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  • Articles: DFG German National Licenses  (2)
  • Azole-borane adducts  (1)
  • diffuse-reflectance infrared spectroscopy  (1)
  • 1
    Electronic Resource
    Electronic Resource
    New Imidazabole Derivatives: Dimers of Carbene-Borane Adducts (1998)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1998 (1998), S. 1547-1553 
    Details
    ISSN: 1434-1948
    Keywords: Imidazaboles ; Carbene-borane adducts ; Azole-borane adducts ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The preparation and characterization of five new imidazabole derivatives is reported: 1,5-dibenzyl-4,4,8,8-tetrahydroimidazabole (2), 4,4,8,8-tetrafluoro-1,5-dimethylimidazabole (3), 4,4-difluoro-8,8-dihydro-1,5-dimethylimidazabole (4), 4,4,8,8-tetrachloro-1,5-dimethylimidazabole (5), and 4,4,8,8-tetraethyl-1,5-dimethylimidazabole (6). The structures of compounds 2-6 as dimeric carbene-borane adducts rather than dimeric N-borane adducts are discussed on the basis of NMR (2-6) and X-ray diffraction data (2, 3, 5 and 6).
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Diffuse-reflectance Fourier transform-infrared spectroscopic microanalysis of the flavonolignans (1991)
    Springer
    Microchimica acta 103 (1991), S. 105-114 
    Details
    ISSN: 1436-5073
    Keywords: diffuse-reflectance infrared spectroscopy ; microanalysis ; flavonolignans ; flavonoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Diffuse-reflectance Fourier transform-infrared spectroscopic (DRIFT) microanalysis (10 μg samples) of a selected series of flavonoids was studied, comparing to transmission FT-IR spectroscopic analysis of the same samples at the mg level. DRIFT was shown to be a useful, sample-saving and reliable IR technique for the structural analysis and compound identification of the mainSilybum genus 3-OH-flavonolignans (silybin, isosilybin, silydianin, silychristin and isosilychristin) and the dihydroflavonol taxifolin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01309016
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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