1- Methyl-1-phenyl cyclohexane

Figure 4. Dielectric loss data of I, l -di(4-methoxy-5-methyl phenyl (cyclohexane (BMMPC) at various combinations of temperature and pressure as indicated to demonstrate the invariance of the dispersion of the a-relaxation at constant a-loss peak frequency or equivalently at constant a-relaxation time The dashed line is the imaginary part of the one-sided Fourier transform of the KWW function with Pkww — (I n) — 0.55. The logarithmic ordinate scale makes evident the presence of an excess wing at higher frequencies.

Methyl-l.l-bis.[4 amino-3-methyl-phenyl]-cyclohexan 13 II129. 

Analog erhalt man die Gemische2 von trans- und cis-4-Hydroxy-l-methyl- (91% bzw. 9%) sowie trans- und cis-4-Hydroxy-l-phenyl-cyclohexan (97,7 bis 98,1% bzw. 

The nitroethane cyclization of p-phenylglutaraldehyde (19) takes an analogous steric course. Only the major product, lf-methyl-l-nitro-4c-phenyl-cyclohexane-2c,6c-diol (20) was isolated in 50% yield >. The... 

Six more polyaryl ethers were made from 2,6-dichlorobenzonitrile (2) and one of the following monomers l,l -bis(4-hydroxy-3,5-dimethyl phenyl) cyclohexane 2,2 -bis (4-hydroxyphenyl) -2-phenyl ethane 1,3-bis(4-hydroxyphenyl)-1-ethyl cyclohexane 2- ( hydroxyphenyl)-2-[3-(4-hydroxyphenyl) -4-methyl cyclohexyl ] propane 2,2 -bis (4-hydroxy-3,5-dimethyl phenyl) propane and bisphenol A. 

The three columns in the table are three different ways of expressing the same information. However, just looking at the percentages column, it is not immediately obvious to see how much more of the equatorial conformer there is—after all, the percentages of equatorial conformer for methyl, ethyl, isopropyl, f-butyl, and phenyl-cyclohexanes are all 95% or more. Looking at the equilibrium constants gives a much clearer picture... 

Tetracosane Phenyl cyclohexane Benzophenone Methyl stearate Lindane (152.2) C24H50 (338.7) C12H16 (160.3) C13H10O (182.2) C19H38O2 (298.5) CgHgClg (290.8) Hydrocarbon Aromatic hydrocarbon Aromatic ketone Aliphatic ester Halogenated hydrocarbon Non-volatile, non-polar, solid Non-volatile, non-polar, liquid Non-volatile, polar, solid Non-volatile, polar, solid Non-volatile, medium-polar, solid Surrogate for limonene Hazardous compound, should be substituted... 

Butensanre 3-(4-Methoxy-ani-lino)- -ethylester VIII, 627 Chroman 4-(Ethoxycarbonyl-amino)-2-methyl- V/lc, 1106 Cyciobutan 2-(2,5-Dimethoxy-4-methyl-phenyl)-l -hydroximino-E17e, 421 (Oxo - Oxim) Cyclohexan tronj-2-Methoxy-l-(2-nitro-phenylthio)- E21e, 5033 (En -> OR/SAr)... 

Bicyclo 4.2.0 octan 8-Cyan-1-pyrrolidino- IV/4, 285 Cyclobutan l,l-Dimethyl-2-di-methylamino-3-(4-pyridyl)- E17e, 143 ([2 + 2]-Cycloadd.) Cyclohexan 2-Hydrazino-l-(4-methyl-phenyl)- -Hydrochlorid E16a, 450/452 (Hydrazon-Red.)... 

Mit 4-Chlor-toluol wird 3-(5-Chlor-2-methyl-phenyl)-lH-indazoPm [18,5% Schmp. 141-142 (Benzol-Cyclohexan)] erhulten analog wird 3-(4-Chlor-phenyl)-lH-indazol30 [24% Schmp. 204-205° (Cyclo-hexan)] isoliert. 

Ahnlich gibt m-2-Methyl-l-phenyl-bicyclo[4.1.0]heptan (R = CH3) iiber alien ge-nannten Katalysatoren als einziges Hydrogenolyse-Produkt 2,6-Dimethyl-cis-l -phenyl-cyclohexan. 

Maurya, M., Chandrakar, A. andChand, S. (2007). Zeolite-Y Encapsulated Metal Complexes of Oxovanadium(VI), Copper(ll) and Nickel(II) as Catalyst for the Oxidation of Styrene, Cyclohexane and Methyl Phenyl Sulfide, J. Mol Catal A Chem., 274, pp. 192-201. 

Preparation by Fries rearrangement of 2-tert-butyl-4-methyl-phenyl acetate in the presence of aluminium chloride in cyclohexane at <105° (47%) [3481],... 

