Ammonium, Tetraethyl-, bromide

Tetraethylammoniurn bromide Ammonium, tetraethyl-, bromide (8) Ethanaminium, N,N,N-triethyl-, bromide (9) (71-91-0)... 

Tetraethyl ammonium bromide Tetramethyl ammonium bromide Triethanolamine Triethylamine... 

Synonym Neatsfoot Oil Necatorina Nechexane Neutral Ahhonium Pluoride Neutral Anhydrous Calcium Hypochlorite Neutral Lead Acetate Neutral Nicotine Sulfate Neutral Potassium Chromate Neutral Sodium Chromatetanhydrous Neutral Verdigris Nickel Acetate Nickel Acetate Tetrahyorate Nickel Ammonium Sulfate Nickel Ammonium Sulfate Hexahydrate Nickel Bromide Nickel Bromide Trihydrate Nickel Carbonyl Nickel Chloride Nickel Chloride Nickel Cyanide Nickel Iiu Fluoborate Nickel Fluoroborate Solution Nickel Fluoroborate Nickel Formate Nickel Formate Dihyorate Nickel Nitrate Nickel Nitrate Hexahydrate Nickel Sulfate Nickel Tetracarbokyl Nickelous Acetate Nickelous Sulfate Nicotine Nicotine Sulfate Nifos Nitralin Nitram O-Nitraniline P-Nitraniline Nitric Acid Nitric Acid, Aluminum Salt Nitric Acid, Iron (111) Salt Compound Name Oil Neatsfoot Carbon Tetrachloride Neohexane Ammonium Fluoride Calcium Hypochlorite Lead Acetate Nicotine Sulfate Potassium Chromate Sodium Chromate Copper Acetate Nickel Acetate Nickel Acetate Nickel Ammonium Sulfate Nickel Ammonium Sulfate Nickel Bromide Nickel Bromide Nickel Carbonyl Nickel Chloride Nickel Chloride Nickel Cyanide Nickel Fluoroborate Nickel Fluoroborate Nickel Fluoroborate Nickel Formate Nickel Formate Nickel Nitrate Nickel Nitrate Nickel Sulfate Nickel Carbonyl Nickel Acetate Nickel Sulfate Nicotine Nicotine Sulfate Tetraethyl Pyrophosphate Nitralin Ammonium Nitrate 2-Nitroaniline 4-Nitroaniline Nitric Acid Aluminum Nitrate Ferric Nitrate... 

MeNP, 2-methyl-2-nitropropane NPent, 1-nitropentane NPh, 3-nitrophenol COT, cycloocta-tetraene TPE, tetraphenylethylene TBAP, tetrabutylammonium perchlorate TEABr, tetraethyl-ammonium bromide TBAPIy, Tetrabutylammonium hexafluorophosphate MeCN, acetonitrile DMSO, dimethylsulfoxide DCM, dichloromethane [42]... 

The 1,2-addition to carbohydrate-derived enol ethers (101) with tetraethyl-ammonium [di(acetoxy)bromate (I)], prepared from PIDA and tetraethyl-ammonium bromide in situ, resulted in 2-deoxy-2-bromopyranosyl acetates (102) which are versatile glycosyl donors for the synthesis of 2 -deoxy-2 -bro-moglycosides (103) [76] [Eq. (23)]. 

NCE = normal (1M KC1) calomel electrode, TMA = tetramethyl ammonium, TEA = tetraethyl ammonium, TPA = tetrapropyl ammonium, TBA = tetrabutylammonium, N = nitrate, B = bromide,... 

Treatment of anhydrous lanthanide(III) bromides with the sodium salt of N,N-diethyldithiocarbamate (dtc) in absolute ethanol yielded Ln(dtc>3 for Ln = La-Lu-Pm. Reaction of Ln(dtc)3 with N, /V-diethy ldithiocarbamate and tetraethyl ammonium bromide in ethanol yielded [(C2Hs)4N][Ln(dtc)4]. All the tetrakis complexes are isostructural while two series of isostructural tris complexes exist, one for Ln = La-Nd and the other for Ln = Sm-Lu. The tris complexes are probably 6-coordinate, and the tetrakis complexes 8-coordinate [261,262]. 

The fine tuning of reduction potential was useful for optimising the cleavage of arenesulfonamides by electrolysis292 in acetonitrile using a mercury pool cathode and platinum anode, with phenol as the proton source and 0.1 M tetraethyl-ammonium bromide as anolyte.29 294... 

Specific effects on AGE, the excess Gibbs free energy, are expected in tetraethyl ammonium bromide (as compared with ammonium bromide), because of the presence of alkyl chains as substituents. The equation needed to calculate AGE is given by... 

