Triethyl ammonium chloride

When a CF2H group is attached to an ammonium nitrogen, its fluorines are considerably shielded relative to the respective amine. Thus, the fluorine chemical shifts of difluoromethyl trialkyl ammonium salts are in the -113- to -115-ppm range, as exemplified by difluoromethyl triethyl ammonium chloride (Scheme 4.27). 

S-Aryltelluro vinyl aldehydes and ketones have been prepared by treating j -chlorovinyl carbonyl compounds or /(-acylvinyl triethyl ammonium chlorides with arene teUurolate... 

Functionalized polymers are of interest in a variety of applications including but not limited to fire retardants, selective sorption resins, chromatography media, controlled release devices and phase transfer catalysts. This research has been conducted in an effort to functionalize a polymer with a variety of different reactive sites for use in membrane applications. These membranes are to be used for the specific separation and removal of metal ions of interest. A porous support was used to obtain membranes of a specified thickness with the desired mechanical stability. The monomer employed in this study was vinylbenzyl chloride, and it was lightly crosslinked with divinylbenzene in a photopolymerization. Specific ligands incorporated into the membrane film include dimethyl phosphonate esters, isopropyl phosphonate esters, phosphonic acid, and triethyl ammonium chloride groups. Most of the functionalization reactions were conducted with the solid membrane and liquid reactants, however, the vinylbenzyl chloride monomer was transformed to vinylbenzyl triethyl ammonium chloride prior to polymerization in some cases. The reaction conditions and analysis tools for uniformly derivatizing the crosslinked vinylbenzyl chloride / divinyl benzene films are presented in detail. 

Two membrane functionalization tactics were employed in this research. In the first case, solid membranes of crosslinked PVBC were synthesized and subsequently functionalized via reactions with liquid phase reactants. In the second case, the monomer was functionalized with the desired reactive groups and purified before co-polymerization with VBC and divinylbenzene. The only membranes prepared by the second method contained vinylbenzyl triethyl ammonium chloride (VBTAC). This method was possible... 

Oxidation of indoles.5 Indoles react with K02 in conjunction with 18-crown-6 or benzyl(triethyl)ammonium chloride in THF to give products (1, 2, 3) that arise from an indoxyl hydroperoxide intermediate (a). 

Chloride ion in benzyl(triethyl)ammonium chloride can activate a nitrile group in dicyanomethylenedithiazole 42 which then cyclizes onto S-l to form the aromatic isothiazole ring and a new cyano group (Equation 17) <1997J(P1)3345>. The yield of isothiazole 86 is quantitative. 

Cyclohexyl - 3 - hydroxy - 3 - phenylpropyl)triethyl-ammonium chloride C2,H3e,ClNO = 354.0... 

Thiobenzophenone reacted in 20 min with dichlotocarbene, generated from chloroform and NaOH in the presence of benzyl(triethyl)ammonium chloride, in a two-phase system, to give 2,2-dichloro-3,3-diphenylthiirane in 80% yield (Equation 48) <1999HCA946>. 

AI3-14906 Ammonium, benzyltriethyl-, chloride Benzenemethanaminium, N,N,N-triethyl-, chloride Benzyl triethyl ammonium chloride Benzyltriethyl-ammonium chloride BTEAC EINECS 200-270-1 Sumquat 2355 TEAC TEBA TEBAC Triethyl-benzylammonium chloride N,N,N-Triethylbenzene-methanaminium chloride. Quaternary ammonium salt solvent for cellulose gelling Inhibitor in polyester resins intermediate In chemical manufxturing. Also used as a fibre dyeing auxilliary and phase transfer catalyst. Solid mp = 185° soluble in H2O (170 g/100 ml). Hexcel Janssen Chimica Zeeland Chem. Inc. 

This reducing agent is prepared from lithium aluminum hydride and triethyl-ammonium chloride (82% yield). It is more stable than aluminum hydride. 

In this paper we report experimental results on the kinetics of the polyaddition reaction in the melt and in solution (diglyme) using two different catalysts, namely tetrabutyl ammonium hydroxide (TBAH) and benzyl triethyl ammonium chloride (BTAC) at different temperatures. By simultaneous measurements of a, and in two cases we have also evaluated the critical branching parameters. 

Benzyl triethyl ammonium chloride (BTAC) as catalyst. 

When B is triethyl amine, a quaternary ammonium salt is formed. Since triethyl amine is volatile at the temperatures usually used for polyaddition, the catalyst would be depleted from the reaction mixture as the reaction progresses. In the case of a catalyst such as benzyl triethyl ammonium chloride, which would be expected to undergo thermal decomposition into benzyl chloride and triethyl amine, such a mechanism would predict why not only... 

Dichloromethane/aqueous NaOH 1.0 Benzyl triethyl ammonium chloride 1,2-Cyclododecanediol (50)... 

When the same procedure was employed adding 0.004 g (0.000019 mole) of benzyl triethyl ammonium chloride as a phase transfer catalyst in the reaction step, a white solid was obtained which dissolved in 5% aqueous sodium hydroxide and could not be reprecipitated. 

It is interesting to note that the very widely used Makosza catalyst , benzyl triethyl ammonium chloride, does not show high efficiency in this study. 4) Phosphonium ions are somewhat more effective and thermally stable than the corresponding ammonium catalysts and both are better than arsonium systems. 5) Substitution of the quaternary ion by alkyl rather than aryl groups yields more effective catalysts. 6) Reaction rates are generally greater in orf/io-dichlorobenzene (and presumably in other chlorocarbon media) than in benzene, and botli are better than heptane. In connection with this latter point, Ugelstad and coworkers have studied the reactions of quaternary ammonium phenoxide ions with alkyl halides in a variety of media and concluded that the... 

Use as a Nucleophile. The rate of nucleophilic substitution of 1,3-dichloropropane with potassium acetate in a range of polar solvents has been studied and correlates with the solubility of the salt. Quaternary ammonium salts (e.g., triethyl ammonium chloride, TEAC) catalyze these nucleophilic reactions by solubilizing the acetate anion. The relative rates of nucleophilic substitution of variously substituted 2-chloroethyl compounds with KOAc in DME and TEAC/MeCN solutions have a Unear free-energy relationships with the Taft substituent constant, a, showing that these reactions proceed through nucleophilic attack of acetate on RCH2CH2CI (eq 1). ... 

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