LOW-VISCOSITY IONIC LIQUIDS Russian patent published in 2011 - IPC C07F9/24 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing ionic liquids with a [(C₂F₅)₂P(O)]₂N^- anion and a cation selected from cations of formula (2) or (6) [PR² ₄]⁺ (2), [HetN]⁺ (6), where R² denotes C_1-20alkyl; HetN⁺ is selected from imidazolium, pyrazolium, pyrazolinium, dihydroimidazolium, pyrrolidinium, triazolium, pyridinium, pyridazinium, pyrimidinium, piperidinium, morpholinium, pyrazinium, thiazolium, oxazolium, indolium, quinolinium, isoquinilinium, quinoxalinium, indolinium, having substitutes selected from C_1-20-alkyl and hydrogen. The disclosed method involves reaction of compounds of formula [(R_F)₂P(O)]₂NY (7), where Y=H, R_F=C₂F₅, in a solvent or mixture of solvents, with K⁺A^- type compounds, where K⁺ is selected from cations of formula (2) or (6) and A^-=Cl^-, Br^-, I^-, BF₄ ^-, R'OSO₃ ^-, R'SO₃ ^- or (R')₂P(O)O^-, where R'=H, C₁-C₆-alkyl, C₁-C₆-fluoroalkyl, C₁-C₆-perfluoroalkyl, C₃-C₇-cycloalkyl, unsubstituted or substituted phenyl.

EFFECT: novel method of producing low-viscosity ionic liquids and high electrochemical stability.

4 cl, 8 ex