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  • 1
    Electronic Resource
    Electronic Resource
    ESR study of the free radicals formed in the photolysis of α-ketofluorosulfates (1992)
    Springer
    Russian chemical bulletin 41 (1992), S. 594-596 
    Details
    ISSN: 1573-9171
    Keywords: ESR ; photolysis ; radical ; ketofluorosulfate ; delocalization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract ESR spectroscopy was used to establish that the UV irradiation of α-ketofluorosulfates containing an OSO 2 F group at a tertiary carbon atom gives radicals formed upon cleavage of the C-OSO 2 F bond. If the OSO 2 F group is attached to a primary or secondary carbon atom, we observe ordinary photodecomposition with cleavage of the acyl—carbon bond. The ESR spectra of the new radicals were studied. Replacement of fluorine by the OSO 2 F group in the trifluoromethyl radical leads to compression of the radical site. Branched α-oxoperfluoroalkyl radicals are not heteroallylic and the unpaired electron is localized largely on the carbon atom. The [(CF 3 ) 2 CF] 2 ĊC(O)CF 3 radical is stable in the air.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00863096
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Synthesis of the perfluoroacetyldiisopropylmethyl radical (1993)
    Springer
    Russian chemical bulletin 42 (1993), S. 207-208 
    Details
    ISSN: 1573-9171
    Keywords: radical ; perfluoroketone ; synthesis ; ESR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A stable trifluoroacetylperfluorodiisopropylmethyl radical has been prepared by interaction of the (α-fluorosulfonyloxytetrafluoroethyl)perfluorodiisopropylmethyl radical with anhydrous CsF. This reaction is the first example of a chemical transformation of a C-centered radical which is not resonance-stabilized with retention of the radical center.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00700014
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Conjugated Additions in Hydrogen Fluoride (1969)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 8 (1969), S. 349-356 
    Details
    ISSN: 0570-0833
    Keywords: Hydrogen fluoride ; Solvents ; Fluorination ; Fluorine ; Addition ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Fluorine and another substituent can be added in a single step to compounds having CC double bonds in anhydrous hydrogen fluoride. It is possible in this way to obtain e.g. α-fluorinated β-halogeno, β-alkyl, β-nitro, and β-amino compounds, and also (in some cases by secondary reactions) fluorinated ethers, alcohols, esters, and carboxylic acids, β-fluoro alcohols can be obtained by conjugated “hypofluorination” in the presence of oxenium ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196903491
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    Paper (German National Licenses)
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