Fluonnated compounds

The relative polanties of vanous solvents according to a new empincal solvatochromabc polarity scale [d9] are hsted in Table 8 Fluonnated compounds represent both extremes in polanty... 

Properties of Fluonnated Compounds Table 10. Octanol-Water Partition Coefficients... 

The high thermal and chemical stability of fluorocarbons, combined with their very weak intermolecular interactions, makes them ideal stationary phases for the separation of a wide variety of organic compounds, including both hydrocarbons and fluorine-containing molecules Fluonnated stationary phases include per-fluoroalkanes, fluorocarbon surfactants, poly(chlorotrifluoroethylene), polyfper-fluoroalkyl) ethers, and other functionalized perfluoro compounds The applications of fluonnated compounds as stationary phases in gas-liquid chroma... 

In the past 10 years, with increased availabihty and utility of NMR instrumentation, the volume of NMR information on fluonnated compounds has greatly expanded, especially because of the following developments... 

One-carbon fluonnated compounds are used as synthetic reagents and in many theoretical inquines of structure and spectroscopy Twenty fluorohalomethanes are listed in Table 1 [56, 57, 58 59, 60, 61, 62] Fluorocarbons llBl, 22B1, and 31B1 and 12 of 15 lodofluoromethanes are not listed because of a lack of NMR data Most of the if-F values are taken from the older literature [57, 59], obtained from... 

Fluonnated compounds, organic, fluonnated acetic acids... 

With highly fluonnated compounds, even relatively weak bases cause elimination of hydrogen fluoride Such reagents are especially desirable in dehydro-fluonnations of polyfluoro compounds containing functionalities that would suffer from stronger bases [27] (equation 19)... 

The elimination of water from a fluonnated compound generally follows a reaction path similar to that of its nonfluorinated counterpart, although the presence of the highly electronegative fluorine atoms may have unexpected effects Various monofluoro alcohols can be dehydrated via their tosyl esters at 75 °C by using potassium tert-butoxide [SO] (equation 50)... 

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