Phenyl dimethyl carbinol

Most of the phenol used in the United States is made by the oxidation of cumene, yielding acetone as a byproduct. The first stqn in the reaction yields cumene hydroperoxide, which decomposes with dilute sulfuric acid to the primary products, plus acetophenone and phenyl dimethyl carbinol. Other processes include sulfonation, chlorination of benzene, and oxidation of benzene. The compound is purified by rectification. 

When cumene hydroperoxide is heated to cumene cracking temperatures, at least partial decomposition probably occurs. Thus, it is desirable to measure the inhibitor action of the decomposition products of cumene hydroperoxide. Some low-temperature thermal decomposition products which were identified (by chemical and mass spectroscopic analyses) are acetophenone, phenyl-dimethyl-carbinol, a-methylstyrene, phenol, acetone, and methyl alcohol. Kharasch, Fono, and Nudenberg (7) obtained similar results. According to them, the chief decomposition products at 158° are acetophenone and phenyl-dimethyl-carbinol, with acetophenone becoming relatively more important at higher temperatures. Since the temperature used for the cracking reaction is above 300°, acetophenone is probably the most important decomposition product. The equilibrium constant for the adsorption of cumene hydroperoxide and some of the individual decomposition products on catalytic sites are included in Table I. 

In addition to phenol and acetone, there are obtained minor amounts of other products such as acetophenone, a-methylstyrene and phenyl dimethyl carbinol. The yield of phenol on benzene is about 85%. Phenol is a colourless crystalline solid, m.p.41°C. 

Molding resins coatings, electrical insulating resins Meta or p(2m-isopropenyl-phenyl-dimethyl-carbinol France 1,574,376 1969 Farbenfabriken Bayer A.G. 

There exist three isomers of phenyl-propyl alcohol, all of which have been prepared and described, and, although not yet introduced into commerce, may eventually be so. These are as follows Benzyl-methyl-carbinol, CgHj. CHj. CH(OH)CHg, boiling at 215° phenyl-ethyl-carbinol, CgHg. CH(OH)CH2. CHg, boiling at 221° and benzyl-dimethyl-carbinol, C Hg. C(OH)(CHg)2, melting at 21° and boiling at 225°. 

ISOPROPYLCYCLOHEXANOL see 100300 p-ISOPROPYLCYCLOHEXANOL see 100300 ISOPROPYL-2,4-D ESTER see lOYOOO N-ISOPROPYL-P-DIHYDROXYPHENYL-P HYDROXYETHYLAiMINE see D1W6OO ISOPROPYL DIMETHYL CARBINOL see AOK750 4-ISOPROPYL-2,3-DIMETHYL-1 -PHENYL-3-PYRAZOLIN-5-ONE see INYOOO ISOPROPYL EPOXYPROPYL ETHER see IPDOOO ISOPROPYLESTER KYSELINY DUSITE see IQQOOO ISOPROPYLESTER KYSELINY KARBAMINOVE see lOJOOO... 

Synonyms Benzyl dimethyl carbinol 0,0-Dimethyl phenethy I alcohol 1,1-Dimethyl-2-phenylethanol DMBC 1-Phenyl-2-methyl-2-propanol... 

Dimethyl-3-phenyl-1 -propanol 0,0-Dimethyl-5-phenylpropyl alcohol 2-Methyl-4-phenyl-2-butanol 2-Methyl-4-phenylbutan-2-ol Phenylethyl dimethyl carbinol 2-(2-Phenylethyl )-2-propanol 4-Phenyl-2-methyl-2-butanol 4-Phenyl-2-methyl-butanol-2 1-Propanol, 1,1-dimethyl-3-phenyl-Classification Aromatic alcohol Empirical CnHieO... 

The condensation of thiophene with ketones, under the influence of 70% H2SO4, leads to di-2-thienylmethane derivatives. With acetone, 2,2-di-(2-thienyl) propane (97) is obtained. The condensation of thiophene with dimethyl phenyl carbinol, methyl diphenyl carbinol, and f-butylalcohol, in the presence of SnCU gave (98), (99), and 2,5-di-f-butylthiophene, respectively. Triphenyl carbinol does not... 

Cycolac KJM 9003-56-9 Dichlorolsopropyl Ether 63283-80-7 Dimethyl Phenyl Carbinol 617-94-7... 

Dimethyl Phenyl Carbinol 65431-33-6 Trypaflavin Glycolic Acid Butyl Ester... 

Benzylic Reactivity. 2,5-Dimethyl-3,4-dinitrothiophen has been condensed with aromatic aldehydes to give 3,4-dinitro-2,5-distyryl-thiophens. " An improved synthesis of 3-nitro-2-styryl-thiophens involves bromination of 3-methyl-2-nitrothiophen with A-bromosuccinimide, followed by a modified Wit-tig reaction. From 2,5-di(chloromethyl)thiophen, the phosphonate was prepared by the Arbusov reaction, which was used for the preparation of 2,5-distyryl-thiophens. Trichloromethyl(thienyl)carbinols have been converted into the corresponding fluoro-derivatives through the reaction with phenyl-tetrafluorophosphorane. The liquid-phase catalytic oxidation of phenyl-(2-thienyl)methane in acetic acid in the presence of cobalt(ll) acetate and sodium bromide has been investigated. ... 

