fluoride iodide expressed by formula I (n is 2-5).

EXAMPLE: 1-tetrafluoroethane sulfonyl fluoride iodide.

USE: Useful as a synthetic intermediate of surfactant, agricultural chemical, medical drug or a fluorine-containing product such as fluorine-based ionomer, or a raw material for iodine optical dissociation laser, etc.

PREPARATION: Perfluorocarboxylic acid fluoride expressed by formula II is reacted with lithium iodide at 100-300°C, preferably 150-230°C to afford the compound expressed by formula I. Said lithium iodide is preferably anhydride and using amount of said lithium iodide is preferably stoichiometric amount or a little excess amount of the stoichiometric amount. Besides, e.g. ω-(fluorosulfonyl) perfluorocarboxylic acid fluoride or perfluoro-β-sultone is used as a starting raw material.


Inventors:
ABE TAKASHI
HAYASHI EIJI
FUKAYA HARUHIKO
Application Number:
JP1990000030916
Publication Date:
October 22, 1991
Filing Date:
February 09, 1990
Export Citation:
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Assignee:
AGENCY IND SCIENCE TECHN
International Classes:
C07C303/02; C07C303/22; C07C309/80; (IPC1-7): C07C303/02; C07C303/22; C07C309/80