Ethyl cyclohexane

In this section primarily reductions of aldehydes, ketones, and esters with sodium, lithium, and potassium in the presence of TCS 14 are discussed closely related reductions with metals such as Zn, Mg, Mn, Sm, Ti, etc., in the presence of TCS 14 are described in Section 13.2. Treatment of ethyl isobutyrate with sodium in the presence of TCS 14 in toluene affords the O-silylated Riihlmann-acyloin-condensation product 1915, which can be readily desilylated to the free acyloin 1916 [119]. Further reactions of methyl or ethyl 1,2- or 1,4-dicarboxylates are discussed elsewhere [120-122]. The same reaction with trimethylsilyl isobutyrate affords the C,0-silylated alcohol 1917, in 72% yield, which is desilylated to 1918 [123] (Scheme 12.34). Likewise, reduction of the diesters 1919 affords the cyclized O-silylated acyloin products 1920 in high yields, which give on saponification the acyloins 1921 [119]. Whereas electroreduction on a Mg-electrode in the presence of MesSiCl 14 converts esters such as ethyl cyclohexane-carboxylate via 1922 and subsequent saponification into acyloins such as 1923 [124], electroreduction of esters such as ethyl cyclohexylcarboxylate using a Mg-electrode without Me3SiCl 14 yields 1,2-ketones such as 1924 [125] (Scheme 12.34). 

Figure 12.8 Pyrogram of Regalrez 1094. Peak assignments 1, cyclohexane 2, cyclohexene 3, ethenyl cyclohexane 4, ethyl cyclohexane 5, ethylidene cyclohexane 6, 1 methylethyl cyclohexane 7, 1 methylethyl cyclohexene 8, 1 methylethylidene cyclohexane 9, 1,1 dimethylethyl cyclohexane 10, 1,2 propadienyl cyclohexane...

Trimethyl- 1-butene r/.v.r/.v-1.3.5-Trim ethyl cyclohexane Trimethylene oxide... 

The API Subcommittee for Technical Data is sponsoring phase equilibria work by Grant Wilson (Wilco Co.) on water non-hydrocarbon/ hydrocarbon systems. The first system will be n-octane, ethylbenzene, and ethyl cyclohexane as binaries with water and as ternaries with hydrogen sulfide as the third component. 

Ethyl cyclohexane 18 0.95 6.60 FALSE FALSE FALSE FALSE... 

Robert A. Friedel. It would be interesting to carry out the work suggested by Dr. Wender. Type analyses of C naphthenes from a coal hydrogenation product have been reported (2) the types analyzed include ethyl-cyclohexane, propylcyclopentanes, dimethylcyclohexanes, gem-trimethyIcyclo-pentanes, other trimethylcyclopentanes, and methyl-ethylcyclopentanes. Some compounds in these classes could be optically active. Comparable analyses of catalytically reformed petroleum would be of considerable interest in trying to ascertain what optically active components are produced in the reforming. 

Branched paraffins react somewhat differently to the normal paraffins during cracking processes and produce substantially higher yields of olefins having one fewer carbon atom that the parent hydrocarbon. Cycloparaffins (naphthenes) react differently to their noncyclic counterparts and are somewhat more stable. For example, cyclohexane produces hydrogen, ethylene, butadiene, and benzene Alkyl-substituted cycloparaffins decompose by means of scission of the alkyl chain to produce an olefin and a methyl or ethyl cyclohexane. 

Hydrocarbons Ethyl cyclohexane, heptane, octane, toluene, o-, m- p-xylene... 

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. 

FIGURE 8.22 Vapor pressures of ethylbenzene and ethyl cyclohexane (Example 8.7). Note 1 mmHg 0.1. kPa. 

The rfl j-l- -alkyl-4-(4-cyanophenyl)cyclohexanes exhibited an unparalleled advantageous combination of physical properties for TN-LCDs at this time. Therefore, a central linkage was incorporated between the cyclohexane and the phenyl ring of PCH-5 (41) to form the structurally related compounds (6(1-69) collated in Table 3.6 in attempts to improve on these properties. However, only the /ra j -l- -alkyl-4-[2-(4-cyanophenyl)ethyl]cyclohexanes (PECHs), e.g. PECH-5 (62), were almost equivalent from the point of view of... 

For hydrocarbon pairs in different solvents and over moderate temperature ranges (to 100°C), a linear dependency of log S°12 on (1/T) can be assumed (12, 14, 26). An example is shown in Figure 5, where log S° for the hexane-benzene pair in five different solvents is plotted against the reciprocal absolute temperature. The relationship can be considered linear for engineering applications. Selectivity decreases with increasing temperature, and this explains the unusual maximum in the variation of selectivity with solvent concentration shown by the system ethylbenzene-ethyl cyclohexane with hexyleneglycol as solvent (Figure 3). 

Scheme 17.3 Intermediates for the isomerizations of cycloheptane into methylcyclohexane and of cyclooctane into ethyl cyclohexane.

C9H17N02 2- diethylamino)ethyl acrylate 2426-54-2 381.97 32.670 2 17920 C9H18 1-methyl-trans-2-ethyl cyclohexane 4923-78-8 424.85 36.041 1,2... 

C8H16 ethyl cyclohexane 1678-91-7 1.022E-f-10 80.690 16514 C9H10 o-methylstyrene 611-15-4 9.660E+09 77.400... 

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