Ethyl fluoride

Ethyl Fluoride.46 Ethylene from a storage tank is forced intermittently into an Allegheny metal autoclave which contains 200 g. of hydrogen fluoride. The autoclave is equipped with a stirrer which is operated during the addition, and the temperature is kept at 90° throughout the addition. After 85 g. ref ethylene has been introduced, stirring 

Isopropyl Fluoride. The procedure is the same as for ethyl fluoride except that the temperature is k t at 0°, and the ratio of hydrogen fluoride to propylene is held to 1.08. The yield is 61% isopropyl fluoride boils at —10.1°. 

Cyclohexyl Fluoride. In a copper container fitted with inlet, outlet and stirrer is placed 200 g. of anhydrous hydrogen fluoride. After cooling to —35°, 400 g. of precooled cyclohexene is added dropwise over a period of seventy-five minutes. The reaction mixture is poured into a copper beaker filled with cracked ice, stirred, decanted, dried, and distill under 300 mm. pressure (b.p. 71-71.4°). The yield is 60% at 10° it is only 54%. 

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Fluoroethane Ethyl fluoride 195 CjHsF Thiophene 171 C4H4S... 

Neither methyl nor ethyl fluoride gave the corresponding cations when treated with SbFs. At low temperatures, methyl fluoride gave chiefly the methylated sulfur dioxide salt, (CH3OSO) ShF while ethyl fluoride rapidly formed the rert-butyl and ferf-hexyl cations by addition of the initially formed ethyl cation to ethylene molecules also formed ° At room temperature, methyl fluoride also gave the tert-butyl cation. In accord with the stability order, hydride ion is abstracted from alkanes by super acid most readily from tertiary and least readily from primary positions. 

ETHYL CHLORIDE ETHYL FLUORIDE ETHYLENE IMIDE NITROETHANE ETHANE... 

The typical chemical shift for primary n-alkyl fluorides is -219, but the values for primary alkyl fluorides vary between -212 for ethyl fluoride and -226 for 2-ethyl-l-fluorobutane (Scheme 3.1). As mentioned above, alkyl branching leads to shielding of fluorine nuclei. 

Kraitschman, J., and B. P. Dailey The microwave spectrum of ethyl fluoride. 

Figure 3.4 Ethyl fluoride (fluoroethane) structure, dipole moment, and charge...

During the periods in which a solvated ion is paired, it can decompose slowly to boron trifluoride, ethyl fluoride and diethyl ether ... 

This accounts for the steady formation of ethyl fluoride from triethyl oxonium salts, which is strongly accelerated by DXL [21]. 

This situation continued much too long. In 1900, Moissan published a fifteen-page memoir on ethyl fluoride in which no real formula even appears. In 1890, Berthelot was still writing water as HO but finally published a note in 1891 using the atomic notation [H20], However, he continued to write benzene as C2H2 (C2H2) (C2H2) as late as 1898 and there is not the least use of structural formulas in his discussions of isomerism in a 1901 text on hydrocarbons. 18... 

Table 10 The HF/6-31 + G secondary a-deuterium KIEs and vibrational contributions to the KIEs for the SN2 reactions between ethyl fluorides and chlorides with different nucleophiles at 25°C. ...

Identical relationships were found to hold for the SN2 reactions of ethyl fluorides and ethyl chlorides with various nucleophiles (Table 10 Figs 7-9). 

Alkyl fluoride boron trifluoride systems were first investigated by Olah et al. (1957). 1 1 Addition complexes were observed at low temperatures, and their specific conductivity was measured. The specific conductivity of the propyl and butyl fluoride boron trifluoride systems was found three orders of magnitude larger than those of the methyl- and ethyl-fluoride systems. The latter systems on heating dissociated into their starting materials, whereas the former gave polymer mixtures (Olah, unpublished). 

In more recent work (1965) Nakane et al. extended their investigation also to boron trifluoride ethyl fluoride and boron trifluoride isopropyl... 

Ethyl fluoride shows more tendency to ionize in antimony pentafluoride, than does methyl fluoride. The solutions in neat antimony pentafluoride are, however, not stable and a rapid formation of t-butyl and t-hexyl cations is observed. This observation indicates self alkylation of ethylene formed in equilibrium of equation (2). 

CHLOROETHANOL ETHYL FLUORIDE ETHYL IODIDE ETHYLENEIMINE ACETAMIDE N-METHYLFORMAMIDE NITROETHANE ETHYL-NITRATE ETHANE... 

I) Ethanol to but-l-yne (II) Ethane to bromoethene (Hi) Propene to 1-nItropropane (Iv) Toluene to benzyl alcohol (v) Propene to propyne (vl) Ethanol to ethyl fluoride (vll) Bromomethane to propanone (viii) But-l-ene to but-2-ene (Ix) 1-Chlorobutane to n-octane (x) Benzene to biphenyl. 

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