L- -ethano

Ethanal. See Acetaldehyde A14-L Ethanaloxime. See Acetaldoxime A16-L Ethanamide. See Acetamide A16-R Ethaneamidine or Ethenylamidine. See u-Amino-o-imidoethane A223-L Ethanoic Acid. See Acetic Acid A25-L Ethanoic Anhydride. See Acetic Anhydride A29-R... 

Benz[g]isoquinoline, l,4-ethano-l,2,3,4-tetrahydro-nomenclature, 1, 20 Benz[g]isoquinolinequinone synthesis... 

When the 1-monoximes or dioximes of 4-acetyl-l-tetralones are hydrogenated in the presence of palladium, mixtures of diastereoisomeric 1-aminotetralones are formed. The m-aminoketone isomers readily form dehydrobenzoisoquinuclideines (3,4-disubstituted-1,4-dihydro-1,4-ethano-isoquinolines). Quaternary immonium salts prepared from these bicyclic imines are then converted by bases to bicyclic enamines [2,4-disubstituted-3-alkylidene-1,4-ethano-1,2,3,4-tetrahydroisoquinolines (25)]. 

If the solution were completely hydrolysed, the concentration of acetic (ethanoic) acid produced would be 0.01 molL-1. But the degree of hydrolysis is 0.0238 percent, therefore the concentration of acetic acid is 2.38 x 10 6 mol L 1. This is also equal to the hydroxide ion concentration produced, i.e. pOH = 5.62. 

Confining attention to the case in which the concentrations of the acid and its salt are equal, i.e. of a half-neutralised acid then pH = pKa. Thus the pH of a half-neutralised solution of a weak acid is equal to the negative logarithm of the dissociation constant of the acid. For acetic (ethanoic) acid, Ka = 1.75 x 10 5 mol L 1, pKfl = 4.76 a half-neutralised solution of, say 0.1M acetic acid will have a pH of 4.76. If we add a small concentration of H + ions to such a solution, the former will combine with acetate ions to form undissociated acetic acid ... 

Procedure. Dissolve 0.0393 g of pure copper(II) sulphate pentahydrate in 1 L of water in a graduated flask. Pipette 10.0 mL of this solution (containing about 100 jug Cu) into a beaker, add 5.0 mL of 25 per cent aqueous citric acid solution, render slightly alkaline with dilute ammonia solution and boil off the excess of ammonia alternatively, adjust to pH 8.5 using a pH meter. Add 15.0mL of 4 per cent EDTA solution and cool to room temperature. Transfer to a separatory funnel, add lOmL of 0.2 per cent aqueous sodium diethyldithiocarbamate solution, and shake for 45 seconds. A yellow-brown colour develops in the solution. Pipette 20 mL of butyl acetate (ethanoate) into the funnel and shake for 30 seconds. The organic layer acquires a yellow colour. Cool, shake for 15 seconds and allow the phases to separate. Remove the lower aqueous... 

Determination of nitrate as nitron nitrate Discussion. The mono-acid base nitron, C20H16N4, forms a fairly insoluble crystalline nitrate, C20H 16N4,HN03 (solubility is 0.099 g L 1 at about 20 °C), which can be used for the quantitative determination of nitrates [see Section 11.11(E)]. The sulphate and acetate are soluble so that precipitation may be made in sulphuric or acetic (ethanoic) acid solution. Perchlorates (0.08 g), iodides (0.17 g), thiocyanates (0.4 g), chromates (0.6 g), chlorates (1.2g), nitrites (1.9 g), bromides (6.1 g), hexacyanoferrate(II), hexacyanoferrate(III), oxalates, and considerable quantities of chlorides interfere, and should be absent. The figures in parentheses are the approximate solubilities of the nitron salts in g L-1 at about 20 °C. 

Prepare a buffer solution (pH 4.5) by dissolving 6 g acetic (ethanoic) acid and 13,6 g sodium acetate in 1 L of distilled water. Pipette 10 mL of a commercial sample of citrus fruit juice into a 1 L graduated flask and make up to the mark with oxygen-free water,... 

Spiroepoxy-endo-tricyclo[5.2.2.026]undeca-4,10-dien-8-one Spiro[4,7-ethano-lH- indene-8,2 -oxiran]-9-one, 3a,4,7,l,7a-tetrahydro- (146924-02-9)... 

C4H7Br 7051-34-5) see Betaxolol Ciraetropium bromide Flutoprazepam Naltrexone Prazepam A -cyclopropylmethyI-6,14-e do-ethano-7a-I(lS)-l-hy-droxy-1,2,2-trim ethylpropyijtetrahydronorthebaine (C30H43NO4 16524-65-5) sec Buprenorphine (2-cyc)opropyl-2-oxoethyl)triphenyIphusphomum bromide... 

Methyl-2,4,6-triazatricyclo[5.2.2.02 6]undeca-8-ene-3,5-dione (5,8-Dihydro-2-methyl-5,8-ethano-17/-[l,2,4]triazolo[l,2a] pyridazine-l,3(2//)dione)... 

This is essentially true, as is evidenced by the rates of esterification in alcoholic media of propan-l-ol with ethanoic acid [27] or of propan-2-ol with mesitoic acid [28], The absence of a specific microwave effect became apparent from several experiments carefully conducted in alcohols or in DMF under similar conditions but with microwave or classical heating [7]. 

A series of 3-aryl-5,8-dihydro-6,6,8-trimethyl-5,8-ethano-6H-pyrano [4, 3-e][l,2,4]triazine-4-oxides 193 was prepared (79JHC1389) by boiling a mixture of 192 and trimethyl orf/io-arylates. The effect of substituents on the chemical shifts of their 13C NMR spectra was studied. 

