Ethyl pentyl ketone

Ethyl pelargonate, e228 Ethyl pentyl ketone, o37 Ethyl phenyl ether, e36... 

Ethyl pentyl ketone, o35 Ethyl phenyl ether, e28 Ethyl picolinate, e214... 

Name Methyl propyl ketone Ethyl pentyl ketone... 

D.15) (D.15) 3-Octanone, octan-3-one, ethyl pentyl ketone, amyl ethyl ketone [106-68-3] FEMA 2803... 

Ethyl pentyl carbinol. See 3-Octanol Ethyl pentyl ketone. See 3-Octanone Ethyl perfluorobutyl ether. See Ethyl nonafluorobutyl ether Ethyl perfluoroisobutyl ether. See Ethyl nonafluoroisobutyl ether... 

Ethyl pentyl ketone 5-Methyl-3-heptanone Octanone-3 n-Pentyl ethyl ketone... 

Ethyl tert-pentyl ether Ethyl pentyl ketone Ethyl 2-(4-phenoxyphenoxy)-ethylcarbamate... 

Methylsulfinyl -pentyl ketone is prepared by the reaction of the reagent (0.1 mole) and 7.2 g (0.05 mole) of ethyl caproate yielding the crude product as a pasty crystalline mass. The material is dissolved in hot isopropyl ether (20 ml), petroleum ether (30 ml) is added, and the solution cooled to -15°. Filtration yields approx. 6 g of white plates, mp 40-44°. Recrystallization from isopropyl ether affords pure product, mp 45-47°. 

Alkyl Formate Production. In the past few years, formate esters have become an important class of organic compounds mainly because of their versatility as chemical feedstock (16,36-42), and as raw materials for the perfume and fragrance industry (43-46). Specifically, formate esters (methyl, ethyl, pentyl, etc.) have been used as starting material for the production of aldehydes (36), ketones ( ), carboxylic acids (37-40), and amides ( ). For example, methyl formate can be hydrolyzed to formic acid (39,40) or catalytically isomerized to acetic acid ( ). On the other hand, alkyl formates have been employed in the perfume and fragrance industry in amounts of approximately 1000 to 3000 Ib/year (43—46). Among the formates that have been commonly used for these purposes are octyl ( ), heptyl ( ), ethyl ( ), and amyl ( ) formates. 

Not only acetone, but also ethyl methyl ketone, isobutyl methyl ketone, methyl pentyl ketone, 4-methyl-2-hexanone, acetophenone, or cyclopentanone may be added to the base. 

August Sayer (U.S.P., No. 470,451) finds diethyl-ketone, dibutyl-ketone, di-pentyl-ketone, and the mixed ketones, [A] methyl-ethyl, methyl-propyl, methyl-butyl, methyl-amyl, and ethyl-butyl ketones are active solvents of pyroxyline and Paget finds that although methyl-amyl oxide is a solvent, that ethyl-amyl oxide is not. 

Acetone, acetic acid (glacial), lower alcohols, alcohol/ diethyl ether, amyl acetate, M-butyl acetate, butyl lactate, 7-butyrolactin, cyclopentanone, diethyl acetate, diethyl ketone, N,N-dimethylacetamide, dimethyl carbonate, dimethyl cyanamide, dimethylformamide, dimethyl maleate, dimethylsulfoxide, 2-ethoxyethyl acetate, ethyl acetate, ethyl amyl ketone, ethylene glycol ethers, ethyl lactate, 2-hexanone, methyl acetate, methyl ethyl ketone, methyl propyl ketone, M-methylpyrrolidone-2, 2-octanone, 1-pentanone, M-pentyl acetate, pyridine ... 

Lavender oil has been reported to contain more than 100 components, including linalool, linalyl acetate, lavandulyl acetate, terpinen-l-ol-4, 1,8-cineole, camphor, 3-phellandrene, terpinolene, a-thujene, n-hexanal, n-heptanal, methyl amyl ketone, ethyl amyl ketone, perillaldehyde, perillyl alcohol, r/-bomeol, a-terpineol, a-pinene, limonene, lactones (4-butanolide, dihydrocoumarin, 4-methyl-4-vinyl-4-butanolide, 5-pentyl-5-pentanolide, 4,4-dimethyl-2-buten-4-olide, etc.), sesquiterpenes (caryophyllene, cadinene, etc.), fatty acids (propionic acid, isobutyric acid, caproic acid, p-coumaric acid, etc.), and others (list and horhammer). " ... 

METHYL ISOBUTYL KETONE n-PENTYL FORMATE n-BUTYL ACETATE sec-BUTYL ACETATE tert-BUTYL ACETATE ETHYL n-BUTYRATE ETHYL ISOBUTYRATE ISOBUTYL ACETATE n-PROPYL PROPIONATE CYCLOHEXYL PEROXIDE DIACETONE ALCOHOL 2-ETHYL BUTYRIC ACID n-HEXANOIC ACID 2-ETHOXYETHYL ACETATE HYDROXYCAPROIC ACID PARALDEHYDE... 

