US 7,253,317 B2 · Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group

Abstract

The invention relates to a fluorination process for producing fluorinated compounds. The process consists in reacting a compound (I) corresponding to the formula with an ionic fluoride of a monovalent cation. M represents H, an alkali metal, a quaternary phosphonium group or a quaternary ammonium group. Y represents SO2 and m is 1, or else Y is PO and m is 2. Z represents CR2, N or P. R1 represents an electron-withdrawing group which has a Hammet σP parameter of greater than 0.4. R2 represents a carbonaceous and/or electron-withdrawing group. X represents a halogen other than a fluorine. The fluorinated compounds obtained are of use in particular as electrolytes in lithium batteries.

Claims23

Dependent claims

A process for the fluorination of a compound (I) comprising reacting, optionally in a solvent, a fluorinating agent with said compound, wherein the fluorinating agent is an ionic fluoride of a monovalent cation and wherein the compound (I) corresponds to the following formula:

in which:
M represents H, an alkali metal;
a quaternary phosphonium group or a quaternary ammonium group;
Z represents CR2, N or P;
Y represents SO2 and m is 1, or Y is PO and m is 2;
R1 represents an electron-withdrawing group which has a Hammett σP parameter of greater than 0.4;
R2 represents a carbonaceous and/or electron-withdrawing group;
X represents a halogen other than fluorine.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/451,920Filed 21 Dec 2001

Priority

FR 00 1730729 Dec 2000

Published

US 2004/0097757 A120 May 2004

Granted

7 Aug 2007

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

C07C 303/36
Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides: of amides of…
C01B 21/0935
Containing also one or more sulfur atoms: imidodisulfonic acid; Nitrilotrisulfonic acid; Salts thereof
C01B 21/097
Compounds containing nitrogen and non-metals and optionally metals: containing phosphorus atoms
H01M 10/052
Accumulators with non-aqueous electrolyte: li-accumulators

Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group

Life of this patent

Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group

Life of this patent

Abstract

Claims23