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Methyl ethyl ether, oxidation

In a similar attempt, Decker and Eichler reduced A -methylnor-papaverinium phenolbetaine (VIII) with tin and hydrochloric acid and obtained i/i-laudanine, m.p. 112°, pierate, m.p. 162-3°, which was subsequently investigated by Spath and Epstein, who showed that on methylation it furnished dMaudanosine and that the ethyl ether on energetic oxidation yielded veratric acid (3 4-dimethoxybenzoic acid) and the methyl ethyl ether of nor-m-hemipinic acid. This clearly indicated that the free hydroxyl group was in the woquinoline nucleus, and its position was determined by the fact that on mild oxidation 7-methoxy-6-ethoxy-l-keto-2-methyl-l 2 3 4-tetrahydrowoquinoline, m.p. 95-6°, was produced, and on this basis these authors assigned formula (IX R = H R = CH3) to -laudanine. [Pg.194]

Desflurane is a fluorinated methyl ethyl ether identical to isoflurane except for the substitution of a chlorine by a fluorine atom (Figure 3.2). It is the least soluble of all the volatile anaesthetics with a similar blood/gas solubility to nitrous oxide (0.42). It is non-flammable under all clinical conditions. The vapour pressure of desflurane approaches 1 atm at 23°C making controlled administration impossible with a conventional vaporiser. A desflurane vaporiser is an electronically controlled pressurised device that delivers an accurately metered dose of vaporised desflurane into a stream of fresh gases passing through it. The MAC of desflurane (6.5% in adults) is the highest of any modern fluorinated agent but in common with these the value decreases in the elderly and in other circumstances (see below). [Pg.62]

Reacting alkyl phenyl tellurium oxides with 3-chloroperoxybenzoic acid in methanol or ethanol at 20° produced alkyl methyl (ethyl) ethers... [Pg.652]

METHYL ETHYL ETHER (540-67-0) Flammable gas (flash point -35°F/ —37°C), Violent reaction with strong oxidizers, sulfuric and nitric acids. Incompatible with permanganates, peroxides, ammonium persulfate, bromine dioxide. May be able to form unstable peroxides in storage. Attacks some plastics, rubber, and coatings. Flow or agitation of substance may generate electrostatic charges due to low conductivity. [Pg.782]

As methyl-ethyl ether can be prepared in both these ways the view that it and other ethers are oxides of radicals in which the two alkyl groups are joined directly to oxygen, appears to have a satisfactory experimental basis. [Pg.160]

Propanol, acetone and ethylene oxide, acetaldehyde methyl ethyl ether 91)... [Pg.108]

III-B-2.5. Summary of the Atmospheric Fate of Methyl Ethyl Ether, and the End Products of Its Oxidation... [Pg.299]

No detailed studies of the end products of the atmospheric oxidation of methyl ethyl ether have been carried out. From structure-activity relationships (Kwok and Atkinson, 1995), the major site of attack is expected to be at the CH2 group ... [Pg.299]

Difluoroethanol is prepared by the mercuric oxide cataly2ed hydrolysis of 2-bromo-l,l-difluoroethane with carboxyHc acid esters and alkaH metal hydroxides ia water (27). Its chemical reactions are similar to those of most alcohols. It can be oxidi2ed to difluoroacetic acid [381-73-7] (28) it forms alkoxides with alkaH and alkaline-earth metals (29) with alkoxides of other alcohols it forms mixed ethers such as 2,2-difluoroethyl methyl ether [461-57-4], bp 47°C, or 2,2-difluoroethyl ethyl ether [82907-09-3], bp 66°C (29). 2,2-Difluoroethyl difluoromethyl ether [32778-16-8], made from the alcohol and chlorodifluoromethane ia aqueous base, has been iavestigated as an inhalation anesthetic (30,31) as have several ethers made by addition of the alcohol to various fluoroalkenes (32,33). Methacrylate esters of the alcohol are useful as a sheathing material for polymers ia optical appHcations (34). The alcohol has also been reported to be useful as a working fluid ia heat pumps (35). The alcohol is available ia research quantities for ca 6/g (1992). [Pg.293]

Isoprene [78-79-5] (2-methyl-1,3-butadiene) is a colorless, volatile Hquid that is soluble in most hydrocarbons but is practically insoluble in water. Isoprene forms binary azeotropes with water, methanol, methylamine, acetonitrile, methyl formate, bromoethane, ethyl alcohol, methyl sulfide, acetone, propylene oxide, ethyl formate, isopropyl nitrate, methyla1 (dimethoxymethane), ethyl ether, and / -pentane. Ternary azeotropes form with water—acetone, water—acetonitrile, and methyl formate—ethyl bromide (8). Typical properties of isoprene are Hsted in Table 1. [Pg.462]

Capaurine, Ci,Hj2N(OH)(OMe)4. (Items 9, 16, 17, 22 list, p. 170.) M.p. 164°. Yields an 0-methyl ether, m.p. 152°, which on oxidation by iodine to the quaternary iodide, followed by reduction to the tetrahydro-base forms capauridine methyl ether, m.p. 142° capauridine must therefore be dZ-capaurine. Capaurine ethyl ether, C23H29O5N, m.p. 134°, on oxidation furnishes 3-ethoxy-4 5-dimethoxyphthalic acid. The methyl ether on oxidation by potassium permanganate gives hemipinic acid... [Pg.339]

