F Cyclohexane

Cyclohexadiene-l,4-dione, see 1,4-Benzoquinone, 2207 2,5-Cyclohexadienone-4-imine, see 1,4-Benzoquinone monoimine, 2253 f Cyclohexane, 2451... 

As found recently, a stoichiometric equivalent of BrF - a BrF3/Br2 mixture -behaves as a powerful fluorinating agent for polyfluorinated aromatic compounds C6F5X (X=F, CF3, H, OCH3) [84]. Its reaction with F-benzene proceeds at a temperature as low as 0°C to give a mixture of F-cyclohexadiene-1,4 and 4-Br-F-cyclohexane ... 

The A -acetylglucosamine unit seems to act as a spacer, positioning the other sugar units. Glucose, diols and amino alcohols, e.g. (/f,/f)-cyclohexan-diol (see Scheme 3, compounds 1-3) or (R,R)-2-amino cyclohexanol, as well as amino acid-building blocks such as L-threonine (5,6), proved to be an effective replacement for A-acetylglucosamine [10-13]. 

Winterization is the provision of design features, procedures, or systems for air-cooled heat exchangers to avoid process-fluid operating problems resulting from low-temperature inlet air. These include fluid freezing, pour point, wax formation, hydrate formation, laminar flow, and condensation at the dew point (which may initiate corrosion). Freezing points for some commonly encountered fluids in refinery service include benzene, 5.6°C (42°F) p-xylene 15.5°C (55.9°F) cyclohexane, 6.6°C (43.8°F) phenol, 40.9°C (105.6°F) monoethanolamine, 10.3°C (50.5°F) and diethanolamine, 25.1°C (77.2°F). Water solutions... 

Synthesis of l-[(4-tert-butylaminocarbonyl)-2-methoxyphenylsulfonyl]-4 -(2-morpholinoethoxy)-5-ethoxyspiro(quinoline-3,F-cyclohexane)-2-one, the vasopressin receptor 2 antagonist SR-121463 01PAC1401. 

This paper describes a study of the gas-phase x-radiolysis of pure perfluorocyclobutane, including the effects of added N20 and 02 on the reaction. Mixtures of methane and F-cyclobutane were also examined over a broad composition range. The latter experiments were intended to shed light on the radiolysis mechanism of pure perfluorocyclobutane as well as to provide information on the radiolytic behavior of gas-phase fluorocarbon-hydrocarbon mixtures. Related studies on liquid phase mixtures of cyclohexane and F-cyclohexane are currently in progress in this laboratory. 

Other products which might be expected were probably masked by the F-cyclobutane peak. In particular, c-C4F7H may be masked in this way since it would be anticipated as a product from work on mixtures of cyclohexane and F-cyclohexane (6). One product peak was in fact observed on the tail of F-cyclobutane, but it was never separated sufficiently to analyze. Since this product appeared to maximize at high methane content, it may be c-C4F7CH3 which also would be expected, at least in small yields (6). 

F]), cyclohexane (245 C [473°F]), re-pentane (260°C [500°F]), ethanol (365°C [689°F]), methanol (385 C [725 F]), and isopropanol (399°C [750 F]). Table IX.l provides flash point and autoignition temperature data for some common flammable compounds. The flammability data for these compounds, as well as those of other flammable and combustible substances, are presented throughout this book. 

Indicate whether each statement is true or false, (a) Alkanes do not contain any carbon-carbon multiple bonds, (b) Cyclobutane contains a four-membered ring, (c) Alkenes contain carbon-carbon triple bonds, (d) Alkynes contain carbon-carbon double bonds, (e) Pentane is a saturated hydrocarbon but 1-pentene is an unsaturated hydrocarbon, (f) Cyclohexane is an aromatic hydrocarbon, (g) The methyl group contains one less hydrogen atom than methane. 

Fernandez, J. Velasco, L Otin, S. Excess molar enthalpies of some n-alkylamine -f cyclohexane or + benzene binary mixtures Thermochim. Acta 1989,150,87-91... 

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