Isoamyl Ketone

Methyl Isoamyl Ketone. Methyl isoamyl ketone [110-12-3] (5-methyl-2-hexanone) is a colorless Hquid with a mild odor. It is produced by the condensation of acetone and isobutyraldehyde (164) in three steps which proceed via the keto-alcohol dehydration to 5-methyl-3-hexen-2-one, and hydrogenation to 5-methyl-2-hexanone. [Pg.493]

Isobutyraldehyde is commonly available as a by-product of propylene/Oxo hydroformylation. Methyl isoamyl ketone is used as a solvent for ceUulose esters, acryHcs, and vinyl polymers. It is available in the United States from Eastman (Kingsport, Tennessee) (47) and Union Carbide (South Charleston, West Virginia) and was priced at 1.42/kg in October 1994. [Pg.493]

Historically, isobutyl alcohol was an unwanted by-product of the propylene Oxo reaction. Indeed, isobutyraldehyde the precursor of isobutyl alcohol was occasionally burned for fuel. However, more recentiy isobutyl alcohol has replaced -butyl alcohol in some appHcations where the branched alcohol appears to have preferred properties and stmcture. However, suppHes of isobutyl alcohol have declined relative to overall C-4 alcohols, especially in Europe, with the conversion of many Oxo plants to rhodium based processes which give higher normal to isobutyraldehyde isomer ratios. Further the supply of isobutyl alcohol at any given time can fluctuate greatly, since it is the lowest valued derivative of isobutyraldehyde, after neopentyl glycol, methyl isoamyl ketone and certain condensation products (10). [Pg.358]

About 69% of the total 1988 U.S. consumption of isobutyraldehyde, went into the production of isobutyl alcohol and isobutyraldehyde condensation and esterification products. The other principal isobutyraldehyde derivative markets (as a percentage of total 1988 U.S. isobutyraldehyde consumption) are neopentyl glycol (15%) isobutyl acetate (6%) isobutyric acid (5%) isobutyUdene diurea (2.5%) and methyl isoamyl ketone (1.7%). [Pg.380]

Methyl isoamyl ketone (MIAK), a product derived from the aldol condensation of isobutyraldehyde and acetone, is used principally as a solvent for lacquers, ceUulosics, and epoxies. [Pg.380]

Other modifications of the polyamines include limited addition of alkylene oxide to yield the corresponding hydroxyalkyl derivatives (225) and cyanoethylation of DETA or TETA, usuaHy by reaction with acrylonitrile [107-13-1/, to give derivatives providing longer pot Hfe and better wetting of glass (226). Also included are ketimines, made by the reaction of EDA with acetone for example. These derivatives can also be hydrogenated, as in the case of the equimolar adducts of DETA and methyl isobutyl ketone [108-10-1] or methyl isoamyl ketone [110-12-3] (221 or used as is to provide moisture cure performance. Mannich bases prepared from a phenol, formaldehyde and a polyamine are also used, such as the hardener prepared from cresol, DETA, and formaldehyde (228). Other modifications of polyamines for use as epoxy hardeners include reaction with aldehydes (229), epoxidized fatty nitriles (230), aromatic monoisocyanates (231), or propylene sulfide [1072-43-1] (232). [Pg.47]

Methyl isoamyl ketone Methyl tsobutyl carbinol Methyl isobutyl ketone Methyl isocyanate Methyl Isopropyl ketone... [Pg.88]

Methyl formate Methyl iodide Methyl isoamyl ketone Methyl isobutyl carbinol Methyl isobutyl ketone, see Hexone CT CT CT CT... [Pg.261]

Methylidine chloride, 6 249 Methylidyne complex, 26 949 Methyliminodiacetic acid (MIDA), 19 265 Methyl iodide, 14 376 Methyl ionone, 3 232 a-iso-Methylionone, 24 562, 566 a-n-Methylionone, 24 565 p-iso-Methylionone, 24 566 P-n-Methylionone, 24 565 Methyl isoamyl ketone (MIAK),... [Pg.579]

Toxicology. Methyl isoamyl ketone (MIAK) is an irritant of the eyes and, at high concentrations, causes narcosis in animals. [Pg.483]

Katz GV, Renner ER Jr, Terhaar CJ Sub-chronic inhalation toxicity of methyl isoamyl ketone in rats. Fundam Appl Toxicol 6 498-505, 1986... [Pg.483]

A dry 1-1. three-necked flask fitted with a mercury-sealed stirrer, a calcium chloride drying tube, and a 500-ml dropping funnel, protected by a calcium chloride drying tube, is surrounded by an ice-salt mixture at —11° Anhydrous methanol (130 ml) (Notes 1 and 2) and 161 g (1 mole) of /3-chlorovinyl isoamyl ketone (p 27) are poured into the flask (Note 3). A solution of 43 g (1 04 moles) of sodium hydroxide (97%) and 350 ml of absolute methanol (Note 4) is added dropwise with stirring over a period of 2 hours, during which time the bath temperature is kept between —11° and —8°... [Pg.79]

ETHYL ETHER, 34, 16, 49 Chlorourea, see Monochlorourea (3-ChloroviNYL isoamyl ketone, 32, 27, 79... [Pg.88]

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