Several reagents reduce aldehydes preferentially to ketones in mixtures of both. Very high selectivity was found in reductions using dehydrated aluminum oxide soaked with isopropyl alcohol and especially diisopropylcarbinol [755], or silica gel and tributylstamane [756]. The best selectivity was achieved with lithium trialkoxyalumimm hydrides at —78°. In the system hexanal/ cyclohexanone the ratio of primary to secondary alcohol was 87 13 at 0° and 91.5 8.5 at —78° with lithium tris(/er/-butoxy)aluminum hydride [752], and 93.6 6.4 at 0° and 99.6 0.4 at —78° with lithium tris(3-ethyl-3-pentyl-oxy)aluminum hydride [752],... 

The usual selectivities are observed, with aryl alkyl ketones and alkyl methyl ketones being reduced with high enantioselectivity (1 -> 2 and 3 -> 4)). That 5 is reduced to 6 with high , with the reducing enzymes differentiating between an ethyl and an -pentyl group, is even more impressive. 

Tertiary alcohols are oxidized in water-dioxane-NaOH to alkoxy radicals, wliich fragmentate to ketone and alkyl radicals R- (Eq. (216) ). The relative rate of cleavage decreases with R in the order sec -butyl > isopropyl > ethyl > propyl > pentyl > isobutyl > methyl 46 8). Likewise, the bisulfite adduct of cyclohexanone is converted in 20% yield to 4-hydroxyhexanoic acid lactone (160) and 3-hydroxycyclohexanoic acid lactone (161) by anodic fragmentation (Eq. (222) ) 469 ... 

M ethy Icy clo hexano 1 ds-2-Methylcyclohexanol trans-2-Methylcyclohexanol Methylcyclopentane 1 - M ethy Icy clo p ent ene 3-Methylcyclopentene Methyldichlorosilane Methylethyl ether Methylethyl ketone Methylethyl sulfide Methyl formate Methylisobutyl ether Methylisobutyl ketone Methyl Isocyanate Methylisopropyl ether Methylisopropyl ketone Methylisopropyl sulfide Methyl mercaptan Methyl methacrylate 2-Methyloctanoic acid 2- M ethy lp ent ane Methyl pentyl ether 2- M ethy lp ro p ane 2- M ethyl- 2- p rop ano 1 2-Methyl propene Methyl propionate Methylpropyl ether Methylpropyl sulfide Methylsilane... 

Baeyer obtained some dimeric nitroso compounds in the terpene series by the action of ethyl or pentyl nitrite on terpene ketones in the presence of small amounts of acetyl chloride or by means of pentyl nitrite and a few drops of concentrated hydrochloric acid in light petroleum solution 273 and similar procedures have been used by some other workers.274,275... 

Acid catalysis is preferable to base for the condensation of 5a-cholestan-3-one (341) with pentyl nitrite to form the hydroxyimino-ketone (342). The dioxime (343) afforded the [2,3-c]furazan 2-oxide (344) on oxidation with hypochlorite. Nitration of the 3-ketone (341) with ethyl nitrate and base gave the 2-nitro-enol (345) the derived 3-oxime (346) gave the furazan oxide (344) on reaction with acid. Nitration of 5a-cholestan-7-one gave the 6a- and 6)5-nitro-ketones (347), apparently the first epimeric pair of steroidal nitro-ketones to be... 

Pentyl ethanoate. See Amyl acetate Pentyl ether. See Diamyl ether n-Pentyl ethyl ketone. See 3-Octanone Pentyl formate n-Pentyl formate. See Amyl formate... 

Tricycio [5.2.1.decane-8-one Trimethylbenzyl alcohol (1 S)-(-)-Verbenone C10H14O2 t-Butylcatechol t-Butyl hydroquinone Camphorquinone Dihydroeugenol Ethyl 2-methoxybenzyl ether Menthalactone Pentyl 2-furyl ketone Phenylacetaldehyde dimethyl acetal C10H14O3 Amyl 2-furoate... 

Give the names and draw the structures for ketones where the methyl group in 30 is replaced with (a) ethyl and (b) pentyl. 

Lithium aluminium hydride modified with some chiral 1,2-aminodiols, for example (106), gives enantiomeric excesses of up to 82% in the reduction of aromatic ketones," and lithium tris[(3-ethyl-3-pentyl)oxy]aluminium hydride has been introduced as a chemoselective reagent (98—100%) for the reduction of aldehydes in the presence of ketones." Finally, the reagents AlCL-EtSH and AlBrs-EtSH have found further application in the cleavage of esters and lactones. 

Preparation by reaction of n-pentyl bromide with 5-allyl-2,4-dihydroxyacetophenone in the presence of potassium carbonate and potassium iodide in refluxing methyl ethyl ketone (43-44%) [2671,2678,2679]. 

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