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  Novel strong boron-containing acids, the preparation and use thereofUSPTO Application #: 20070293391Title: Novel strong boron-containing acids, the preparation and use thereof Abstract: The invention relates to boron-containing acids of the general formula (I) [B(RF)4-x-y(CN)xFy]− H+ (I), where x=0, 1, 2, 3 or 4, y=0, 1, 2 or 3 x+y≦4, and in which the ligands RF may be identical or different and RF stands for a perfluorinated or partially fluorinated C1-12-alkyl group and where the CN group is bonded to the B atom via the C atom, and complexes thereof with a solvent, to salts comprising a cation and the anion of a selection of the acids according to the invention, and to processes for the preparation of the salts. (end of abstract) Agent: Millen, White, Zelano & Branigan, P.C. - Arlington, VA, US Inventors: Maik Finze, Eduard Bernhardt, Helge Willner, Nikolai Ignatyev, Urs Welz-Biermann USPTO Applicaton #: 20070293391 - Class: 502154000 (USPTO) Related Patent Categories: Catalyst, Solid Sorbent, Or Support Therefor: Product Or Process Of Making, Catalyst Or Precursor Therefor, Organic Compound Containing, Organic Compound Including Carbon-metal Bond, Including Metal Compound Containing Different Metal Than That Bonded To Carbon The Patent Description & Claims data below is from USPTO Patent Application 20070293391. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] The invention relates to boron-containing acids of the general formula (I) [B(R.sup.F).sub.4-x-y(CN).sub.xF.sub.y].sup.- H.sup.+ (I) [0002] where [0003] x=0, 1, 2, 3 or 4, [0004] y=0, 1, 2 or 3 and [0005] x+y.ltoreq.4, [0006] and in which [0007] the ligands R.sup.F may be identical or different and [0008] R.sup.F stands for a perfluorinated or partially fluorinated C.sub.1-12-alkyl group and [0009] where the CN group is bonded to the B atom via the C atom, [0010] and complexes thereof with a solvent. [0011] The present invention furthermore relates to processes for the preparation of the acids according to the invention, to salts comprising a cation and the anion of a selection of the acids according to the invention, and to processes for the preparation of the salts. [0012] The invention furthermore relates to the use of the acids and salts according to the invention. [0013] The prior art describes borate anions in which fluorine ligands have been replaced by cyanide (E. Bernhardt, G. Henkel, H. Willner, Z. Anorg. Allg. Chem. 626 (2000) 560; D. Williams, B. Pleune, J. Kouvetakis, M. D. Williams, R. A. Andersen, J. Amer. Chem. Soc. 122 (2000) 7735; E. Bernhardt, M. Berkei, M. Schurmann, H. Willner, Z. Anorg. Allg. Chem. 628 (2002) 1734) and trifluoromethyl ligands (E. Bernhardt, G. Henkel, H. Willner, G. Pawelke, H. Burger, Chem. Eur. J. 7 (2001) 4696; G. Pawelke, H. Burger, Coord. Chem. Rev. 215 (2001) 243). The trifluoromethyl borates here are synthesised starting from the cyanoborates, but the cyanoborates are accessible with difficulty and only in small amounts. The synthesis of [B(CN).sub.4].sup.- is labour-intensive and can only be carried out on a small preparative scale. In addition, the starting materials are expensive. Salts with tetrakis(trifluoromethyl)borate anions are described in EP 1205480 A1. A novel synthesis of alkali metal tetracyanoborates and salts, in particular ionic liquids, with a cyanoborate anion which also contains F ligands are described in WO 2004/07089. [0014] The synthesis of the cyanoboric acids of the formula (I) in which replacement of a cyanide ligand by a perfluoroalkyl ligand is carried out in the simultaneous presence or absence of a fluoride ligand has not been carried out to date. [0015] The present invention had the object of providing alternative strong acids which can be used, in particular, for the synthesis of salts which lead to ionic liquids or catalyst systems. [0016] This object is achieved by the acids of the general formula (I) [B(R.sup.F).sub.4-x-y(CN).sub.xF.sub.y].sup.- H.sup.+ (I) [0017] where [0018] x=0, 1, 2, 3 or 4, [0019] y=0, 1, 2 or 3 and [0020] x+y.ltoreq.4. [0021] and in which [0022] the ligands R.sup.F may be identical or different and [0023] R.sup.F stands for a perfluorinated or partially fluorinated C.sub.1-12-alkyl group and [0024] where the CN group may be bonded to the B atom via the C atom, Continue reading... Full patent description for Novel strong boron-containing acids, the preparation and use thereof Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Novel strong boron-containing acids, the preparation and use thereof patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Novel strong boron-containing acids, the preparation and use thereof or other areas of interest. ### Previous Patent Application: Alkylation catalyst, its preparation and use Next Patent Application: Porous sintered body, method of manufacturing porous sintered body, and method of manufacturing exhaust gas purifying apparatus Industry Class: Catalyst, solid sorbent, or support therefor: product or process of making ### FreshPatents.com Support Thank you for viewing the Novel strong boron-containing acids, the preparation and use thereof patent info. IP-related news and info Results in 0.14087 seconds Other interesting Feshpatents.com categories: Novartis , Pfizer , Philips , Polaroid , Procter & Gamble , |
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