METHOD FOR PREPARING BIS-(TRIFLUOROMETHYL)-IMIDO-SALTS Russian patent published in 2006 - IPC C07C211/65 C07C209/84 H01G9/35 H01G9/38 H01M6/16 

FIELD: chemistry of organometallic compounds, chemical technology.

SUBSTANCE: invention relates to new methods for preparing bis-(trifluoromethyl)-imido-salts of the general formula (I): [M^a+][(N(CF₃)₂ ^-]_a wherein if a = 1 then M^a+ represents copper or silver cation; or if a = 1 then M^a+ means cation of the general formula (III): [([R¹ _b R² _c R³ _d R⁴ _e]A_x)_yKt]⁺ wherein Kt means N, P, As, Sb, S, Se; A means N, P, P(O), O, S, -S(O), As, -As(O), Sb, -Sb(O); R¹, R², R³ and R⁴ are similar or different and mean hydrogen atom (H), halogen atom, unsubstituted alkyl of the formula C_nH_2n+1, unsubstituted (C₁-C₁₈)-alkenyl with one or some doubles bonds, unsubstituted (C₁-C₁₈)-alkynyl with one or some triple bonds, unsubstituted cycloalkyl of the formula C_mH_2m-1, unsubstituted phenyl wherein n = 1-18; m = 3-7; x = 0 or 1; y = 1-4, y = 1 for x = 0 wherein in each case b, c, d and e mean 0 or 1, and b + c + d + e ≠ 0; A can be incorporated into different positions of R¹, R², R³ and/or R⁴; groups bound with Kt can be similar or different; or at a = 2 the index M^a+ represents mercury, copper, zinc or cadmium cation wherein there is at least one group of trifluoromethanesulfonate of the general formula (II): (M^a+)[(OSO₂CF₃)^-]_a wherein M^a+ has the abovementioned values. Method involves interaction of above proposed compounds with bis-(trifluoromethyl)-imido-rubidium in organic solvent medium and the prepared by such method bis-(trifluoromethyl)-imido-salt of the general formula (I) can be purified and/or isolated by the conventional methods. Also, invention relates to new compounds of the formula (I) wherein M^a+ means Cd²⁺, Zn²⁺ or Cu⁺, to electrolytes comprising at least one compound of the formula (I) and to electrochemical elements comprising the indicated electrolyte.

EFFECT: improved preparing method.

11 cl, 3 dwg, 6 ex