N -butyl nitrite

Cupferron, the ammonium salt of the N-nitroso derivative of phenylhydr-oxylamine, is prepared by passing ammonia gas into an ethereal solution of phenylhydroxylamine and n butyl nitrite ... 

Two phases are obtained this heterogenous mixture is vigorously stirred during the addition of n-butyl nitrite. 

The NO -ion might be formed from the nitrous acid ester if the latter was present as an impurity in the main reactant. Trials carried out with ethyl nitrite and n-butyl nitrite have demonstrated, however, that when these compounds are treated with an excess of hydrazine they do not undergo any chemical reaction accompanied by the formation of the nitrate ion. 

Hydroxypyrazole 1-oxides devoid of 4-substituents 214 were nitrated at the 4-position by HONO or n-butyl nitrite giving rise to the... 

Pressure-dependent gas phase NMR studies of syn-anti exchange in alkyl nitrite/C02 mixtures reported PiP values of 312,166,26, and <3 torr for MeONO, ethyl nitrite, n-propyl nitrite, and n-butyl nitrite, respectively [75], For all the nitrites studied, experimental rate constants were modeled using RRKM theory. This study concluded that the agreement between the rate constants calculated using RRKM... 

A solution of n-butyl nitrite (2.6 mol) and 3-nitro-o-xylene (2.0 mol) dissolved in 750 ml of dimethylformamide were cooled to -60°C and potassium t-butoxide (4.56 mol) dissolved in 750 ml of dimethylform-amide added over 3 hours. Thereafter, 300 ml water were added followed by 300 ml HOAc until a pH 5-6 reached. The mixture was then poured into 6 kg of ice water, the residue filtered, washed with water, and dried. The precipitate was placed in a suspension of about 3L of toluene at 80-90 °C 2 hours, the mixture filtered, dried, and the product isolated in 77% yield, 98% purity, mp = 190-192°C. 

SAFETY PROFILE Moderately toxic by ingestion, inhalation, and intraperitoneal routes. Mutation data reported. Flammable when exposed to heat or flame or by spontaneous chemical reaction. An oxidizer. Potentially explosive. To fight fire, use water, spray, foam, dry chemical. When heated to decomposition it emits toxic fumes of NOx. See also n-BUTYL NITRITE, NITRITES, and ESTERS. 

BUTYL-2-METH-YL-2-PROPENOATE see MHU750 BUTYL NAMATE see SGF500 n-BUTYL NITRITE see BRV500 BUTYL NITRITE (DOT) see BRV500 sec-BUTYL NITRITE see BRV750... 

Seventy grams (3.05 gram atoms) of sodium is dissolved in 1 1. of absolute ethanol (p. 142), and 500 g. (3.12 moles) of ethyl malonate is added to the resulting solution. The mixture is cooled in a cold water bath and stirred while 350 g. (3.40 moles) of dry n-butyl nitrite [Org. Syntheses Coll. Vol. 2, 108 (1943)] is added slowly. The ethanol and butanol are removed by heating under reduced pressure, and the residue is treated with a mixture of 1 kg. of crushed ice and 600 ml. of 6 fV sulfuric acid. The yellow oil that separates is removed by ether extraction, and the combined extracts are washed with saturated aqueous sodium bicarbonate solution, dried over sodium sulfate, and distilled. There is obtained 591 g. (87%) of ethyl isonitroso-malonate, b.p. 145-150°/3 mm. 

When photolyzed in oxygen, n-butyl nitrite was found to produce ozone readily. The rate of ozone production and the amount of ozone produced were comparable to the rate and amount observed in the photolysis of compound X. 

Examples 119 to 122 A 0.10 mole amount of the starting 3-(3,4-dimethoxyphenyD-propylene, 0.25 mole of n.-butyl nitrite, 0.5 liter of n -butyl alcohol, and 0.006 mole of a catalyst were charged into a reaction vessel. The reaction was carried out at a temperature of 60° C. for 1.5 hours. Then, the reaction mixture was hydrolyzed by adding 36 g of water at 55° C. for 80 minutes. 

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