Synonyms Acetic acid, isobutyl ester Acetic acid, 2-methylpropyl ester AI3-15305 BRN 1741909 EINECS 203-745-1 FEMA No. 2175 IsoBuAc Isobutyl ethanoate 2-Methylpropyl acetate 2-Methyl-l-propyl acetate P-Methylpropyl ethanoate NSC 8035 UN 1213. 

Indenopyrene, see Indeno[l,2,3-crf pyrene l//-Indole, see Indole Indolene, see Indoline Inexit, see Lindane Inhibisol, see 1,1,1-Trichloroethane Insecticide 497, see Dieldrin Insecticide 4049, see Malathion Insectophene, see a-Endosulfan, p-Endosulfan Intox 8, see Chlordane Inverton 245, see 2,4,5-T lodomethane, see Methyl iodide IP, see Indeno[l,2,3-crf pyrene IP3, see Isoamyl alcohol Ipaner, see 2,4-D IPE, see Isopropyl ether IPH, see Phenol Ipersan, see Trifluralin Iphanon, see Camphor Isceon 11, see Trichlorofluoromethane Isceon 122, see Dichlorodifluoromethane Iscobrome, see Methyl bromide Iscobrome D, see Ethylene dibromide Isoacetophorone, see Isophorone a-Isoamylene, see 3-Methyl-l-butene Isoamyl ethanoate, see Isoamyl acetate Isoamylhydride, see 2-Methylbutane Isoamylol, see Isoamyl alcohol Isobac, see 2,4-Dichlorophenol Isobenzofuran-l,3-dione, see Phthalic anhydride 1,3-Isobenzofurandione, see Phthalic anhydride IsoBuAc, see Isobutyl acetate IsoBuBz, see Isobutylbenzene Isobutane, see 2-Methylpropane Isobutanol, see Isobutyl alcohol Isobutene, see 2-Methylpropene Isobutenyl methyl ketone, see Mesityl oxide Isobutyl carbinol, see Isoamyl alcohol Isobutylene, see 2-Methylpropene Isobutylethylene, see 4-Methyl-l-pentene Isobutyl ketone, see Diisobutyl ketone Isobutyl methyl ketone, see 4-Methyl-2-pentanone Isobutyltrimethylmethane, see 2,2,4-Trimethylpentane Isocumene, see Propylbenzene Isocyanatomethane, see Methyl isocyanate Isocyanic acid, methyl ester, see Methyl isocyanate Isocyanic acid, methylphenylene ester, see 2,4-Toluene-diisocyanate... 

Methylbutyl acetate, see sec-Amyl acetate 3-Methylbutyl acetate, see Isoamyl acetate 3-Methyl-l-butyl acetate, see Isoamyl acetate 3-Methylbutyl ethanoate, see Isoamyl acetate Methylbutyl ethyl ketone, see 5-Methyl-3-heptanone Methyl n-butyl ketone, see 2-Hexanone Methylcarbamate-l-naphthalenol, see Carbaryl Methylcarbamate-l -naphthol, see Carbaryl Methyl carbamic acid, 2,3-dihydro-2,2-dimethyl-7-... 

Methylenebis(oxy) ]bis(2-chloroformaldehyde), see Bis (2-chloroethoxy) methane Methylene chlorobromide, see Bromochloromethane Methylene dichloride, see Methylene chloride Methylene dimethyl ether, see Methylal Methyl 2,2-divinyl ketone, see Mesityl oxide Methylene glycol, see Formaldehyde Methylene glycol dimethyl ether, see Methylal Methylene oxide, see Formaldehyde Methyl ethanoate, see Methyl acetate (1 -Methylethenyl)benzene, see a-Methylstyrene Methyl ethoxol, see Methyl cellosolve 1-Methylethylamine, see Isopropylamine (l-Methylethyl)benzene, see Isopropylbenzene Methylethyl carbinol, see sec-Bntyl alcohol Methyl ethylene oxide, see Propylene oxide ds-Methylethyl ethylene, see cis-2-Pentene frans-Methylethyl ethylene, see frans-2-Pentene Methyl ethyl ketone, see 2-Bntanone Methylethylmethane, see Butane... 

Methylpropylene, see 2-Methylpropene 1-Methyl-l-propylethene, see 2 Methyl-1-pentene 1-Methyl-l-propylethylene, see 2-Methyl-l-pentene p-Methylpropyl ethanoate, see Isobutyl acetate Methyl propyl ketone, see 2-Pentanone... 

Pentyl ethanoate, see sec-Amyl acetate sec-Pentyl ethanoate, see Amyl acetate Penwar, see Pentachlorophenol Peratox, see Pentachlorophenol Perawin, see Tetrachloroethylene PERC, see Tetrachloroethylene Perchlor, see Tetrachloroethylene Perchlorethylene, see Tetrachloroethylene Perchlorobenzene, see Hexachlorobenzene Perchlorobntadiene, see Hexachlorobutadiene Perchlorocyclopentadiene, see Hexachlorocyclopentadiene Perchloro-l,3-cyclopentadiene, see... 

Senol, A. Vapor liquid equilibria of the systems ethyl ethanoate + 2-methyl-2-butanol, 2-methyl-l-propanol + 3-methyl-l-butanol, and cyclohexanol + benzyl alcohol at 101.32 kPa, J. Chem. Eng. Data, 43(5) 763-769, 1998. 

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