Hydroperoxide Process. The hydroperoxide process to propylene oxide involves the basic steps of oxidation of an organic to its hydroperoxide, epoxidation of propylene with the hydroperoxide, purification of the propylene oxide, and conversion of the coproduct alcohol to a useful product for sale. Incorporated into the process are various purification, concentration, and recycle methods to maximize product yields and minimize operating expenses. Commercially, two processes are used. The coproducts are / fZ-butanol, which is converted to methyl tert-huty ether [1634-04-4] (MTBE), and 1-phenyl ethanol, converted to styrene [100-42-5]. The coproducts are produced in a weight ratio of 3—4 1 / fZ-butanol/propylene oxide and 2.4 1 styrene/propylene oxide, respectively. These processes use isobutane (see Hydrocarbons) and ethylbenzene (qv), respectively, to produce the hydroperoxide. Other processes have been proposed based on cyclohexane where aniline is the final coproduct, or on cumene (qv) where a-methyl styrene is the final coproduct. 

The photochemical behavior of the isomeric 3-methyl-2-phenyl-2-allyl-l-azirine (66) system was also studied. Irradiation of (66) in cyclohexane gave a quantitative yield of azabicyclohexenes (67) and (68). Control experiments showed that (65) and (66) were not interconverted by a Cope reaction under the photolytic conditions. Photocycloaddition of (66) with an added dipolarophile afforded a different 1,3-dipolar cycloadduct from that obtained from (65). The thermodynamically less favored endo isomer (68b) was also formed as the exclusive product from the irradiation of azirine (66b). 

Heating or irradiating alkenes in the presence of sulfur gives relatively low yields of thiiranes. For example, a mixture of sulfur and norbornadiene in pyridine-DMF-NHa at 110 °C gave a 19% yield of the monoepisulfide of norbornadiene as compared with a 78% yield by the method of Scheme 120 (79JCS(Pi)228). Often 1,2,3-trithiolanes are formed instead of thiiranes. The sesquiterpene episulfides in the essential oil of hops were prepared conveniently by irradiation of the terpene and sulfur in cyclohexane (Scheme 135) (80JCS(Pl)3li). Phenyl, methyl or allyl isothiocyanate may be used as a source of sulfur atoms instead of elemental sulfur. 

The size of the ligand is crucial in deciding the degree of association, as shown by the very similar structural features of methyl- and "butyllithium derivatives. With hexameric structures in cyclohexane, the addition of diethyl ether affords tetramers in both cases. Further demonstrating the importance of the donor, the two-dimensional phenyl ligand also adopts a tetrameric structure in diethyl ether [Li(OEt2)Ph]4, which upon addition of the bidentate... 

If one methyl group is replaced by phenyl, the a-ICSs seem to tend to stronger shieldings in the cyclohexane conformer 143 a value of ca. — 7 can be estimated... 

Column III shows the effect of ultrasound upon the product ratio with methanol as solvent. As can be seen there is now 53 % bibenzyl, 32 % of methyl ether and 6% of methyl ester (with a total of 5 % of other products) suggesting a slight shift towards the two-electron products, but with an overall diminuition of solvent discharge (approx. 6% ester) and side-reactions (approx. 6%). This result confirms the fact the phenyl acetate electrooxidation favours the one-electron route (to bibenzyl) in a wide range of conditions [61], and is much less sensitive to mechanistic switches by manipulation of parameters (e. g. ultrasound) than is cyclohexane carboxylate electrooxidation [54]. 

The proposed mechanism of the indan-forming reaction was supported by an experiment in which 3-methyl-3-phenyl-l-chlorobutane was treated with potassium in cyclohexane at 80 , as reported by Pines and Schaap (4 ). 1,1-Dimethylindan was produced under these conditions of low temperature and pressure, however, side reactions produced some tert-pen-tylbenzene and 3-methyl-3-phenyl-l-butene. The major products, however, were 2,5-dimethyl-2,5-diphenylhexane and ethylene. [See Reactions (18-20).] The formation of 2,5-dimethyl-2,5-diphenylhexane results from... 

The stereoselectivity of the reaction can be rationalized in terms of the relative stabilities of the products 133 and 134. The stereoselectivity was more pronounced in the cyclohexane series. The stereoselectivity increases with increasing size of substituent R, and the reaction becomes a stereospecific process for the rert-butyl derivatives. The equatorial position of a bulkier substituent is preferred, and thus in the phenyl series the steric requirement of the phenyl group is smaller than that of the methyl group. 

The crude product (10 g) is diluted with 4 mL of a solvent mixture (ethyl acetate/cyclohexane = 9 1). This solution is poured onto a column (75-mm diameter) filled with 120 g of silica gel (Merck 230-400 mesh) for flash chromatography. Elution is performed under gravity and requires 200 mL of the above solvent system, followed by 200 mL of ethyl acetate. 2-Phenyl-2-propanol mixed with methyl p-tolyl sulfide is eluted in the first fraction ( 150 mL, monitored by TLC). The subsequent fractions are collected ( 300 mL)... 

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