14075-53-7Relevant articles and documents
Reactions of (CF3)3BCO with amines and phosphines
Finze, Maik,Bernhardt, Eduard,Willner, Helge,Lehmann, Christian W.
, p. 669 - 678 (2006)
Reactions of tris(trifluoromethyl)borane carbonyl, (CF3) 3BCO, with ammonia yielded either a mixture of [NH 4][(CF3)3BC(O)NH2], [NH 4][(CF3)3BCN], and [NH4] 2[{(CF3)3BC(O)}2NH] or neat [NH 4]2[{(CF3)3BC(O)}2NH] depending on the reaction conditions. The salt K[(CF3) 3BC(O)NH2] was obtained as the sole product from the reaction of NH3 with K[(CF3)3BC(O)F]. A simple synthesis for cyanotris(trifluoromethyl)borates, M[(CF3) 3BCN], was developed by dehydration of M[(CF3) 3BC(O)NH2] (M = [NH4], K) using phosgene. In addition, syntheses of the tris(trifluoromethyl)boron species [(CF 3)3BC(O)NHnPr]-, [(CF 3)3BC(O)NMe2]-, and (CF 3)3BC(O)NMe3, as well as of (CF 3)3BC(O)PMe3, were performed. All species were characterized by multinuclear NMR spectroscopy. As far as neat substances resulted, IR and Raman spectra were recorded and their thermal behaviors were studied by differential scanning calorimetry. The interpretation of reaction pathways, structures, and vibrational spectra are supported by DFT calculations. The solid-state structure of K2[{(CF3) 3BC(O)}2NH]·2MeCN was determined by single-crystal X-ray diffraction.
The reactivity of potassium polyfluoroaryl-, polyfluoroalkenyl-, and perfluoroalkyltrifluoroborates and their hydrocarbon analogues towards acids of different strength: A systematic study of the hydrodeboration
Bardin,Idemskaya,Frohn
, p. 883 - 890 (2002)
The hydrodeboration of the (fluoroorgano)trifluoroborates K [RFBF3] [RF = C6F5, XCF=CF (X - F, cis- and trans-Cl, -C3F7O, cis-C2F5, trans-C4F9, -C4H9) and C6F13]and of the organotrifluoroborates K [RBF3] (R = C6H5, cis- and trans-C4H9CH=CH, C4H9 and C8H17) with CH3CO2H (100%), CF3CO2H (100 %), aqueous HF and anhydrous HF was investigated. In the alkenyltrifluoroborates K [R′=CFCFBF3] the formal replacement of BF3 by a proton occurred stereospecifically under retention of the configuration. The 19F NMR spectra of K [RFBF3] in acids indicate strong interactions of the BF3 group with protons or acid molecules.
Study on the coordination properties of [CeFx]4-x and [BFy]3-y in sulfuric acid medium by complexometric potentiometric titration
He, Jingui,Li, Yong,Xue, Xiangxin,Ru, Hongqiang,Huang, Xiaowei,Yang, He
, p. 106 - 111 (2013)
Complexometric titration experiments were carried out in three systems of F-Ce, F-B and F-Ce-B to investigate the coordination properties of CeF x4-x and BFy3-y with ion-selective electrode as indicator. The str
Direct perfluorination of K2B12H12 in acetonitrile occurs at the gas bubble-solution interface and is inhibited by HF. Experimental and DFT study of inhibition by protic acids and soft, polarizable anions
Peryshkov, Dmitry V.,Popov, Alexey A.,Strauss, Steven H.
, p. 18393 - 18403 (2009)
During the optimization of the F2 perfluorination of K 2B12H12 in acetonitrile with continuous bubbling of 20/80 F2/N2, it was discovered that (i) HF and other protic acids inhibit each of
Thermal studies of potassium tetrahydroborate?sodium tetrafluoroborate mixtures
Saldin,Sukhovei,Savchenko,Slobodyuk,Kavun, V. Ya.
, p. 489 - 497 (2017/05/05)
The KBH4?NaBF4 mixture was studied by thermal analysis (differential scanning calorimetry). Chemical analysis, X-ray powder diffraction analysis, IR spectroscopy, and 11B and 19F MAS NMR spectroscopy showed that the primary stage of the complex pyrolysis process is a metathesis reaction between components to form a new mixture, NaBH4?KBF4, the decomposition of which with the release of gaseous products and the formation of polyhedral borohydride compounds (mainly B12H12 2-) in the solid residue begins at a temperature of about 563 K. At a certain ratio between reactants in the initial mixture KBH4?NaBF4, the B12H12 2- anion can form with the material participation of the BF4 - anion.
