Back to results
US 12,024,425 B2Granted
Method for preparing an imide salt containing a fluorosulphonyl group
AssigneeArkema France
InventorsGrégory Schmidt, Jérémy Bauche, Dominique Deur-Bert
Life of this patent
Estimating the term…
Abstract
A method for preparing a compound having the following formula (IV): R2—(SO2)—NLi—(SO2)—F (IV), the method including a step a) of reacting a sulphamide having the following formula (A): R0—(SO2)—NH2 (A) with at least one sulphur-containing acid and at least one chlorinating agent, the step a) being carried out: at a temperature between 90° C. and 130° C., and at a pressure which is strictly greater than 7 bar (absolute).
Claims16
A process for preparing a compound of the following formula (IV)
- R2—(SO2)—NLi—(SO2)—F (IV)
- wherein R2 represents one of the following radicals:
- F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H4F3, C3HF6, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, C8F17 or C9F19;
- said process comprising a step a) of reacting a sulfamide of the following formula (A):
- R0—(SO2)—NH2 (A)
- wherein R0 represents one of the following radicals:
- OH, Cl, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H4F3, C3HF6, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, C8F17 or C9F19;
- with at least one sulfur-containing acid and at least one chlorinating agent, said step a) being carried out:
- at a temperature between 90° C. and 130° C., and
- at a pressure of at least 8 bar abs,
- wherein the reaction of step a) produces a chlorinated product of the following formula (I):
- R1—(SO2)—NH—(SO2)—Cl (I)
- wherein R1 represents one of the following radicals:
- Cl, F, CF3, CHF2, CH2F, C2HF4, C2H2F3, C2H3F2, C2F5, C3F7, C3H4F3, C3HF6, C4F9, C4H2F7, C4H4F5, C5F11, C6F13, C7F15, C8F17 or C9F19.
11 more elements
Dependencies are inferred from the claim text.