Monoethyl carbonate

C15H21NO5) see Gusperimus trihydrochloride 4-[hydroxy[5-[[(phenylmethoxy)carhonyl]amino]pen-tyl]amino]-4-oxobutanoic acid (C,7H24N20ft 106410-46-2) see Deferoxamine D-a-(4-hydroxyphenyl)-tx-(2-methoxycarbonyl-l-methyl-cthenylamino)acetic acid anhydride with monoethyl carbonate... 

The primary products of the hydrolysis of ethyl chloroformate are hydrogen chloride, ethanol and carbon dioxide, the latter two compounds formed from the rapid decomposition of an intermediate monoethyl carbonate, viz. 

FTDI. The authors remarked that the instrumental advances and the associated open-source project recently reported can spread out the use of this universal detector for food analysis. Furthermore, the inherent portability of the C D system could make it an ideal instrument for on-site food testing. One example that combines creativity and the instrumental simplicity of this home-made conductivity detection is the analysis of monoalkyl carbonates in carbonated alcoholic beverages (sparkling wine, beer, and mixed drinks) [151]. By using two detectors, the authors not only demonstrated the presence of monoethyl carbonate (MFC) in the selected drinks but also proposed that the low pH values were responsible for the larger concentrations of MEC observed in lager beer and mixtures of rum and cola. In addition, the possibility to control not only a C D detector but also a series of valves using open-source software (Arduino) has been recently demonstrated [152]. 

The Carbitol (monoethyl ether of diethylene glycol) was the Carbide and Carbon Chemicals Company product, which was distilled before use, b.p. 192-196°. It is a suitable solvent to render the reactants mutually soluble. Aqueous alkali with an ether solution of the nitrosamide does not yield diazomethane. 

Caprylic acid, see Octanoic acid Caprylic alcohol, see 1-Octanol Carbitol, see Diethylene glycol monoethyl ether Carbolic acid, see Phenol Carbon disulphide Carbon monoxide Carbon oxysulphide, see Carbonyl sulphide... 

Ethyl benzoylacetate has been prepared by the condensation (by means of sodium ethylate) of ethyl acetate with ethyl benzoate,1 acetophenone with ethyl carbonate,2 and acetophenone with ethyl oxalate, with subsequent heating 3 by treatment of ethyl phenylpropiolate4 or a-bromocinnamic acid 5 with concentrated sulfuric acid, and of ethyl diazoacetate with benzalde-hyde 6 by the condensation of benzene with the monoethyl ester of malonyl monoacid chloride and aluminum chloride,7 of benzoyl chloride with the product of the reaction of magnesium and ethyl chloroacetate in ether,8 of alcohol on benzoylacetimino ethyl... 

Pyrrolldlnone Dimethyl Formamlde Dimethyl Sulfoxide y-Butyrolactone 2-Pyrrolldone Dlethylene Glycol 2-Methoxy Ethanol Dlethylene Glycol Monoethyl Ether Carbon Disulfide... 

An oven-dried 100 ml flask with a side arm dosed with a septum is fitted with a magnetic stirring bar and a reflux condenser connected to a mercury bubbler. The flask is cooled to room temperature under nitrogen, charged with 4.36 g (0.025 mol) of adipic acid monoethyl ester followed by 12.5 ml of anhydrous tetrahydrofuran, and cooled to —18° by immersion in an ice-salt bath. Then 10.5 ml of 2.39 m (or 25 ml of 1 m) solution of borane in tetrahydrofuran (0.025 mol) is slowly added dropwise over a period of 19 minutes. The resulting clear reaction mixture is stirred well and the ice-salt bath is allowed to warm slowly to room temperature over a 16-hour period. The mixture is hydrolyzed with 15 ml of water at 0°. The aqueous phase is treated with 6 g of potassium carbonate (to decrease the solubility of the alcohol-ester in water), the tetrahydrofuran layer is separated and the aqueous layer is extracted three times with a total of 150 ml of ether. The combined ether extracts are washed with 30 ml of a saturated solution of sodium chloride, dried over anhydrous magnesium sulfate, and evaporated in vacuo to give 3.5 g (88%) of a colorless liquid which on distillation yields 2.98 g (75%) of ethyl 6-hydroxyhexanoate, b.p. 79°/0.7 mm. 

