Fluorosulfonyl group-containing compound, fluorosulfonyl group-containing monomer, and their production methods
AssigneeAGC Inc.
InventorsTakeshi Hirai, Daisuke Jomuta, Chikaya Tamitsuji
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Abstract
A method for producing a fluorosulfonyl group-containing compound to obtain a compound represented by the following formula 5 from a compound represented by the following formula 1 as a starting material and a method for producing a fluorosulfonyl group-containing monomer in which the fluorosulfonyl group-containing compound is used: wherein R1 and R2 are a C1-3 alkylene group, and RF1 and RF2 are a C1-3 perfluoroalkylene group.
Claims10
A method for producing a fluorosulfonyl group-containing compound, which comprises:
- reacting a compound represented by the following formula 1 with a sulfonating agent to obtain a compound represented by the following formula 2,
- reacting the compound represented by the following formula 2 with a chlorinating agent to obtain a compound represented by the following formula 3,
- reacting the compound represented by the following formula 3 with a fluorinating agent to obtain a compound represented by the following formula 4, and
- subjecting the compound represented by the following formula 4 to fluorination treatment to obtain a compound represented by the following formula 5:
- wherein R1 and R2 are a C1-3 alkylene group, and RF1 and RF2 are a C1-3 perfluoroalkylene group.
A method for producing a fluorosulfonyl group-containing monomer, which comprises reacting a compound represented by the following formula 5 with a perfluoroallylating agent to obtain a compound represented by the following formula 7:
- wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.
A method for producing a fluorosulfonyl group-containing monomer, which comprises adding 2 moles of hexafluoropropylene oxide to 1 mole of a compound represented by the following formula 5 in the presence of a metal fluoride to obtain a compound represented by the following formula 8a, and thermally decomposing the compound represented by the following formula 8a to obtain a compound represented by the following formula 9a:
- wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.
A method for producing a fluorosulfonyl group-containing monomer, which comprises adding 1 mole of hexafluoropropylene oxide to 1 mole of a compound represented by the following formula 5 in the presence of a metal fluoride to obtain a compound represented by the following formula 8b, and thermally decomposing the compound represented by the following formula 8b to obtain a compound represented by the following formula 10:
- wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.
A fluorosulfonyl group-containing compound, which is either one or both of a compound represented by the following formula 5 and a compound represented by the following formula 5′:
- wherein RF1 and RF2 are a CF2 group.
A fluorosulfonyl group-containing monomer, which is a compound represented by the following formula 7:
- wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.
A fluorosulfonyl group-containing monomer, which is a compound represented by the following formula 10:
- wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.
Dependencies are inferred from the claim text.