Thermoanalytical and preparative investigations of the decomposition of potassium perfluoroorganyl(fluoro)borate salts, K[RFBF3] (RF = perfluoroalkyl, -alkenyl, -alkynyl, and -aryl groups) and K[(RF)2BF2] (RF = C 6F5 and C6F13)
Bardin, Vadim V.,Shundrina, Inna K.,Frohn, Hermann-Josef
, p. 73 - 78 (2014/01/06)
Potassium perfluoroalkenyl(fluoro)borates, K[RFBF3], (RF = CF2C(CF3), cis-CF3CFCF, and cis-C6F13CFCF) decomposed at 208-225 C (Tmax, dTG). The K[RFBF3] salts (RF = C 3F7, C6F13, trans-CF 3CFCF, and trans-C4F9CFCF) decomposed at 273-312 C (Tmax, dTG). Both groups of salts formed volatile polyfluoroorganics and K[BF4] as solid residue. The preparative thermolysis of selected prototypical salts K[RFBF3] showed that the polyfluoroorganics consisted of a mixture of internal perfluorohexenes, C6F12, and 1-H-tridecafluorohexane, C6F13H, in case of K[C6F13BF 3], and of perfluorooctynes, C8F14, and cis-C6F13CFCFH in case of K[cis-C6F 13CFCFBF3]. The salts K[(C6F5) 2BF2] and K[RFBF3] (RF = CF3CC, CF3CFCFCC, C6F5CC, C 6F5, 2,3,5,6-C5NF4) decomposed in the temperature range 249-337 C (Tmax, dTG) and mainly resulted in non-volatile polyfluoroorganics besides K[BF4]. The reaction path of the thermolysis of perfluoroalkyl-, perfluoroalkenyl-, and perfluorophenyl(fluoro)borates is discussed and compared with that of perfluorocarboxylates.
COMPOUNDS CONTAINING PERFLUOROALKYL-CYANO-ALKOXY-BORATE ANIONS OR PERFLUOROALKYL-CYANO-ALKOXY-FLUORO-BORATE ANIONS
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Page/Page column 19, (2012/12/13)
The present invention relates to compounds containing perfluoroalkyl-cyano-alkoxy-borate anions or perfluoroalkyl-cyano-alkoxy-fluoro-borate anions, ((per)fluoro)phenyl-cyano-alkoxy-borate anions or ((per)fluoro)phenyl-cyano-alkoxy-fluoro-borate anions or phenyl-cyano-alkoxy-borate anions which are monosubstituted or disubstituted with perfluoroalkyl groups having 1 to 4 C atoms or phenyl-cyano-alkoxy-fluoro-borate anions which are monosubstituted or disubstituted with perfluoroalkyl groups having 1 to 4 C atoms, the preparation thereof and the use thereof, in particular as part of electrolyte formulations for dye sensitized solar cells.
Silyl-directed, iridium-catalyzed ortho-borylation of arenes. A one-pot ortho-borylation of phenols, arylamines, and alkylarenes
Boebel, Timothy A.,Hartwig, John F.
, p. 7534 - 7535 (2008/12/22)
The regioselectivity of the borylation of arenes catalyzed by the combination of 4,4′-di-tert-butylbipyridine (dtbpy) and [Ir(cod)Cl]2 has typically been governed by steric effects. We describe a strategy that makes use of a new substituent for ortho-functionalization to overcome this bias. We show that arenes containing hydrosilyl substituents on an atom attached to the arene ring undergo borylation at the position ortho to the hydrosilyl group. Using iridium-catalyzed formation of silyl ethers and silylamines from silanes and either phenols or arylamines, we have developed the ortho-borylation into a one-pot conversion of free phenols and monoprotected anilines into hydroxy- and amino-substituted organoboron derivatives. Copyright
Polyfluoroorganoboron-oxygen compounds. 5 Feasible routes to perfluoroalkyltrimethoxyborates M[CnF2n+1B(OMe) 3] (n ≥ 3)
Adonin, Nicolay Yu.,Bardin, Vadim V.,Frohn, Hermann-Josef
, p. 647 - 652 (2008/10/09)
A well applicable preparative method for lithium perfluoroalkyltrimethoxyborates, Li[CnF2n+1B(OMe) 3] (n = 3, 4, 6), was elaborated which is based on the reaction of B(OMe)3 with CnF2n+1Li generated from C nF2n+1H and t-BuLi. Alternative perfluoroalkylation reactions of B(OMe)3 with perfluoropropyllithium generated from C3F7I and RLi, perfluoropropylmagnesium bromide, or perfluoropropyltrimethylsilane and potassium fluoride gave less satisfactory results for M[C3F7B(OMe)3]. The conversion of M[CnF2n+1B(OMe)3] salts (M = Li, BrMg) into K[CnF2n+1B(OMe)3] salts and basic properties of the new salts are reported.
Bifunctional perfluoroaryl boranes: Synthesis and coordination chemistry with neutral lewis base donors
Chase, Preston A.,Henderson, Lee D.,Piers, Warren E.,Parvez, Masood,Clegg, William,Elsegood, Mark R. J.
, p. 349 - 357 (2008/10/09)
A practical synthetic route for the preparation of the known bifunctional perfluoroaryldiborane C6F4-1,2-[B(C6F 5)2]2,1, and the new diborane C 6F4-1,2-[B(C12F8)]2, 2, that circumvents the use of toxic mercury reagents has been developed. Key intermediates and 2 have been fully characterized in solution and the solid state. Solution and structural investigations of their MeCN and THF adducts have shown that 2 is a superior Lewis acid to 1, primarily owing to the reduction in steric pressure afforded by the planar 9-borafluorene rings in 2 versus the freely rotating set of pentafluorophenyl rings in 1. The two compounds bind Lewis bases via differing coordination modes, as demonstrated by the solid-state structures of the Lewis base adducts 1·MeCN, 2·THF, and 2·MeCN. Solution studies suggest that bis Lewis base adducts are also accessible; the structures of two examples (1·(MeCN)2 and 2·(THF)2) have been determined, and their role in the dynamic solution behavior of these systems is discussed.
