Nitrate d’ethyle

Ethyl lactate and derivs (cont d) ethyl lactate nitrate 6 E306—E307 ethyl-2 (or 3)-nitrolactate nitrates 6 E307... 

Fig. IS. Molecular-weight dependence of sedimentation constant (rc) and intrinsic viscosity ( ), for various degrees of draining and coil expansion. Full line is for coiled polymers without draining. Dotted curve is for rigid ellipsoids of revolntion at various axial ratios p. Experimental points a, cellulose nitrate in ethyl acetate 729) b, cellulose nitrate in acetone (181) c, cellulose acetate in acetone (125) d., ethyl cellulose in ethyl acetate 223 ) e, ethyl bydroxyethyl cellulose in water (772)...

N-Dinitro-N-ethy l-p-toluenesulfonamide or 3,N-D in itro-N-ethy l-4-methy I benzenesu I-fonamide, N02.C8H3.CH3.S02.N(N02).C2Hb mw 289.27, N 14.53% yel plates (CCl4), mp 76°, sp gr 1.555. No prepn is given in the Ref, possibly by nitration of ethyl-p-toluenesulfonamide... 

LACTATE d ETHYLE (French) (97-64-3) Forms explosive mixture with air (flash point 115°F/46°C cc). Contact with strong oxidizers may cause fire and explosions. Incompatible with nitrates. 

The measurements available in the literature are summarized in table Vin-D-5 and shown in figure VIII-D-3. The study of Nielsen et al. (1991) is the only one conducted using an absolute method. The other determinations of the rate coefficient of OH with 1-propyl nitrate were performed using a relative rate method. The rate coefficients reported by different authors at ambient temperatures are in reasonable agreement. However, the lUPAC panel preferred value is based on the lowest measurement of Atkinson and Aschmann (1989) since the values for methyl nitrate and ethyl nitrate of Kerr and Stocker (1986a) and Nielsen et al. (1991) were systematically higher than those of Talukdar et al. (1997b). The rate coefficient recommended is = 5.8 x 10 cm molecule" s", with an estimated uncertainty of 30% (Atkinson et al., 2006). 

Cupric nitrate (3H2O) [10031-43-3 (3H2O) 3251-23-8 (anhydr)] M 241.6, m 114 , b 170 (dec), d 2.0. Crystd from weak aqueous HNO3 (0.5mL/g) by cooling from room temperature. The anhydrous salt can be prepared by dissolving copper metal in a 1 1 mixture of liquid NO2 and ethyl acetate and purified by sublimation [Evans et al. J Chem Soc, Faraday Trans 1 75 1023 1979], The hexahydrate dehydr to trihydrate at 26°, and the anhydrous salt sublimes between 150 and 225°, but melts at 255-256° and is deliquescent. 

It is prepd by the action of methylamine on 4-chloro-l-nitrobenzene (Ref 5) by the action of methyl iodide (Ref 6), or methyl sulfate on 4-nit roaniline (Ref 7) or by the hydrolysis of 4-nitro-N-methylformanilide with hot coned aq HC1 (Ref 8). In a study of the effect of nitric acid concn on the prods of the nitration of N,N-dimethylaniline to form Tetryl, it was isolated in low yield by the action of nitric acid, d 1.046g/cc, plus Na nitrite on N,N-dimethylaniline (Ref 10). A eutectic mixt with N-ethyl-4-nitroaniline has been patented as a stabilizer for NC (Ref 12). Studies at NPF indicate that 4-nitro-N-methyl-aniline is superior to Centralite, 2-nitrodiphenyl-amine, or Acardite in stabilizing. NC Refs 1) Beil 12, 586, (295) 1125 ... 