Typical data are presented for the major products. BC Benzalconium chloride, HA Hydroxylamin, TBATF Tetrabutyl ammonium tetrafluoroborate, TEAB Tetraethyl ammonium bromide, TEAH Tetraethyl ammonium hydroxide, TEAP Tetraethyl ammonium perchlorate. Ppy Polypyrrole, PAn Polyaniline. 

Figure 7. Electrolytic oxidation of 2,6-dimethylphenol. Key O, poly(2,6-dimethyl phenylene oxide) , oligo(2,6-dimethyl phenylene oxide) (1, 2,2 6,6 -tetramethylbiphenoquinone, 0,1 M dimethylphenol in 20% methanol-dichloro-methane containing 0,2 M tetraethyl ammonium bromide, current density 10 mA/cm platinum counter electrodes with saturated calomel reference under anaerobic condition at room temperature.

The mesoporous silicoaluminophosphate materials were synthesized using cetyl tiimethyl ammonium bromide (CTAB) (99% S.D. Fine Chemicals) as structure directing agent. In a typical synthesis procedure, 8 gms. of aluminium isopropoxide (Loba Chemie) was mixed with dilute phosphoric acid (6.2 ml. H3PO4 in 60 ml H2O) and stirred vigorously for 1 hr at 333 K. This was followed by the addition of CTAB (8 gm in 20 ml H2O) with subsequent addition of appropriate amount of tetraethyl orthosilicate (TEOS) (Merck) in tetramethyl ammonium hydroxide. The pH of the resulting gel was around 2.5. The molar composition of the resulting gel thus obtained was ... 

The dynamics of mixtures of surfactants with proteins is of great importance for many practical processes, such as coating of photographic films, where gelatine in mixtures with surfactants and surface active dyes adsorb at the interface. Hempt et al. (1985) studied the relaxation behaviour of gelatine solutions in presence and absence of surfactants (SDS, tetradecyl dimethyl phosphine oxide, cetyltrimethyl ammonium bromide, n-decanoic acid, perfluoro octanoic acid tetraethyl ammonium salt). 

Ruthenium forms several mixed azido complexes and one all-azido complex. The crystalline solids and their solutions are light sensitive. The tetraethyl-ammonium salt, [(C2Hs)4N]3 [Ru (N3)e], is made by adding 0.2 g K2 [Ru Cle] to a 40°C solution of 13 g sodium azide in 40 ml water and 20 ml ethanol. Ru(IV) is reduced to Ru(III) and nitrogen evolves. When the color changes from orange to red and the gas evolution ceases, an aqueous solution of 4 g tetraethylam-monium bromide is added and the solution is concentrated to yield brick-red crystals of the above complex salt [162]. 

The solution of 12.7 g of cerium (IV) ammonium nitrate in 10 ml of deionized water and the solution of 7 g of tetraethyl amine bromide in 10 ml of deionized water were mixed. The produced precipitate was dried at 80 °C in vacuum. 

The choice of organic solvents permits the occurrence of certain reduction reactions of alkyl halides which, if attempted in aqueous solutions, would rapidly be inhibited by the precipitation of insoluble products on the electrode. Under mildly cathodic conditions, the formation of metal alkyls occurs in high yields when alkyl halides are reduced at cathodes of low boiling metals in acetonitrile, DMF or propylene carbonate containing quaternary ammonium supporting electrolytes. " Whilst the formation of lead tetraethyl from ethyl bromide in DMF proceeds irrespective of the substitution of a sodium salt for the quaternary ammonium salt, the same change of electrolyte in propylene carbonate no longer leads to metal alkyl products. ... 

A11 chemicals were commercially available Tetraethyl orthosilicate (TEOS), Metoxy-ethanol NH OH (25%), NaOH, CTAB (Cetyltrimethylammonium bromide), and DTAB (n-dodecyl trimethyl ammonium bromide) (Putz Putz, 2012). 

It has recently been found that an appropriately prepared complex of tetraethyl-ammonium bromide with hydrogen bromide reacts with alkynes under anhydrous homogeneous conditions to yield bromoalkenes the addition product follows Markownikow s rule... 

The reaction of the isocyanate and the epoxide group, to produce an oxazolidone ring, was studied through the model reaction between the monofunctional epoxide, PGE and the bifunctional isocyanate MDI. Their reaction was followed by DSC. Two catalysts for the reaction were evaluated tetraethyl ammonium bromide (R NBr) and ethylmethylimidazole (EMI). 

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