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US 2026/0097960 A1Published application
Method for manufacturing bis(halogeno sulfonyl)imide
AssigneeSpecialty Operations France
InventorsFrédéric Batt, Elie Derrien, Vincent Schanen, Gwilherm Evano, Cédric Theunissen, Agathe Zakardjian
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Abstract
The present invention relates to a new synthetic pathway for manufacturing bis(halogeno sulfonyl)imide, which are useful intermediates in the synthesis of lithium bis(fluorosulfonyl)imide (LiFSI).
Claims19
A method for manufacturing bis(halogeno sulfonyl)imide of formula (I) or (II):
- wherein
- R is a linear or branched alkyl group comprising from 1 to 10 carbon atoms;
- and
- each of X is independently selected from F, Cl and Br;
- said method comprising:
- a) providing a sulfuryl halogenide of formula XaSO2Xb
- wherein each of Xa and Xb, identical or different from each other, is selected from F, Cl and Br;
- b) providing at least one ammonium salt;
- c) contacting said sulfuryl halogenide and said at least one ammonium salt, to obtain the bis(halogeno sulfonyl)imide of formula (I) or (II).
6 more elements
Dependencies are inferred from the claim text.