Phenyl methane

Treatment of fluorene, xanthene, thioxanthene, phenyl-4-pyridyl-methane, phenyl-2-pyridylmethane, 4,5-methylenephenanthrene, tetra-phenylcyclopentadiene, or phenalene with base and a trace of oxygen in DMSO (80% )-tert-buty alcohol (20%) solution gave significant amounts of the ketyls—i.e., Figure 6. These reactions may involve the initial formation of the ketone followed by reduction by the carbanion to yield the ketyl. 

Diaryl- -(tu-hydroxy-ethylester) E2, 210 1-Diazo-alkan- -ester E2, 398 (l-Diazo-ethan)-phenyl- -methylester E2, 399 (Diazo-phenvl-methan)-phenyl- -methylester E2,... 

METHANE DICHLORIDE see MJP450 METHANEDITHIOL-S,S-DIESTER with 0,0-DIETHYL ESTER PHOSPHORODITHIOIC ACID see EEH600 METHANE, PHENYL- see TGK750 METHANEPHOSPHONIC ACID, DIPHENYL ESTER see MDQ825... 

SYNONYMS antisal-lA, benzene, methyl-, methacide, toluol, methane, phenyl-, methyl-benzene, methyl benzol, phenylmethane, tolusol... 

Synonyms cas los-ss-s ANTiSAUia benzene, methyl- methacide methane, phenyl- methylbenzene ... 

Diamino-3 3 -dimethyltriphenyl- methane (Phenyl-[6 -diamino-mxoL ditolyl ... 

The most widely used method of analysis for methyl chloride is gas chromatography. A capillary column medium that does a very good job in separating most chlorinated hydrocarbons is methyl siUcone or methyl (5% phenyl) siUcone. The detector of choice is a flame ionisation detector. Typical molar response factors for the chlorinated methanes are methyl chloride, 2.05 methylene chloride, 2.2 chloroform, 2.8 carbon tetrachloride, 3.1, where methane is defined as having a molar response factor of 2.00. Most two-carbon chlorinated hydrocarbons have a molar response factor of about 1.0 on the same basis. 

The insoluble material consists of silica, l,l-di-(/)-chloro-phenyl)-ethylene and a small amount of di-(/>-chlorophenyl)-methane (melting at 54-55° when purified), formed by decarboxylation of the acid. 

Phenylalkanes Bis-[2-hydroxy-5-methyl-3-( 1 - (VII) methylcyclohexyl)phenyl]methane Very slight Most powerful phenolic antioxidants. Widely used in polyolefins and some usage in PVC. 

With 4,4-diarylcyclohexenones, the di-Tc-methane rearrangement occcurs. In compounds in which the two aryl groups are substituted differently, it is found that substituents which stabilize radical character favor migration. Thus, the p-cyanophenyl substituent migrates in preference to the phenyl substituent in 4 ... 

Novolacs are usually made under acidic conditions. Oxalic, sulfuric, toluene sulfonic, phenyl sulfonic, methane sulfonic, hydrochloric, and phosphoric acids are the most common catalysts, though nearly any moderately strong acid will probably do. Often selection of the acid has significant effects on the resultant polymer structure or performance. Sometimes acids are selected for their volatility, as it may be necessary to distill the acid off in some processes. 

Abbreviations acac, acetylacetonate Aik, alkyl AN, acetonitrile bpy, 2,2 -bipyridine Bu, butyl cod, 1,5- or 1,4-cyclooctadiene coe, cyclooctene cot, cyclooctatetraene Cp, cyclopentadienyl Cp, pentamethylcyclopenladienyl Cy, cyclohexyl dme, 1,2-dimethoxyethane dpe, bis(diphenyl-phosphino)ethane dppen, cis-l,2-bis(di[Atenylphosphino)ethylene dppm, bis(diphenylphosphino) methane dppp, l,3-bis(diphenylphosphino)propane eda,ethylenediamine Et,ethyl Hal,halide Hpz, pyrazole HPz, variously substituted pyrazoles Hpz, 3,5-dimethylpyrazole Me, methyl Mes, mesityl nbd, notboma-2,5-diene OBor, (lS)-endo-(-)-bomoxy Ph, phenyl phen, LlO-phenanthroline Pr, f opyl py, pyridine pz, pyrazolate Pz, variously substituted pyrazolates pz, 3,5-dimethylpyrazolate solv, solvent tfb, tetrafluorobenzo(5,6]bicyclo(2.2.2]octa-2,5,7-triene (tetrafluorobenzobanelene) THE, tetrahydrofuran tht, tetrahydrothicphene Tol, tolyl. 

The competitive method employed for determining relative rates of substitution in homolytic phenylation cannot be applied for methylation because of the high reactivity of the primary reaction products toward free methyl radicals. Szwarc and his co-workers, however, developed a technique for measuring the relative rates of addition of methyl radicals to aromatic and heteroaromatic systems. - In the decomposition of acetyl peroxide in isooctane the most important reaction is the formation of methane by the abstraction of hydrogen atoms from the solvent by methyl radicals. When an aromatic compound is added to this system it competes with the solvent for methyl radicals, Eqs, (28) and (29). Reaction (28) results in a decrease in the amount... 

B.7 g (56% of theory) of (blphenyl-4-yl)-imidazol-1-yl-phenylmethane [alternatively named es dIphenyI-ImidazolyI-(1)-phenyl-methane or as 1-(a-biphenyI-4-ylbenzyI) imidazole] of melting point 142°C are obtained. 

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