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  • 1965-1969  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Chemical investigation of the seeds ofAlbizzia procera benth (1967)
    Springer
    Cellular and molecular life sciences 23 (1967), S. 182-183 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Aus dem Samen vonAlbizzia procera Benth wurden ausser Machaerinsäure 4 triterpenoide Sapogenine isoliert (Verbindung A und B, Proceragenin A und B). Es wurde bewiesen, dass die Verbindung A das 28 → 21-Lacton der Machaerinsäure mit einer Konformationsänderung am Ring D oder E ist, während die Verbindung B als Äthylmachaerinat identifiziert wurde. Bei Proceragenin A und B handelt es sich um Dihydroylactone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02136273
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Electron spin resonance study of the radiation-induced polymerization of N-vinylcarbazole (1968)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 6 (1968), S. 1307-1313 
    Details
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: When crystals of N-vinylcarbazole are γ-irradiated at 77°K., the ESR spectrum observed before warming consists of three peaks attributed to a radical-cation with the unpaired spin associated mainly with the nitrogen atom. Above 90°K. polymerization occurs, initiated by the cation, and the spectrum changes to that of an alkyl type of radical, =N—ĊH—CH2, trapped in the polymer. Single crystals were used for a detailed analysis of the nuclear hyperfine parameters of the observed radicals.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1968.150060522
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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