Ammonium acid formate benzoate

Synonym Ammonia Water Amfbnioformaldehyde Ammonium Acetate Ammonium Acid Fluoride Ammonium Amidosulfonate Ammonium Amidosulphate Ammonium Benzoate Ammonium Bicarbonate Ammonium Bichromate Ammonium Bifluoride Ammonium Carbonate Ammonium Chloride Ammonium Citrate Ammonium Citrate, Dibasic Ammonium Decaborate Octahydrate Ammonium Dichromate Ammonium Disulfate-Nickelate (II) Ammonium Ferric Citrate Ammonium Ferric Oxalate Trihydrate Ammonium Ferrous Sulfate Ammonium Fluoride Ammonium Fluosilicate Ammonium Formate Ammonium Gluconate Ammonium Hydrogen Carbonate Ammonium Hydrogen Fluoride Ammonium Hydrogen Sulfide Solution Ammonium Hydroxide Ammonium Hypo Ammonium Hyposulfite Ammonium Iodide Ammonium Iron Sulfate Ammonium Lactate Ammonium Lactate Syrup Ammonium Lauryl Sulfate Ammonium Molybdate Ammonium Muriate Ammonium Nickel Sulfate Ammonium Nitrate Ammonium Nitrate-Urea Solution Ammonium Oleate... 

The heating of 2-(acylamino)benzoic acids or their alkyl esters with alcoholic ammonia or of ammonium 2-(acylamino)benzoates 5 results in reasonable yields of quinazolin-4(3/F)-ones 6. The reaction probably involves the initial formation of a 2-(acylamino)benzamide which is not... 

The particularly good activity against protein kinases of a-aminoquinazoline derivatives is borne out by their activity against both in vitro and in vivo models of human tumors. The examples that follow are but two of a number of compounds from this structural class that have emerged from the focus that has been devoted to this stmctural class. Nitration of the benzoate (78-1) with nitric acid affords the nitro derivative. Hydrogenation converts this to the anthrandate (78-2). In one of the standard conditions for forming quinazolones, that intermediate is then treated with ammonium formate to yield the heterocycle (78-3). Reaction of this last product with phosphorus oxychloride leads to the corresponding enol chloride (78-4). Condensation of this last intermediate with meta-iodoanUine (78-5) leads to displacement of chlorine and the consequent formation of the aminoquinazoline... 

Preservatives such as sodium benzoate, sorbic acid, and methyl and propyl parabens have been used in liquid and semisolid dosage forms. There have been reports that the parabens have been inactivated when used in the presence of various surfactants. This loss of activity was thought to be due to the formation of complexes between the preservative and the surfactant. The interaction between polysorbate (Tween) 80 and the parabens has been demonstrated by a dialysis technique (Ravin and Radebaugh, 1990). It has also been shown that molecular complexes form when the parabens are mixed with polyethylene glycol (PEG) and methylcellulose. The degree of binding was less than that observed with Tween 80. Sorbic acid also interacts with Tweens but does not interact with PEGs. The quaternary ammonium compounds are also bound by Tween 80, which reduces their preservative activity. 

C—C—O—C+N. The formation of oxazoles from a-acyloxy ketones and ammonium salts was discovered in 1937 when it was found that treatment of benzoin benzoate with ammonium acetate in hot acetic acid gave triphenyloxazole in excellent yield. It has been shown that the reaction proceeds by way of intermediate enamines (equation 113). The synthesis is quite general and it is only.limited by the difficulty of obtaining the starting keto esters, particularly formates. The latter are probably intermediates in the preparation of cycloalkenooxazoles from acyloins and formamide in hot sulfuric acid (equation 114). Another variation is to heat a mixture of an a-bromo ketone, the sodium salt of a carboxylic acid and ammonium acetate in acetic acid (equation 115). 

Flash rusting is the phenomenon of formation of small brown rust spots that appear very soon after application of waterbased systems directly to steel. The problem is more prominent when the steel surface is active (for example, after blasting) and the pH is <7. To combat this problem, flash-rust inhibitors are added to waterbased coatings. They should have good water solubility. Flat surfaces are relatively easy to protect, while weld areas are considered difficult. Flash-rust inhibition at a weld area can be achieved by a combination of different products. Flash-rust inhibitors are typically based on ammonium and sodium nitrites, benzoates, metaborates and phosphates, occasionally in combination with materials such as morpholine and amino methyl propanol. Some other organic salts are also used, such as amine salts of 2-mercaptobenzothiazolyl succinic acid and calcium or barium salts of linear alkyl naphthalene sulfonic acids. Typically they are used at levels of 0.1 to 1.0 % of the total mass of paint. They also help in preventing in-can corrosion upon storage of aqueous paint. 

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