Ring D inversion seems to be a crucial step in biogenetic transformations of protoberberines to related alkaloids such as rhoeadine, retroprotoberberine, spirobenzylisoquinoline, and indenobenzazepine alkaloids. 8,14-Cyclober-bin-13-ol 478 derived from berberine (15) was successively treated with ethyl chloroformate, silver nitrate, and pyridinium dichromate (PDC) in dimethyl-formamide to give the keto oxazolidinone 479 (Scheme 98). Heating of 479 with 10% aqueous sodium hydroxide in ethanol effected hydrolysis, retro-aldol reaction, cyclization, and dehydration to provide successfully the... 

Other Methods of Preparation.—Ethyl 2-(D-ara6i no-tetrahydroxybutyl)-5-methyl-4-furoate has been prepared by heating D-glucose plus ethyl acetoacetate in aqueous alcohol without a catalyst,1 or from the same reagents (1 g. and 0.5 ml., respectively) in 0.5 ml. of 96% ethanol plus 1.5 ml. of water at room temperature in the presence of ferric chloride, zinc chloride (with small quantities of hydrochloric acid or of sodium hydroxide), cupric chloride, ferric sulfate, zinc sulfate, aluminum chloride, nickel chloride, or cobalt nitrate.18... 

Lead tetraacetate is added in small quantities, with stirring, to an ice-cold suspension of 11 g. of ethyl 3-(D-arabino-tetrahydroxybutyl)-5-methyl 4-furoate in 100 ml. of benzene plus 40 ml. of glacial acetic acid. Addition is stopped when there is a positive reaction with potassium iodide-starch paper. The mixture is stirred for a further ten minutes, filtered, and the benzene solution washed twice with water. The benzene layer is then dried with anhydrous sodium sulfate, filtered, and the filtrate evaporated to dryness. The residue (6 g.) is mixed with a solution of 7.5 g. of sodium hydroxide plus 20 g. of silver nitrate in 40 ml. of water, and heated for 40 minutes on a steam bath. The aqueous solution is filtered, acidified to Congo Red while being cooled with ice, and the crystals formed are removed by filtration, washed with ice-cold water, and dried over phosphorus pentoxide in the vacuum desiccator yield, 2.2 g. After recrystallization from water, the product has m. p. 234r-235°. 

Grosjean, D. Atmospheric reactions of ortho cresol gas phase and aerosol products, Atmos. Environ., 19(8) 1641-1652,1984. Grosjean, D. Photooxidation of methyl sulfide, ethyl sulfide, and methanethiol, Environ. Sci. Technol, 18(6) 460-468,1984a. Grosjean, D. Atmospheric reactions of styrenes and peroxybenzoyl nitrate, ScL Total Environ., 50 41-59, 1985. 

Ellis, W. R., Smythe, B. M., and The-harne, E. D., The Effect of Lead Oxide and Copper Surfaces on the Thermal Decomposition of Ethyl Nitrate Vapor,... 

A warm solution of 3 g. of ammonium nitrate in 50 ml. of anhydrous ethanol is added to a mixture of 44 g. (52.4 ml., 0.79 mole) of acrolein and 144 g. (160 ml., 0.97 mole) of ethyl orthoformate, and the mixture is allowed to react at room temperature for 6-8 hours (Note 1). The light-red solution is filtered, 4 g. of sodium carbonate is added, and the reaction mixture is distilled from the sodium carbonate through a good column (Note 2). The fraction boiling at 120-125° is acrolein acetal and weighs 73-81 g. (72-80%) d 1.398-1.407 (Note 3). ... 

D) J.B. Levy, "The Effect of Additives on the Thermal Decomposition of Ethyl Nitrate ,... 

Trinitro-i-etbylnitraminopbenol mp 105—6° may be prepd by creating N-ethyl-N-(2,3,4,6 tetran irrnphenyl)nirramiQe with boiling water or by nitration of the trinicroetfaylaminophenol above with nitric acid (d 1.52)... 

Ethyl d initrophenols. Beil (Ref 1) lists only one compd of undetermined structure, with an expl Pb salt. Prepd by nitrating o-ethylphen-ol with cold fuming HN03 Refs l)Beil. 6. 471 2)W.Suida S.Plohn, Monatsh 1, 181 (1880)... 

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