Method for the production of hydrogen bis(chelato)borates...

Details Method for the production of hydrogen bis(chelato)borates... Method for the production of hydrogen bis(chelato)borates...

C - Chemistry, Metallurgy

07

F

C07F 5/04 (2006.01) C07F 5/02 (2006.01)

Patent

CA 2439068

Methods are disclosed for the production of hydrogen bis(chelato)borates of general formula H[BL1L2] and alkali metal bis(chelato)borates of general formula M[BL1L2], where M = Li, Na, K, Rb, Cs, L1 = -OC(O)-(CR1R2)n-C(O)O- or - OC(O)-(CR3R4)-O-, where n = 0 or 1, R1, R2, R3, R4 independently = H, alkyl, aryl or silyl, L2 = -OC(O)-(CR5R6)n-C(O)O- or -OC(O)-(CR7R8)-O-, where n = 0 or 1, R5, R6, R7, R8 independently = H, alkyl, aryl or silyl, whereby the starting material is mixed in solid form without the introduction of solvents and brought to reaction. For example lithium bis(oxalato)borate, lithium bis(malonato)borate, caesium bis(oxalato)borate, caesium bis(malonato)borate and the mixed salts lithium (lactato, oxalato)borate and lithium (glycolato, oxalato)borate can be produced thus.

L'invention concerne un procédé de production de bis(chelato)borates d'hydrogène de formule générale H[BL?1¿L?2¿] et de bis(chelato)borates de métaux alcalins de formule générale M[BL?1¿L?2¿] avec M = Li, Na, K, Rb, Cs L?1¿ = -OC(O)-(CR?1¿R?2¿)¿n?-C(O)O- ou -OC(O)-(CR?3¿R?4¿)-O- avec n = 0 ou 1, R?1¿, R?2¿, R?3¿, R?4¿ = indépendamment les uns des autres H, alkyle, aryle ou silyle, L?2¿ = -OC(O)-(CR?5¿R?6¿)¿n?-C(O)O- ou -OC(O)-(CR?7¿R?8¿)-O- avec n = 0 ou 1, R?5¿, R?6¿, R?7¿, R?8¿ = indépendamment les uns des autres H, alkyle, aryle ou silyle, procédé selon lequel les produits de départ respectifs sont mélangés sous forme solide sans addition de solvants puis mis en réaction. Ainsi, du bis(oxalato)borate de lithium, du bis(malonato)borate de lithium, du bis-(oxalato)borate de césium, du bis(malonato)borate de césium et les sels mélangés (lactato,oxalato)borate de lithium et (glycolato,oxalato)borate de lithium peuvent p. ex. être produits.

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