Method for producing ionic liquids, ionic solids or mixtures thereof
OwnerRoland Kalbinventor
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Abstract
The invention relates to a method for producing ionic liquids and ionic solids which takes recourse to a novel, especially modular production process. According to the inventive method, those salts from an ionic carbonate, hydrocarbonate or monoalkyl or monoaryl carbonate precursor (cationic synthesis module) are produced that comprise the desired quaternary ammonium, phosphonium, sulfonium or the analogous quaternary heteroaromatic cation. This precursor can be produced and stored efficiently and with a high degree of purity.
Claims28
A process for preparing ionic liquids, ionic solids or mixtures thereof and having the general formula [Q+]n [Zn−] from cationic synthesis modules including said [Q+] and having the general formula [Q+]n[Yn−] and anionic synthesis modules comprising said [Zn−] as their anion,
- where said [Q+] of said cationic synthesis module is a quaternary ammonium [R1R2R3R4N+], phosphonium [R1R2R3R4P+] or sulfonium [R1R2R3S+] cation or an analogous quaternized nitrogen, phosphorus or sulfur heteroaromatic,
- where the radicals R1, R2, R3, R4 are all identical, partly identical or different,
- the radicals R1, R2, R3 and R4 are linear, cyclic, branched, saturated or unsaturated alkyl radicals, monocyclic or polycyclic aromatic or heteroaromatic radicals or derivatives of these radicals which are substituted by further functional groups and
- R1, R2, R3, R4 may also be joined to one another (polyvalent radical), and
- wherein said [Yn−] of said cationic synthesis module is a hydrogencarbonate [HCO3], carbonate [CO32−], monoalkylcarbonate or monoarylcarbonate [ROCO2−], and
- where R is a linear, cyclic, branched, saturated or unsaturated alkyl radical, monocyclic or polycyclic aromatic or heteroaromatic or [ROCO2−] is another monosubstituted carbonate, and
- wherein said anionic synthesis module is reacted with said cationic synthesis module [Q+]n[Yn−] to remove the anion [Yn−] of the cationic synthesis module and replace it by said anion [Zn−] of said ionic liquids, ionic solids or mixtures.
A process for preparing ionic liquids, ionic solids or mixtures thereof and having general formula [Q+]n[Zn−] from cationic synthesis modules including said [Q+] and having the general formula [Q+]n[Yn−] and anionic synthesis modules comprising said [Zn−] as their anion,
- where said [Q+] of said cationic synthesis module is a quaternary ammonium [R1R2R3R4N+], phosphonium [R1R2R3R4P+] or sulfonium [R1R2R3S+] cation or an analogous quaternized nitrogen, phosphorus or sulfur heteroaromatic, where the radicals R1, R2, R3, R4 are all identical, partly identical or different,
- the radicals R1, R2, R3, and R4 are linear, cyclic, branched, saturated or unsaturated alkyl radicals, monocyclic or polycyclic aromatic or heteroaromatic radicals or derivatives of these radicals which are substituted by further functional groups and
- R1, R2, R3, R4 may also be joined to one another (polyvalent radical), and said [Yn−] of said cationic synthesis module is an alkoxide [RO−],
- where R is a linear, cyclic, branched, saturated or unsaturated alkyl radical, a monocyclic or polycyclic aromatic or heteroaromatic or a derivative of these radicals which is substituted by further functional groups, and
- wherein said anionic synthesis module is reacted with said cationic synthesis module to remove the anion [Yn−] of the cationic synthesis module and replace it by said anion [Zn−] of said ionic liquids, ionic solids or mixtures.
Dependencies are inferred from the claim text.