Ethylene glycol monomethyl ether, see Methyl cellosolve Ethylenimine, see Aziridine Ethylene oxide Ethyl ether... [Pg.117]

Ethylene oxide Propylene oxide Butyl vinyl ether Ethyl vinyl ether Methyl vinyl ether Divinyt ether Furfuryl alcohol I.A-Dioxan Furan... [Pg.262]

SBA is primarily used as feedstock for methyl ethyl ketone. Other uses include hydraulic fluids, industrial cleaning compounds, paint remover, and an extracting agent for oils, perfumes, and dyes. TBA is used mostly as feedstock to make methyl methacrylate and glycol ethers (by reaction with ethylene or propylene oxides.) TBA is also a coproduct with PO, as covered in Chapter 11. [Pg.208]

Mixed C4 olefins (primarily iC4) are isolated from a mixed C olefin and paraffin stream. Two different liquid adsorption high-purity C olefin processes exist the C4 Olex process for producing isobutylene (iCf ) and the Sorbutene process for producing butene-1. Isobutylene has been used in alcohol synthesis and the production of methyl tert-butyl ether (MTBE) and isooctane, both of which improve octane of gasoHne. Commercial 1-butene is used in the manufacture of both hnear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE)., polypropylene, polybutene, butylene oxide and the C4 solvents secondary butyl alcohol (SBA) and methyl ethyl ketone (MEK). While the C4 Olex process has been commercially demonstrated, the Sorbutene process has only been demonstrated on a pilot scale. [Pg.266]

A study of the regioselectivity of the 1,3-dipolar cycloaddition of aliphatic nitrile oxides with cinnamic acid esters has been published. AMI MO studies on the gas-phase 1,3-dipolar cycloaddition of 1,2,4-triazepine and formonitrile oxide show that the mechanism leading to the most stable adduct is concerted. An ab initio study of the regiochemistry of 1,3-dipolar cycloadditions of diazomethane and formonitrile oxide with ethene, propene, and methyl vinyl ether has been presented. The 1,3-dipolar cycloaddition of mesitonitrile oxide with 4,7-phenanthroline yields both mono-and bis-adducts. Alkynyl(phenyl)iodonium triflates undergo 2 - - 3-cycloaddition with ethyl diazoacetate, Ai-f-butyl-a-phenyl nitrone and f-butyl nitrile oxide to produce substituted pyrroles, dihydroisoxazoles, and isoxazoles respectively." 2/3-Vinyl-franwoctahydro-l,3-benzoxazine (43) undergoes 1,3-dipolar cycloaddition with nitrile oxides with high diastereoselectivity (90% de) (Scheme IS)." " ... [Pg.460]

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... [Pg.1495]

Ethyl tert-butvl ether. Ethylene dibromide, Ethyl ether, Ethvl sulfide. 2-Heptanone, Methanol, 2-Methyl-1,3-butadiene, 2-Methvl-2-butene. Methyl chloride, Methylene chloride, Methyl iodide. Methyl mercaptan, 2-Methylphenol, Methyl sulfide. Monuron. Nitromethane, 2-Nitropropane, A-Nitrosodimethylamine, 1-Octene, 2-Pentanone, Propylene oxide, Styrene, Thiram, Toluene, Vinyl chloride, o-Xylene, tn-Xylene Formaldehyde cyanohydrin, see Acetontrile,... [Pg.1530]

N-Methylmorphinane. 2.7 g of the decahydro compound above in 25 ml of 85% phosphoric acid is refluxed for 70 hours and then poured onto ice. The aqueous phase is extracted with ether and the product is salted out with potassium carbonate. It is then taken up with ether, dried, and distilled at 130-132° at 0.7 mm of vacuo to give 1 g ofN-Methyl morphinane mixed with a small amount of octahydroisoquinoline, which can be removed by column chromatography. Use 0.5 g of product in 4 ml of low boiling petroleum ether and add onto the top of 30 g of aluminum oxide in a 50 ml buret or column. Elute with 20 ml portions of low boiling ether to which is added 0,0,0,1,3,5,5, and 5 ml of ethyl ether, respectively. The last three portions eluted over 0.3 g of purified product. [Pg.91]


See other pages where Methyl ethyl ether, oxidation is mentioned: [Pg.423]    [Pg.290]    [Pg.203]    [Pg.423]    [Pg.706]    [Pg.423]    [Pg.88]    [Pg.157]    [Pg.166]    [Pg.493]    [Pg.387]    [Pg.158]    [Pg.195]    [Pg.195]    [Pg.229]    [Pg.307]    [Pg.320]    [Pg.347]    [Pg.547]    [Pg.187]    [Pg.178]    [Pg.2]    [Pg.17]    [Pg.399]    [Pg.16]    [Pg.376]    [Pg.328]    [Pg.202]    [Pg.96]    [Pg.264]   
See also in sourсe #XX -- [ Pg.468 ]




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Ether ethylic

Ethers ethyl ether

Ethers oxidation

Ethyl ether

Ethyl methyl ether

Ethyl oxidation

Ethyl oxide

Methyl 3-oxid

Methyl oxide

Methyl, oxidation

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