FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing perfluoro-3-oxa-pentene-sulphonyl fluoride, used as a comonomer when producing polymers used to produce ion-exchange membranes, fuel cells and electrolysis apparatus. The method is carried out via chlorination of perfluoro-3-oxa-pentene-sulphonamide in the medium of an aprotic solvent (diglyme, tetraglyme) with a chlorinating agent, followed by fluorination of the formed perfluoro-3-oxa-pentene-sulphonyl chloride with an alkali metal fluoride in a polar aprotic solvent (sulpholane, acetonitrile) and separating the end product.
EFFECT: novel method of producing perfluoro-3-oxa-pentene-sulphonyl fluoride with high output and purity from readily available material.
5 cl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING PERFLUORO-4-(FLUOROSULFONYL)BUTYLVINYL ETHER | 2022 |
|
RU2800857C1 |
| COMPOUND CONTAINING FLUOROSULFONYL GROUP, MONOMER CONTAINING FLUOROSULFONYL GROUP, AND METHODS FOR THEIR PRODUCTION | 2018 |
|
RU2766150C2 |
| POLYMER CONTAINING FLUOROSULFONYL GROUP OR SULFONIC ACID GROUP, ITS PRODUCTION METHOD AND ITS USE | 2018 |
|
RU2771278C2 |
| METHOD OF PRODUCING PERFLUOROALKYL IODIDES AND BROMIDES | 2020 |
|
RU2739762C1 |
| NOVEL METHOD OF PRODUCING 2-FLUOROSULPHONYL TETRAFLUOROETHYL TRIFLUOROVINYL ESTER | 2011 |
|
RU2475477C1 |
| METHOD FOR PRODUCTION OF VIC-DICHLOROFLUOROANHYDRIDE | 2000 |
|
RU2252210C2 |
| METHOD OF PRODUCING OXAPERFLUOROALKANE SULPHONIC ACIDS AND SALTS THEREOF | 2012 |
|
RU2503659C1 |
| PERFLUORO[(2-FLUOROSULPHATE)ETHYLALLYL]ETHER | 2010 |
|
RU2430914C1 |
| TWO-STAGE METHOD OF OBTAINING 2-(FLUOROMETHOXY)-1,1,1,3,3,3-HEXAFLUOROISOPROPANE (SEVOFLURANE) | 2007 |
|
RU2368597C2 |
| FLUORATED DIENE, METHOD OF PRODUCTION OF SUCH DIENE, POLYMER ON BASE OF THIS DIENE, OPTICAL TRANSMITTING DEVICE AND OPTICAL PLASTIC FIBER | 2001 |
|
RU2272020C2 |
