1 -Phenyl-1 - cyclohexane

Make molecular models of the two chair conformations of cis 1 tert butyl 4 phenyl cyclohexane What is the strain energy calculated for each conformation by molecular mechanics Which has a greater preference for the equatorial onentation phenyl or tert butyD... 

ALLYL ALCOHOL AND MONOALLYLDERIVATIVES] (Vol 2) l,l-Bis[(di-4-tolylamino) phenyl]cyclohexane [58473-78-2]... 

Propose a synthesis of the anti-inflammatory drug Fenclorac from phenyl-cyclohexane. 

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. 

Make sure that symmetry is taken into account when producing the atom mapping between the two conformations. Consider the example given in Fig. 7.17. The molecule - phenyl-cyclohexane - has two independent symmetry axes through the two rings as indicated by dotted lines. This... 

Fig. 7.17 RMS fits of two similar phenyl-cyclohexane conformations. The structural diagram indicates the two independent symmetry axes (dotted lines). The left-hand...

Treatment of either the cis or trans isomer of 4-/m-bu(yl-1 -phenylcyclohexanol with trifluoroacetic acid and one of a variety of organosilicon hydrides in dichloromethane yields a mixture of cis- and trans-4-tert-butyl-l-phenyl-cyclohexane and the elimination product, 4-/er/-butyl -1 -phenylcyclohexene... 

The linear co-oxidation dependence was observed for the following pairs of hydrocarbons (333 K, initiator AIBN) tetralin-ethylbenzene, phenylcyclopentane-ethylbenzene, phenyl-cyclohexane-ethylbenzene, tetralin-phenylcyclohexane, cyclohexene-2-butene, 2,3-dimethyl, and cyclohexene-pinane [8]. 

J Kalinowski, G Giro, M Cocchi, V Fattori, and P DiMarco, Unusual disparity in electroluminescence and photoluminescence spectra of vacuum-evaporated films of 1,1 -bis ((di-4-tolylamino) phenyl) cyclohexane, Appl. Phys. Lett., 76 2352-2354, 2000. 

Pericas and coworkers173 studied the endo selective reactions of 1-alkoxy-l,3-butadienes and 1-alkoxy-l,3-octadienes with maleic anhydride. They found that the trans-2-phenyl-cyclohexan-l-ol and 3-exo-(neopentyloxy)isobornan-l-ol based chiral dienes induced the highest facial selectivities. The relative transition state energies for the formation of the different diastereomers were calculated using semi-empirical methods (AMI). 

Pines and Kolobielski (18) have shown that phenylcyclohexene, although it is not a cyclic diolefin, will also undergo reactions similar to those that cyclic diolefins undergo when treated with base catalysts. When heated to 200-220 with a sodium-benzyl-sodium catalyst, it underwent a hydrogen transfer reaction resulting in the formation of biphenyl and of phenyl-cyclohexane molecular hydrogen was not produced. The mechanism of this reaction may be pictured as an elimination of sodium hydride from one molecule with the hydride ion being accepted by another molecule (A"-E"). 

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... 

H). Hj/Rancy-Ni/C2HsOH 1050 kPa, 0-5" - 20-25°, KOmin cis-2-Amino-1 -phenyl-cyclohexan 76 (als Thioham-stoff-Derivat) 6... 

UDMH is known to be miscible with the following wafer, benzene, triethyl benzene, toluene, kerosene, ethyl alcohol, isobutyl alcohol, n-butyl ether, n-amyl ether, n-hexyl ether, diethyl ether, petroleum ether, petroleum naphtha, n-heptane, n-hexane, n-octane, n-decane, n-dodecane, n-hexadecane, cyclohexane, 1,2-dimethyl cyclohexane, phenyl cyclohexane, n-tetradecane, trichloroethylene, dichloroethylene, perchloroethylene, 1,1,1-trichloroethane, triethyl amine, ethylenediamine, diethylene triamine, acetonitrile, aniline, cumene, tetra-hydronaphthalene, tetraethylene pentamine, ethylene glycol and hydrazine (Ref 4)... 

Phenyl cyclohexane 99 FALSE FALSE FALSE FALSE... 

Eidenschink describes a further class of LCs (phenyl cyclohexanes) for commercial applications... 

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... 

Table 3.15 Transition temperatures (°C) for some tT ns-l-alkenyl-4-(4-cyano-phenyl)cyclohexanes (74 and 129-139)...

A. 1,1-Bis [4-(4-methylstyryl)phenyl-4-tolylamino-phenyl]cyclohexane (BTAS)... 

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... 

One hundred and sixty grams (1.0 mole) of bromine is added drop-wise to a mixture of 16 g. of iodine and 160 g. (1.0 mole) of phenyl-cyclohexane. Hood.) The mixture is allowed to stand for an hour after completion of the addition and is then washed several times with 10% sodium carbonate solution followed by water. The mixture is steam-distilled with superheated steam, and the product is extracted from the distillate with ether. After drying over anhydrous sodium sulfate, the ethereal solution is distilled to give 190 g. (79%) of product boiling at 157-160°/15 mm. 

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