Hydroisomerization proceeds towards thermodynamic equilibrium which is approximately reached between the normal, mono-branched and di-branched structures at high degrees of overall conversion. Hydrocracking, however, is severe under these conditions. It is evident from Table II that monomethyl isomers are primary products the same is apparently true for monoethyl isomers although due to thermodynamic reasons lower concentrations are obtained. Dimethyl isomers including those containing a quarternary carbon atom are formed as secondary products. However, trimethyl isomers are formed very slowly so that their concentrations do not reach equilibrium values. It follows from this that the number of ramifications is deciding as to whether a branched isomer is a primary, secondary or tertiary product in hydroisomerization of n-octane and n-nonane. 

Isatoic anhydride has been prepared by prolonged refluxing of a mixture of anthranilic acid and ethyl chlorocarbonate,2 a reaction usually accompanied by formation of considerable monoethyl or/and diethyl isatoate or by action of phosgene upon anthranilic acid in a solution the acidity of which is moderated by occasional addition of sodium carbonate.2 The method described is based upon a patented procedure 3 in which, under conditions not fully specified, phosgene is passed into a solution of anthranilic acid hydrochloride with no subsequent adjustment of the acidity. 

The peroxide-induced ethylation of isobutyl chloride in the presence of 19% hydrochloric acid involved monoethylation at all of the carbon atoms in the molecule (Expt. 23). As might be expected, the chief product was l-chloro-2,2-dimethylbutane, produced via abstraction of the hydrogen atom attached to the tertiary carbon atom. Also formed were l-chloro-2-methylpentane (ethylation at a methyl group) and 3-chloro-2-methylpentane (ethylation at the carbon at< n holding the chlorine atom). Some 1-chlorohexane was also obtained in this case, its formation was undoubtedly due to telomerization of the ethylene with hydrogen chloride rather than by a reaction involving the isobutyl chloride. 

Ethers. Low yields of several compounds were obtained when ethvl ether was heated at 130-140 under ethylene pressure in the presence of di-t-butyl peroxide and hydrochloric acid (Expt. 26, Table V). Ethylation took place in the normal fashion to yield ethyl sec-butyl ether by monoethylation together with at least three ethers having eight carbon atoms di-sec-butyl ether, (ethylation at both secondary carbon atoms of the ethyl ether), ethyl 1-methyl-l-ethylpropyl ether (ethylation at the tertiary carbon atom of the primary product) and ethyl-1-methylpentyl ether formed by telomerization of the primary radical with two molecules of ethylene). Some Cio ethers were also formed. 

Some industrial solvents are found on the Proposition 65 Hst. As of January 1, 1993 (2), benzene, carbon tetrachloride, chloroform, methjlene chloride, 1,4-dioxane, 2-nitropropane, and perchloroethylene have been Hsted as substances known to the state of California to cause cancer. Ethji alcohol in alcohoHc beverages, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether acetate, ethjiene glycol monoethyl ether acetate, and toluene are Hsted as substances known to the state of California to cause reproductive toxicity. Because the Hst is being expanded periodically, it is necessary for a user of industrial solvents to maintain awareness of the Proposition 65 Hst. 

Controlled potential electrolyses of phthalic and pyromellitic anhydrides at the potential of the first wave gave highly colored, oxygen-sensitive solutions, which later were shown to give well-resolved esr spectra of the corresponding radical ions [55]. Phthalic anhydride has been reduced to phthalide on a preparative scale [109], but the reaction conditions employed (ethanol-water-ammonium carbonate) indicate that monoethyl phthalate must have been the actual substrate. An interesting reduction of 3,6-diphenylphthalic anhydride in the presence of trimethylsilyl chloride gives two types of dimeric species [110] ... 

Figure 2 The fraction of carbon monoxide as a function of the dielectric constant of the solvent used. The results were obtained by irradiation of the naked CdS ( ) and Q-TiOj/SiOj photocatalyst ( ). Solvents used were (a) carbon tetrachloride, (b) dichloromethane, (c) 2-propanol, (d) propionitrile, (e) ethylene glycol monoethyl ether, (f) acetonitrile, (g) sulfolane, (h) propylene carbonate, and (i) water.

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