The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2017
Filed:
Nov. 19, 2013
Arkema France, Colombes, FR;
Sophie Audureau, Feyzin, FR;
Grégory Schmidt, Mornant, FR;
ARKEMA FRANCE, Colombes, FR;
Abstract
A fluorination process for obtaining fluorinated compounds including at least one fluorosulfonyl group. More particularly, a process for preparing a fluorinated compound of formula (II), including at least one step of reacting a compound of formula (I) with anhydrous hydrofluoric acid in at least one organic solvent, in which R1 is equal to R2 except in the specific case where R1═Cl, then R2═F, and when R1 is equal to R2, R1 and R2 represent an electron-withdrawing group which has a Hammett parameter σp of greater than 0, such as F, CF, CHF, CHF, CHF, CHF, CHF, CF, CF, CHF, CHF, CHF, CF, CHF, CHF, CF, CFOCF, CFOCF, CHFOCF, CFOCF, CF, CF, CFor CF, and M represents a hydrogen atom, an alkali metal, an alkaline-earth metal or a quaternary ammonium cation.