69087-46-3Relevant academic research and scientific papers
Method of chlorination of end of fluorine-containing compound
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Page column 5, (2008/06/13)
There is provided a method of end-chlorination of a fluorine-containing compound which can easily provide a fluorine-containing monomer having a functional group such as nitrile group at relatively low cost. The method of chlorinating an end of a fluorine-containing compound having iodine atom at an end thereof comprises reacting a fluorine-containing organic compound having iodine atom at a molecular end thereof and represented by the formula (I): RfCX2I??(I) wherein Rf is an organic residue having fluorine atom, X is hydrogen atom or chlorine atom, with a chlorine gas at a temperature of from 150° C. to 180° C. under irradiation with light to cleave the C—I bond and replace iodine atom with chlorine atom.
Alkyl perfluoro-ω-fluoroformyl esters and monomers therefrom
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, (2008/06/13)
Alkyl perfluoro-ω-fluoroformyl esters are provided which have the formula STR1 wherein R is alkyl of 1-6 carbon atoms, and N IS 0-6 (PREFERABLY 0). Compounds where n is 0 are prepared by contacting SO3 with a compound of the formula Compounds where n is 1-6 are prepared by contacting a compound where n is 0 with hexafluoropropylene oxide. Also provided are polymerizable monomers having the formula STR2 wherein Y is --COOR, --COOH, --COOM or --CN, where M is an alkali metal, ammonium or quaternary ammonium and p is 1-5, prepared from alkyl perfluoro-ω-fluoroformyl esters of this invention.
Alkyl perfluoro-ω-fluoroformyl esters and their preparation
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, (2008/06/13)
Alkyl perfluoro-ω-fluoroformyl esters are provided which have the formula: STR1 wherein R is alkyl of 1-6 carbon atoms, and n is 0-6 (preferably 0). Compounds where n is 0 are prepared by contacting SO3 with a compound of the formula ROOC--CF2 --CF2 --OR1. Compounds where n is 1-6 are prepared by contacting a compound where n is 0 with hexafluoropropylene oxide.
