Pentanol, 4-methyl

ALCOHOLS,HIGHERALIPHATIC - SURVEY AND NATURALALCOHOLSMANUFACTURE] (Voll) 4-Methyl-2-pentanol [108-11-2]... 

Plasticizer Range Alcohols. Commercial products from the family of 6—11 carbon alcohols that make up the plasticizer range are available both as commercially pure single carbon chain materials and as complex isomeric mixtures. Commercial descriptions of plasticizer range alcohols are rather confusing, but in general a commercially pure material is called "-anol," and the mixtures are called "-yl alcohol" or "iso...yl alcohol." For example, 2-ethyIhexanol [104-76-7] and 4-methyl-2-pentanol [108-11-2] are single materials whereas isooctyl alcohol [68526-83-0] is a complex mixture of branched hexanols and heptanols. Another commercial product contains linear alcohols of mixed 6-, 8-, and 10-carbon chains. 

Reduction. Most ketones are readily reduced to the corresponding secondary alcohol by a variety of hydrogenation processes. The most commonly used catalysts are palladium, platinum, and nickel For example, 4-methyl-2-pentanol (methyl isobutyl carbinol) is commercially produced by the catalytic reduction of 4-methyl-2-pentanone (methyl isobutyl ketone) over nickel. 

The one-step route from 2-propanol coproduces diisobutyl ketone and acetone, and is practiced in the United States by Union Carbide (61). The details of a vapor-phase 2-propanol dehydrogenation and condensation process for the production of acetone, MIBK, and higher ketones have been described in recent patents (62,63). The process converts an a2eotropic 2-propanol—water feed over a copper-based catalyst at 220°C and produces a product mixture containing 2-propanol (11.4%), acetone (52.4%), MIBK (21.6%), diisobutyl ketone (6.5%), and 4-methyl-2-pentanol (2.2%). 

Methyl-2-pentanol [108-11-2] M 102.2, b 131-132", d 0.810, n 1.413. Washed with aqueous NaHC03, dried and distd. Further purified by conversion to the phthalate ester by adding 120mL of dry pyridine and 67g of phthalic anhydride per mole of alcohol, purifying the ester and steam distilling it in the presence of NaOH. The distillate was extracted with ether, and the extract was dried and fractionally distd. [Levine and Walti 7 Bio/ Chem 94 367 1931],... 

Chemical DesignationsHexyl acetate MAAc Methyllsobutylcarbinyl acetate 4-Methyl-2-pentanol, acetate 4-Methyl-2-pentyl acetate Chemical Formula CH3COOCH(CH3)CH2CH(CH 2-Observable Characteristics - Physical State (as shipped) Liquid Color. Colorless Odor Fruity mild, pleasant mild and nonresidual. 

Chemical Designations - Synonyms Isobutylmethyl carbinol Isobutyl methylmethanol MAOH Methylisobutyl carbinol 4-Methyl-2-pentanol MIC Chemical Formula (CH3)2CHCHjCH(OH)CH3. Observable Characteristics — Physical State (as shipped) Liquid Color Colorless Odor Sharp mild and nonresidual. 

Table 3-4. Acylation of 4-methyl-2-pentanol with acetic anhydride to produce the acetate, with the indicated N-substituted imidazoles as catalysts. 1451...

A mixture of the sulfide, ethylene glycol and hexane in a mantle-heated flask spontaneously overheated and exploded at an internal temperature of around 180°C. It had been intended to maintain the reaction temperature at 60°C, but since alcoholysis of the sulfide is exothermic, presence of the heating mantle prevented the dissipation of heat, and the reaction accelerated continuously until explosive decomposition occurred [1], An incident in similar circumstances involving interaction of the sulfide with 4-methyl-2-pentanol also led to violent eruption of the flask contents. 

Methyl- 1-pentanol 4- Methyl- 2-pentanol 3-Methyl-3-pentanol... 

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