JPS56138127A - Preparation of hexafluoroisobutene - Google Patents
Preparation of hexafluoroisobuteneInfo
- Publication number
- JPS56138127A JPS56138127A JP4235880A JP4235880A JPS56138127A JP S56138127 A JPS56138127 A JP S56138127A JP 4235880 A JP4235880 A JP 4235880A JP 4235880 A JP4235880 A JP 4235880A JP S56138127 A JPS56138127 A JP S56138127A
- Authority
- JP
- Japan
- Prior art keywords
- lower alkyl
- formula
- alkyl ether
- give
- sulfuric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To obtain the titled compound inexpensively and industrially advantageously, by dehydrofluorinating an inexpensive and readily obtainable octafluoroisobutyl lower alkyl ether as a raw material, followed by reduction, conversion to a sulfuric ester, and treatment with a base.
CONSTITUTION: An octafluoroisobutyl lower alkyl ether shown by the formula I (R is lower alkyl) as a raw material is dehydrofluorinated with an M1OH (M1 is alkali metal group), etc., to give a heptafluoroisobutenyl lower alkyl ether shown by the formula II. This compound is reduced to give a hexafluoroisobutyl lower alkyl ether shown by the formula III, which is converted by sulfuric anhydride, etc. into a sulfuric (hexafluoroisobutyl) lower alkyl ester shown by the formula IV. This compound is treated with a base, to give hexafluoroisobutene shown by the formula V.
USE: A comonomer for heat-resistant copolymer obtained from it and vinylidene fluoride, and modifier for the copolymer.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4235880A JPS56138127A (en) | 1980-03-31 | 1980-03-31 | Preparation of hexafluoroisobutene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4235880A JPS56138127A (en) | 1980-03-31 | 1980-03-31 | Preparation of hexafluoroisobutene |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56138127A true JPS56138127A (en) | 1981-10-28 |
JPS5761333B2 JPS5761333B2 (en) | 1982-12-23 |
Family
ID=12633803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4235880A Granted JPS56138127A (en) | 1980-03-31 | 1980-03-31 | Preparation of hexafluoroisobutene |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56138127A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002062749A1 (en) * | 2001-02-01 | 2002-08-15 | Asahi Kasei Kabushiki Kaisha | Perfluorovinyl ether monomer having sulfonamide group |
US6849194B2 (en) | 2000-11-17 | 2005-02-01 | Pcbu Services, Inc. | Methods for preparing ethers, ether compositions, fluoroether fire extinguishing systems, mixtures and methods |
-
1980
- 1980-03-31 JP JP4235880A patent/JPS56138127A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6849194B2 (en) | 2000-11-17 | 2005-02-01 | Pcbu Services, Inc. | Methods for preparing ethers, ether compositions, fluoroether fire extinguishing systems, mixtures and methods |
WO2002062749A1 (en) * | 2001-02-01 | 2002-08-15 | Asahi Kasei Kabushiki Kaisha | Perfluorovinyl ether monomer having sulfonamide group |
Also Published As
Publication number | Publication date |
---|---|
JPS5761333B2 (en) | 1982-12-23 |
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