4-isobutyl-2-methyl

These are effective high-octane gasoline additive oxygenates. The conversion of isobutane into isopropyl, methyl ketone, or isopentane into isobutyl, methyl ketone is illustrative. In this reaction, no branched carboxylic acids (Koch products) are formed. [Pg.166]

Phenyltoloxamine [2-(2-dimethylaminoethoxy)-diphenylmethane] hydrochloride [6152-43-8] M 291.8, m 119-120 , pK 9.3 (free base). Crystd from isobutyl methyl ketone. [Pg.332]

Chemical Designations - Synonyms Isobutyl methyl carbinol Methyl Alcohol MAOH 4-Methyl-2-pentanol MIBC MIC Chemical Formula (CH3)2CHCH2CH(OH)CH3. [Pg.262]

Chemical Designations - Syrwnyms Hexone Isobutyl methyl ketone Isopropylacetone 4-Methyl-2-pentanone MIBK MK Chemical Formula (CH3)2CHCH2COCH3... [Pg.262]

Trichodesmine, CigHa70gN, m.p. 160-1° (dec.), [ ]d+ 38° (EtOH), gives a methiodide, m.p. 202° (dec.), and on alkaline hydrolysis yields retronecine (p. 607) and dZ-lactic acid with isobutyl methyl ketone, the latter probably arising from a -ketonic acid first formed. ... [Pg.607]

A suspension of 6-aminopenicillanic acid (36.4 grams) in water was adjusted to pH 7.2 by the addition of N aqueous sodium hydroxide and the resulting solution was treated with a solution of 3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carbonyl chloride (46.1 grams) in isobutyl methyl ketone. The mixture was stirred vigorously for hours and then filtered through Dicalite. The layers were separated and the isobutyl methyl ketone layer was shaken with saturated brine. Then, precipitation of the sodium salt only took place after dilution of the mixture with ether. In this way there was obtained 60.7 grams of the penicillin sodium salt having a purity of 88% as determined by alkalimetric assay. [Pg.650]

Although APDC complexes are soluble in many organic solvents, it is found that 4-methylpent-2-one (isobutyl methyl ketone) and heptan-2-one (n-pentyl methyl ketone) are, in general, the most satisfactory for direct nebulisation into the air/acetylene flame used in atomic absorption spectroscopy. [Pg.171]

Isobutyl methyl ketone - glacial acetic acid — /i-hexane — tetrahydrofuran - dioxane (8-i-2-(-l-i-H-l). [Pg.167]

Dimethyl sulfate Sulfuric acid, dimethyl ester (8,9) (77-78-1) Isobutyl methyl ketone 2-Pentanone, 4-methyl- (8, 9) (108-10-1) Acetylene, diphenyl- (8) Benzene, , -(l,2-ethynediyl)bis- (9) (501-65-5)... [Pg.145]

This approach allowed us also to determine the difference in the surface potentials between mutually saturated water and an organic solvent namely, nitrobenzene, nitroethane and 1,2-dichloroethane, and isobutyl methyl ketone (IBMK). The qualitative data show a very strong influence of the added organic solvent on the surface potential of water, while the presence of water in the nonaqueous phase has practically no... [Pg.46]

Metals were extracted with isobutyl methyl ketone + amyl acetate (2 1) and chromatographed on cellulose layer... [Pg.365]

Ammonium tetramethylenedithiocarbamate - isobutyl methyl ketone From Author s own files... [Pg.179]

Isobutyl bromide, b371 Isobutyl chloride, cl79 Isobutyl chlorocarbonate, i68 Isobutyl ether, d458 Isobutyl mercaptan, m3 9 5 Isobutyl methyl ketone, m3 70... [Pg.247]

Certain lead(II) complexes were shown to display reversible redox behavior on the CV scale. Examples are Pb(II) complexes of 2(o-hydroxyphenyliminomethyl)-pyrrole and 2(o-hydroxyphenyliminomethyl)-thiophene. Their stability constants were also determined by polarography140. Anodic exchange reactions of extracted metal chelates were carried out with 1-pyrrolidinecarbodithioic acid in isobutyl methyl ketone141. [Pg.691]

N-methylcarbamate and N,N -dimethylcarbamates have been determined in soil samples by hydrolyses with sodium bicarbonate and the resulting amines reacted with 4-chloro-7-nitrobenzo-2,l,3-Oxadiazole in isobutyl methyl ketone solution to produce fluorescent derivatives [81]. These derivatives were separated by thin layer chromatography on silica gel G or alumina with tetrahydrofuran-chloroform (1 49) as solvent. The fluorescence is then measured in situ (excitation at 436 nm, emission at 528 and 537nm for the derivatives of methylamine and dimethylamine respectively). The... [Pg.232]

After Baishya et al. isobutyl methyl ketone extracts "Tc from the decay products of " Mo-labelled molybdate in the pH range 0.5-13.0. The use of complexing agents is unnecessary. [Pg.126]

Synonyms AI3-01229 BRN 0605399 Caswell No. 574AA CCRIS 2052 EINECS 203-550-1 EPA pesticide chemical code 044105 Ethyl isobutyl ketone FEMA No. 2731 Elexanone Elex-one Isobutyl methyl ketone Isohexanone Isopropylacetone Methyl isobutyl ketone 2-Methyl-4-pentanone MIBK MIK NSC 5712 RCRA waste number U161 Shell MIBK UN 1245. [Pg.789]

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... [Pg.1492]

METHYL AMYL ALCOHOL lsobutylmethyl carblnol, Isobutyl methyl- methanol, 4-Methyl-2-pentanol Combustible Liquid, II 2 2 0 ... [Pg.104]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...