Ethyl-benzene bromide

Fig. 8. Sensitizing dyes of the cyanine class. K. = N — alkyl or chalcogens (O, S, Se, Te) R = chloro, phenyl, or additional benzene ring R = methyl, ethyl, or hydrogen n = 0, 1, 2 and RPRIME, R " = alkyl or sulfoalkyl. Solubihty in methanol for a carbocyanine dye n = 1 X = S R = Cl R = ethyl. Cationic dye (R" = R " = ethyl anion = bromide) 9.5 mmol/T. neutral dye (R" = ethyl R " = sulfopropyl) 3.6 mmol/L anionic dye (R" = R = sulfopropyl ...

Ethyl sec-amyl ketone (5-methyl-3-heptanone) Ethyl benzene Ethyl bromide... 

Ethyl Benzene.h lttig s reaction, so-called fiom its (liscoveiei, is analogous to the synthetical method cin[iloycd by Wurt/ foi the prepar.ition of the aliphatic hydrocaibons, as in the foiiiiation of butane from ethyl bromide,... 

Ethyl alcohol, 49 Ethyl benzene, 141 Ethyl benzoate, 209 Ethyl bromide, 54 Ethylene bromide, 62 Ethyl ether, 59 Ethyl malonate, 96 Ethyl malonic acid, 97 Ethyl potassium sulphate, 50 Ethyl tartrate, 115 rotation of, 120 Lykman depressimeter, 37... 

Benzamido-1-[2-(3-indolyl)ethyl ] pyridinium bromide Indoramin Benzene... 

Silver fluoborate, reaction with ethyl bromide in ether, 46, 114 Silver nitrate, complexing with phenyl-acetylene, 46, 40 Silver oxide, 46, 83 Silver thiocyanate, 45, 71 Sodium amide, in alkylation of ethyl phenylacetate w ith (2-bromo-ethyl)benzene, 47, 72 in condensation of 2,4-pentanedione and 1 bromobutane to give 2,4-nonanedione, 47, 92 Sodium 2 ammobenzenesulfinate, from reduction of 2 mtrobenzenesul-finic acid, 47, 5... 

Ethyl benzene Ethyl bromide 2-Ethyl butyl acrylate Ethyl chloride Ethyl ether Ethyl formate 2-Ethyl hexyl acrylate Ethyl iodide Ethyl propionate Ethyl propyl ether Ethyl sulfide Ethylene bromide Ethylene chloride Ethylene glycol Ethylidebe chloride Fluorobenzene Formic acid Freon-11 Freon-12 Freon-21 Freon-22 Freon-113 Glycerol, 100%... 

More recently, Polish chemists have reported a synthesis of both aryl and aliphatic secondary nitramines by treating amine substrates with ethyl magnesium bromide followed by reaction with n-butyl nitrate (Equation 5.8). This method, which uses nonpolar solvents like hexane or benzene, has been used to synthesize aliphatic secondary nitramines, and At-nitro-A-methylanilines which otherwise undergo facile Bamberger rearrangement in the presence of acid. The direct nitration of At-unsubstituted arylamines usually requires the presence of an electron-withdrawing group. Reactions are retarded and yields are low for sterically hindered amines. 

Ethoxyethanol Ethyl chloride Epichlorhydrin 2-Ethoxyethylacetate Ethyl acetate Ethyl acrylate Ethyl alcohol Ethyl benzene Ethyl bromide Ethyl chloride Ethyl butyl ketone Ethyl ether Ethyl formate Ethylene chlorhydrin Ethylene dibromide Ethylene dichloride Ethylene oxide... 

Ethyl Benzene from brom-benzene and ethyl bromide. 

Preparation of N-(3-chloropropyl)-N -[2-(l,3-dioxanyl)-ethyl]-piperazine A solution of 30 g (0.15 mol) of N-[2-(l,3-dioxanyl)-ethyl]-piperazine and 11.8 g (0.075 mol) of l-bromo-3-chloropropane in 150 ml of dry benzene was refluxed with stirring for 5 hours. After cooling, the N-[2-(l,3-dioxanyl)-ethyl]-piperazinium bromide which had precipitated was filtered off, the filtrate was concentrated in vacuo and the residual oil was distilled. 14.1 g (68%yield) of N-(3-chloropropyl)-N -[2-l,3-dioxanyl)-ethyl]-piperazine which occurred as a light yellow oil were obtained. Boiling point 152°C to 155°C under 0.07 mm Hg (nD23 = 1.49 40). The disuccinate prepared in acetone and recrystallized from acetone melts at 104°C to 105°C on a hot stage microscope. 

Ethyl Benzene.—By the same synthesis another hydrocarbon has been made from mono-brom benzene and ethyl bromide which has the empirical formula CsHio, but which must be mono-ethylbenzene. 

Phenyl Phenylseleno Tellurium 0.79 g (5 mmol) of benzeneselenol are dissolved in 5ml of anhydrous tetrahydrofuran. Under nitrogen, 2.6 ml of 2 molar ethyl magnesium bromide (5.2 mmol) in diethyl ether are added, the mixture is heated under reflux for 2 h, cooled to 0°, and a solution of phenyl tellurium bromide, prepared from 1.02 g (2.5 mmol) of diphenyl ditellurium and 0.40 g (2.5 mmol) of bromine in tetrahydro-furan/benzene, is added. The reaction mixture is then warmed to 20°. stirred at 20" for 30 min, then 40 ml of low-boiling petroleum ether followed by aqueous ammonium chloride solution are added. The organic layer is separated, washed with saturated aqueous sodium chloride, dried with anhydrous magnesium sulfate, filtered, and evaporated. The residue (1.38g) is plaeed on a eolumn containing 120g of silica gel G, the product (Rf 0.60) is eluted with petroleum ether, the eluate is evaporated, and reddish needles are obtained yield 1.13 g (63%) m.p, 48° (petroleum ether). 

ETHYL BENZENE ETHYL BROMIDE ETHYL CHLORIDE ETHYL ETHER ETHYLENE CHLOROHYDRIN ETHYLENE DIAMINE ETHYLENE DIBROMIDE ETHYLENE DICHLORIDE ETHYLENE GLYCOL ETHYLENEIMINE ETHYLENE OXIDE DIETHYL KETONE DIETHYLENE GLYCOL GLYCOL ETHERS, ESTERS MEA, DEA. TEA VINYL ACETATE POLYMERS. COPOLYMERS... 

The ethyl bromide thus obtained is contaminated with a small amount of ether. If it be desired to prevent this, the well-cooled crude ethyl bromide, contained in a flask surrounded by a freezing mixture of ice and salt, is treated, before drying with calcium chloride, with concentrated sulphuric acid, added drop by drop and with frequent shaking, until it separates out in a layer under the ethyl bromide. The acid containing the dissolved ether is then run off (in a separating funnel) from the ethyl bromide, which is shaken up several times with ice water, dried with calcium chloride, and redistilled as before. For the preparation of ethyl benzene (which see) the ethyl bromide thus purified cannot be used. 

DICHLORC THANE DFCHLOROMETHANE DIPHENYL DIPHENYlMrrHANE DIPHENYL OXIDE DOWJHERM A ETKll ACETATE ETHYL ALCOHOL 100% ETHYLALCOKOL 95% ETHYL ALCOHOL 50% ETHYL BENZENE ETHYL BROMIDE ETHYL CHLORIDE... 

Fio. 1. Radioactivity distribution in ethylbenzene-i C after treatment of ethyl-(benzene-l-i C) with aluminum bromide. 

Ethyl benzene Ethyl benzoate Ethyl bromide Ethyl butylate (4079)... 

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