Borate , tetrafluoro-, sodium

Sodium tetrafluoroborate Borate (1-), tetrafluoro-, sodium (8,9) (13755-29-8) Cyclopentadienyliron dicarbonyl dimethsulfonium tetrafluoroborate [i.e.(Ti5-C5H5)(CO)2FeCH2S+(CH3)2BF4-] Iron (1+), dicarbonyl(n5-2,4-oyclopentadien-1-yl)(dimethylsulfonium ri-methylide)-, tetrafluoroborate (1-) (10) (72120-26-4)... 

Apreton R Borate(l-), tetrafluoro-, sodium Boron sodium fluoride (BNaF4) EINECS 237-340-6 NSC 77386 Pyricit Sodium borofluoride Sodium boron fluoride Sodium boron tetrafluoride Sodium fiuoborate Sodium fluoborate (Na(BF4 Sodium fluoroborate (NaBF4) Sodium tetrafluoroborate Sodium tetrafluoroborate 1-). Used as a fluorinating agent. Rectangular prisms mp = 384° = 2.4700 soluble in H2O (108 g/100 ml), less... 

Borates, tetra, sodium salts, pentahydrate. See Sodium tetraborate pentahydrate Borate (1-), tetrafluoro-, hydrogen. See Fluoboric acid... 

The fluorination of pyridine with cesium fluoroxysulfate in the presence of sodium tetrafluoro-borate in acetonitrile at 0-5 C gives 1-fluoropyridinium tetrafluoroborate (3).42... 

ALKENES Alkyl diphenyl phosphonates. o-Chloroallyllithium. Chlorotrynethyl-silane-Sodium iodide. Grignard reagents. Otganocuprates. Triphenylphosphine-lodoform-Imidazole. Trityl tetrafluoro-borate. 

Solvents were dried over sodium (light petroleum, bp 40-60°C, toluene) or sodium-benzophenone (diethyl ether, THF). Sodium amide, hexamethyl-disilazane, lithium triethylhydroborate(l —), and hydrogen tetrafluoro-borate(l —) diethyl ether complex were obtained from Aldrich and used as supplied. 

A few examples of the reduction of aliphatic diazo compounds to hydrazines exist," but this is not a generally applicable method for the synthesis of alkylhydrazines. On the other hand, arylhydrazines can be prepared by reduction of aromatic diazonium salts.The most commonly used reagents for this conversion are sulfur dioxide (or sodium sulfite) and tin(II) chloride, these being used to reduce arenediazo-nium chlorides in aqueous solution. Several other reagents, including sodium amalgam and triphenylphosphine, have been used for specific reductions of this type. Arenediazonium tetrafluoro-borates have been reduced to the correspwnding hydrazinium salts (3) by benzeneselenol in dichloro-... 

The above crude product (2.39 g, 14.4 mmol) is dissolved in chloroform (30 ml) and stirred at room temperature (24 h) with trimethyloxonium tetrafluoro-borate(2.34g, 15.8 mmol). A further portion (1.17g, 7.9 mmol) of methylating agent is then added. After 20 h the mixture is concentrated in vacuo and the residue is dissolved in water. The solution is made basic with solid sodium carbonate, and extracted with chloroform (5 x 25 ml). The combined extracts are dried (MgS04), concentrated to a brown oil, and flash chromatographed (methanol-chloroform, 5 95) to give a pale yellow solid (1.30 g, 65%),... 

When (2-methylenecyclopropyl)methylphenylsulphonium tetrafluoro-borate reacts with sodium cyclopentadienide a tricyclic product results whose formation can be rationalised as follows [173] ... 

Borate(l-), tetrafluoro-, potassium. See Potassium fluoborate Borate(l-), tetrafluoro-, tin (2+) (2 1). See Stannous fluoroborate Borate (1-), tetrahydro-, potassium. See Potassium borohydride Borax Borax, Borax decahydrate. See Sodium borate decahydrate Borax, fused. See Sodium borate Bordeaux RRN. See Pigment orange 43 Bordeaux F2R. See Pigment red 12... 

Cl 1-12 isoparaffin Cl 1-13 isoparaffin Deodorized kerosene trans-1,2-Dichloroethylene 2,3-Dihydrodecafluoropentane Ditallow dimonium chloride Ethylene carbonate Ethylene chlorohydrin Gluconolactone Isohexane Methyl acetate Naphtha, hydrotreated light Pentasodium triphosphate, hexahydrate 2-Phosphonobutane tricarboxylic acid-1,2,4 Propylene carbonate Sodium borate decahydrate Stearyl hydroxyethyl imidazoline 2,2,3,3-Tetrafluoro-1-propanol Trisodium phosphate, chlorinated Xylene cleaner ingredient Ammonium biborate cleaner ingredient, engine Cresylic acid Xylenol cleaner ingredient, industrial Butyl acid phosphate Sodium hydroxide cleaner mfg. 

Wong et al. [41] showed that sodium montmorillonite imparted a better thermal stability to polyvinylidene difluoride-polyethylene (PE) glycol polymers than did organic montmorillonite. They showed that ethyl-3-methylimidazolium tetrafluoro-borate-functionalized montmorillonite greatly enhanced the thermal stability of the polymer. Liu et al. [42] studied the effect of various organoclays on the heat stability of poly trimethylene terephthalate. 

Preparation.—Full details have now appeared of a useful addition to the limited list of methods for the conversion of primary amines into alcohols or their derivatives. Reaction of the amine with 2,4,6-triphenylpyrilium tetrafluoro-borate and pyrolysis of the resulting pyridinium salt (1) in the presence of sodium acetate or benzoate gives the corresponding alcohol as an acetate or benzoate ester in good yield (Scheme 1). 

As illustrations. Tables 2 and 3 list assignments for the H-NMR spectra of two important bryostatins and two bryostatin acetates while Fig. 5 lists assignments for the C-NMR spectrum of bryostatin 12. Fig. 6 shows the ultraviolet spectra, while mention of other ultraviolet, infrared, and mass spectral characteristics has already been made in Section 5. However an illustration of the application of mass spectrometry to the structure elucidation of bryostatins 5-7 will be instructive (27). The solution phase secondary ion mass spectra of these three bryostatins were quite revealing when new techniques for detecting molecular ions of hitherto refractory substances were utilized. By employing an alkali metal iodide such as sodium iodide or silver tetrafluoro-borate or thallium tetrafluoroborate in sulfolane the molecular ions... 

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