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Potassium acetate benzoate

Such catalysts include potassium acetate, sodium benzoate, certain basic inorganic salts (IS, 21, 22), lead oleate and other lead salts (23), alkali soaps (23), and metal naphthenates (2Ji). Also at 125°, trimers of phenyl isocyanate form in high yield catalyzed by A-methylmorpholine in the presence of ethyl alcohol (26). Epoxides have been reported to be active for trimerization in the presence of a small amount of amine (26, 27). Ethylene carbonate also is effective in production of trimer (28). Recently... [Pg.397]

Potassium acetate (1.20 g, 12.2 mmol, 2 eq.) was added at ambient temperature to a magnetically stirred mixture of 1.28 g 3-fluorophenyldiazonium tetrafluoroborate (6.0 mmol) and 5 mol % 18-crown-6 in 60 mL methyl benzoate. Stirring was continued for 90 min. The red mixture was filtered, and the filtrate was washed with brine and water. The organic layer was dried over Na2S04 and evaporated, and the residue was chromatographed over alumina (30-50 g) using 10% ether/hexane as the eluent, the collected fraction was further distilled to afford 0.48 g methyl 3 -fluorobiphenyl-2-carboxylate as oil, in a yield of 34%. [Pg.1250]

Phenylpropyl) tetrahydrofuran Phenyl salicylate a-Pinene p-Pinene Piperidine Pi peri ne d-Piperitone Piperonyl acetate Piperonyl isobutyrate Potassium acetate Propenylguaethol Propionaldehyde Propyl acetate Propyl alcohol p-Propyl anisole Propyl benzoate Propyl butyrate Propyl cinnamate Propyl disulfide Propyl formate Propyl 2-furanacrylate Propyl heptanoate Propyl hexanoate 3-Propylidenephthalide Propyl isobutyrate... [Pg.5291]

Aromatic and aliphatic isocyanates can undergo self polymerization to form stable resinous trimer structures. The reaction is catalyzed by many materials including calcium acetate, potassium acetate, sodium formate, sodium carbonate, sodium methoxide, triethylamine, oxalic acid, sodium benzoate in dimethylformamide, and a large number of soluble metal... [Pg.224]

There are several reports in the literature of tertiary amine catalysis of reactions which appear to be of the phase transfer type. The first such example is the reaction of potassium benzoate with benzyl chloride to give benzyl benzoate, reported in a German patent issued in 1913 to be catalyzed by triethylamine [26]. Merker and Scott in 1961 utilized in situ quaternary ammonium carboxylate formation to facilitate the same esterification reaction [27]. Hennis and coworkers rediscovered and clarified amine catalysis in the reaction of benzyl chloride with potassium acetate... [Pg.7]

A mixture of 800 g of potassium o-bromo-benzoate, 1,500 ml of bis-(2-methoxyethyl)ether, 355 g of N-ethyl-morpholine, 375 g of 2,3-dimethylaniline, and 30 g of cupric acetate is heated gradually with stirring to 140°C over a period of 90 minutes. The hot reaction mixture is then acidified with 260 ml of concentrated hydrochloric acid and the acidified mixture divided into 2 equal portions. One liter of water is added to each portion and the mixtures allowed to cool. The N-(2,3-dimethylphenyl)anthranllic acid which separates upon cooling is collected by filtration and recrystallized from bis(2-methoxyethyl)ether MP 229° to 230°C (corr.). [Pg.919]

Benzoguanamine has been prepared by the reaction of dicyandiamide with benzonitrile in a sealed tube at 220-230°,2 with an excess of benzonitrile in the presence of piperidine and potassium carbonate,3 with benzonitrile in a solvent in the presence of a basic catalyst,4 and with benzamidine hydrochloride at elevated temperatures.5 It has also been prepared from the reaction of biguanide acetate with benzamidine hydrochloride,5 or of bigua-nide sulfate with benzoyl chloride in an alkaline medium,7 and by the distillation of guanidine benzoate.5... [Pg.8]

Hydroxyethyl)carbazole can be oxidized with copper(II) oxide-potassium hydroxide at 240°C to the carbazol-9-ylacetic acid the benzoate ester of the alcohol was cleaved to regenerate alcohol using phenyl Grignard reagent. The 9-acetic acid is also produced by alkaline hydrolysis of the corresponding nitrile. ... [Pg.113]

While high polymers of /3-lactones can also be formed by cationic polymerization, most of the commercial production seems to be by the anionic route. Carboxylate salts such as sodium acetate or benzoate are commonly the initiators, but other nucleophiles, such as triethylamine, betaine, potassium f-butoxide, aluminum and zinc alkoxides, various metal oxides and tris(dimethylamino)benzylphosphonium chloride (the anion of which is the initiator), are of value. Addition of crown ethers to complex the counter cation increases the rate of reaction. When the reaction is carried out in inert but somewhat polar organic solvents, such as THF or ethyk acetate, or without solvent, chain propagation is very fast and proceeds without transfer reactions. [Pg.388]

CREAM BASE - Water (Aqua), Caprylic/Capric Triglyceride, Cetyl alcohol, Glyceryl Stearate, PEG-100 Stearate, Glycerin, Prunus dulcis, Vitis vinifera, Benzyl alcohol, Phenoxyethanol, Potassium sorbate, Toeopheryl acetate, Sodium benzoate, Citric acid, Tocopherol... [Pg.222]

With the exception of the Fischer reaction, the general methods employed for the formation of the glycoside bond result in the formation of glycoside acetates (or benzoates). Deacylation is accomplished by treatment with alkali, to which the glycoside bond is stable, unless the bond approximates to the ester type. The original method of deacetylation was by quantitative saponification with sodium hydroxide, potassium hydroxide, or barium hydroxide. It was noted, however, that, in anhydrous media, much less than the theoretical amount of alkali was required, and the reaction has since been made entirely catalyt.ic, with considerable gain in efficiency and convenience. The same methods have been employed for debenzoylation. [Pg.171]


See other pages where Potassium acetate benzoate is mentioned: [Pg.149]    [Pg.10]    [Pg.211]    [Pg.119]    [Pg.120]    [Pg.298]    [Pg.155]    [Pg.238]    [Pg.3]    [Pg.341]    [Pg.732]    [Pg.362]    [Pg.589]    [Pg.63]    [Pg.313]    [Pg.480]    [Pg.174]    [Pg.180]    [Pg.91]    [Pg.535]    [Pg.123]    [Pg.22]    [Pg.69]    [Pg.201]    [Pg.275]    [Pg.308]    [Pg.222]    [Pg.436]    [Pg.183]    [Pg.30]    [Pg.79]   
See also in sourсe #XX -- [ Pg.233 ]




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Potassium benzoate

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