| 摘要 |
The present invention provides a process whereby fluorine atom-containing sulfonyl fluoride compound(s) useful as e.g. materials for ion-exchange membranes, can be produced efficiently and at low cost without structural limitations while solving the difficulties in production. Namely, the present invention provides a process which comprises reacting XSO2R<A>-E<1 >(1) with R<B>-E<2 >(2) to form XSO2R<A>-E-R<B >(3), then reacting (3) with fluorine in a liquid phase to form FSO2R<AF>-E<F>-R<BF >(4), and further, decomposing the compound to obtain FSO2R<AF>-E<F1 >(5), wherein R<A >is a bivalent organic group, E<1 >is a monovalent reactive group, R<B >is a monovalent organic group, E<2 >is a monovalent reactive group which is reactive with E<1>, E is a bivalent connecting group formed by the reaction of E<1 >with E<2>, R<AF >is a bivalent organic group formed by the fluorination of R<A>, etc., R<BF >is the same group as R<B>, etc., E<F >is a bivalent connecting group formed by the fluorination of E, etc., E<F1 >is a monovalent group formed by the decomposition of E<F>, and X is a halogen atom.
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