Process for preparing ambient temperature ionic liquids

Details Process for preparing ambient temperature ionic liquids Process for preparing ambient temperature ionic liquids

C - Chemistry, Metallurgy

07

B

C07B 37/02 (2006.01) B01J 31/02 (2006.01) B01J 37/00 (2006.01) C07D 521/00 (2006.01)

Patent

CA 2392783

A process for preparing an ionic liquid or salt, preferably in which the cation comprises an N-alkylated base and the anion is a carboxylate, formed by reaction between an organic base and an alkylating agent, wherein the alkylating agent is a fluorinated ester or an alkyl sulfonate, is described. Suitable organic bases include imizadoles, substituted imidazoles, pyridines and substituted pyridines. The so-formed products can be subsequently transformed into different ionic liquids or salts by metathesis.

L'invention concerne un procédé de préparation d'un liquide ou d'un sel ionique, de préférence, un liquide dans lequel le cation comprend une base N-alkylée et l'anion est un carboxylate, formé par réaction entre une base organique et un agent d'alkylation, ledit agent d'alkylation étant un ester fluoré ou un sulfonate d'alkyle. Des bases organiques appropriées comprennent des imidazoles, des imidazoles substitués, des pyridines et des pyridines substitués. Les produits ainsi formés peuvent être transformés subséquemment en différents liquides ou sels ioniques par métathèse.

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