By oxidation of the labeled products [28 and 29 or 30ab] to labeled benzoic and substituted benzoic acids followed by assay of these purified acids for carbon-14, the relative migratory abilities of the Ar groups with respect to phenyl were determined. Thus in the dehydration, with phosphorus pentoxide in xylene, of a series of carbinols (27, X = OH), the following migratory aptitudes (Ar Ph) were determined p-xenyl, 1-3 m-tolyl, 1-6 p-i-propylphenyl, l-8 3,4-dimethyl-phenyl, 1-9 p-tolyl, 2-0 p-ethylphenyl, 2-2 p-t-butylphenyl, 3-2 and p-anisyl, 21-2. Burr (1953) demonstrated the p-tolyl phenyl migration ratio to be 2-5 during the solvolysis of 2-phenyl-2- p-tolylethyl-l-i C tosylate (27, Ar = p-tolyl, X = tosyl). In a series of deaminations of the primary amines (27, X = NH ) and 31 (Ar = p-tolyl and o-tolyl) the p-tolyl phenyl (1 2), p-biphenyl phenyl (1 0) p-anisyl phenyl... 

Butanol, 2-methyl-4-phenyl-. See Dimethyl phenethyl carbinol... 

Synonyms Benzyl dimethyl carbinyl acetate Benzyl propyl acetate Dimethyl benzyl carbinoacetate a,a-Dimethylphenethyl acetate a,a-Dimethylphenethyl alcohol acetate 1,1-Dimethyl-2-phenyl acetate DMBCA Definition Obtained by acetylation of dimethylbenzyl carbinol Empirical C12H16O2 Formula C6HgCH2C(CH3)200CCH3... 

Hazardous Decomp. Prods. Heated to decomp., emits acrid smoke and fumes Uses Fragrance in cosmetics synthetic flavoring agent in foods and pharmaceuticals Regulatory FDA 21CFR 172.515 FEMA GRAS Manuf/Distrib. Advanced BioTech http //www.adv-bio.com Dimethyl phenethyl carbinol CAS 103-05-9 EINECS/ELINCS 203-074-4 Synonyms Benzyl-t-butanol 2-Butanol, 2-methyl-4-phenyl- 0,0-Dimethylbenzenepropanol Dimethyl phenylethyl carbinol 1,1-Dimethyl-3-phenylpropanol... 

Dimethyl-3-phenylpropyl acetate. See,2-Methyl-4-phenyl-2-butyl acetate a,a-Dimethyl-5-phenylpropyl alcohol. See Dimethyl phenethyl carbinol... 

Phenyl-2-methyl-2-propanol. See Dimethyl benzyl carbinol 3-Phenyl-2-methyl-propen-2-ol-1. See Methylcinnamyl alcohol 1 -Phenyl-3-methyl-5-pyrazolone CAS 89-25-8 EINECS/ELINCS 201-891-0 Synonyms Cl developer 1 Developer Z 2.4-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one 3-Methyl-1 -phenyl-2-pyrazolin-5-one 3-Methyl-1 -phenyl-5-pyrazolone Norantipyrine Norphenazone 1-Phenyl-3-methyl-5-oxo-2-pyrazoline 1-Phenyl-3-methylpyrazolone-5 5-Pyrazolin-5-one, 3-methyl-1-phenyl-5-Pyrazolone, 3-methyl-1-phenyl-Empirical C10H10N2O Formula C6HsNN C(CH3)CH2CO Properties Wh. to It. yel. powd. orcryst. sol. 10-50 mg/ml in DMSO, 95% ethanol, acetone si. sol. in benzene sol. < 1 mg/ml in water insol. in ether, petrol, ether m.w. 174.20 vapor pressure < 0.01 mm Hg (20 C) m.p. 127-130 C b.p. 287 C (105 mm) ref. index 1.637 (20 C)... 

Phenyl ketones, solubilized by enantiomeric micelles of (+H )-iV-dodecyl-AW-dimethyl-l-phenylethylammonium bromide, are reduced by sodium boro-hydride to the corresponding optically active carbinol. Stereochemical selectivity is shown by the enriched enantiomer of each laevorotatory non-racemic carbinol possessing the same absolute configuration. This suggests that binding of each prochiral ketone to the micelle is not only stereochemically ordered but ordered in the same absolute stereochemical sense. ... 

Athyl-allyl-p-tolyl-eaTbinol 6 1 295. Allyl-p-cnmyl-caroinol 6 1 295. Me yl-allyf [3.4.dimethyl.phenyl].carbinol 6 1 296. 

Acetfl nmo 0 hydroohjnoii>1.4-dimethyl atheT 2-aoetat 18 1337. Aminometlwl>[S.4 diacetosy>phenyl]-carbinol 18 II 522. 

CgHjgO Dimethyl-phenyl-carbinol CigHggO Dodecanol-(l) 490... 

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