Patent DE-102004040016-A1 (DE)
Title: Preparation of ionic liquids, useful as electrolytes, comprises reacting anion compounds with heterocyclic compounds and phosphor containing compounds, reacting the resulting product with e.g. ether and continuously isolating the product
Inventor: ONDRUSCHKA BERND
IPC: C07C211/62
Filed: 2004-08-16
Abstract: Preparation of ionic liquids (I) comprises reaction of anion compounds (1) with heterocyclic compounds (2) containing at least one heteroatom and with phosphor and nitrogen containing compounds (3), in the presence of solvents; reaction of the resulting product (4) with e.g. ether; and isolation of the resulting product continuously from the reaction zone after its formation and the reactants are added corresponding to the reaction zone. Preparation of ionic liquids (I) comprises reaction of a compound (1) of formula (R-Ba) with a compound (2) of formula (X) containing at least one heteroatom and optionally substituted organic, aliphatic, aromatic, alicyclic or heterocyclic compounds (e.g. sulfur-, nitrogen or phosphorus compounds, where the heteroatom is bounded primarily, secondarily or tertiarily, for example 1-alkylimidazol, 1,2-dialkylimidazol, 1-alkenylimidazol, 1-alkoxyimidazol, 1-arylimidazol, 2-alkylimidazol, 2-methylimidazol, acridine, ammonia, azepin, benzimidazol, benzoquinoline, benzothiazol, benzothiazolin, benzothiophene, benzotriazol, benzoxazol, benzthiazole, carbazole, quinazol, quinazolin, quinolin, quinoxalin, quinuclidine, caffeine, dithiane, furazane, imidazol, imidazolidine, imidazoline, indazol, indol, indolin, indolizin, isoquinolin, isoindolin, isothiazol, isoxazol, melamine, morpholine, naphthyridine, oxadiazole, oxazole, phenanthridine, phenanthroline, phenazine, phenothiazine, phenoxadine, phthalazine, piperazine, piperidine, pteridine, purine, pyrazine, pyrazolidine, pyrazoline, pyridazine, pyridine, pyrimidine, pyrrole, pyrrolidine, pyrroline, pyryl, tetrazole, thiadiazine, thiazine, thiomorpholine, thionaphthene, thiophene, triazine, trimethylsilylimidazole, trithiane, trophan) and also with phosphor and nitrogen containing compounds (3) of formulae (PY1>Y2>Y3>) and (NY1>Y2>Y3>), in the presence of a solvent; reaction of the resulting product (4) of formula ([R-X]+>B->) (is non-soluble at reaction temperature and pressure) with e.g. aromatic hydrocarbon, ether, ester, carbonate, lactone, nitrile, amide or sulfone; and isolation of the resulting product continuously from the reaction zone after its formation and the reactants are added corresponding to the reaction zone. R : H, 1-20C alkyl, 5-10C aryl or 2-20C alkenyl; and BaF->, Cl->, Br->, I->, OH->, NO3->, BF4->, PF6->, FeCl4->, ZnCl3->, SnCl5->, AsF6->, SbF6->, AlCl4->, CF3CO2->, NiCl3->, ClO4->, [(CF3SO2)2N] ->, CF3SO3->, CN->, (CN)2N->, (CF3SO2)3C->, (CF3)2PF4->, (CF3)3PF3->, (CF3)5PF->, (CF3)6P->, SF5CF2SO3->, SF5CHFCF2SO3->, CF3CF2(CF3)2CO->, (CF3SO2)2CH->, (SF5)3C->, [O(CF3)2C2CF3)O]2PO->, [H(CF3SO3)2]C->, (CF3)2N->, B(CN)4->, (C2F5)2P(O)O->, (C2F5)3PF3->, (C3F5)3PF3->, (C4F9)3PF3->, Co(CO)4->, CH3SO4->, HSO4->, H2PO4->, HPO42->, BCl4->, HSO4->, SO42->, CO32->, 5-10C arylsulfonate, 1-20C alkylsulfonate, 1-20C alkylsulfate, di-1-20C alkylphosphate, 1-20C alkylphosphonate, 5-10C arylphosphonate, 2-20C alkenylsulfonate, 2-20C alkenylcarbonate, 2-20C alkenylphosphonate, 5-10C arylsulfate, 2-20C alkenylsulfate, bis(1-20C alkylsulfonyl)amide, bis(5-10C arylsulfonyl)amide, bis(2-20C alkenylsulfonyl) amide, 1-20C alkylcarbonate, 5-10C arylcarbonate, 1-20C alkylcarboxylate, 2-20C alkenylcarboxylate or 5-10C arylcarboxylate; Y1>-Y3>H, 1-20C alkyl, 2-20C alkenyl or 5-10C aryl.