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  • 1
    Electronic Resource
    Electronic Resource
    Mass spectral analysis of phenprocoumon and O-alkyl phenprocoumons (1989)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 18 (1989), S. 224-232 
    Details
    ISSN: 0887-6134
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Electron impact mass spectra of the oral coumarin anticoagulant phenprocoumon and its 4-O-alkyl and 2-O-alkyl (methyl and ethyl) derivatives (including deuterium and 13C-labelled compounds) have been analysed using accurate mass measurements and B/E and B2/E constant linked-scan techniques; fragmentation routes have been proposed which are different from those for simple coumarins and other oral coumarin anticoagulants. All compounds showed an ethyl group migration from the phenylpropyl side chain to the coumarin ring; the O-alkyl derivatives presented additionally a rearrangement with bond formation between a C atom of the O-alkyl group and the phenyl ring of the side chain. Previous literature reports about fragment ion structures for methylated phenprocoumon have been revised.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200180404
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  • 2
    Electronic Resource
    Electronic Resource
    Defense chemistry ofStenus comma (Coleoptera: Staphylinidae). LXI. (1976)
    Springer
    Journal of chemical ecology 2 (1976), S. 1-11 
    Details
    ISSN: 1573-1561
    Keywords: Stenus comma ; staphylinid ; pygidial defensive glands ; 1,8-cineole ; 6-methylhept-5-en-2-one ; stenusin ; spreading pressure ; surface-active agents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The staphylinidStenus comma secretes from its pygidial defensive glands at least four compounds which could be characterized as 1,8-cineole, 6-methylhept-5-en-2-one, isopiperitenol, and N-ethyl-3-(2-methylbutyl)piperidine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988019
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Über Reaktionen von Antimonhalogeniden. II. Die Reaktion von SbCl5 mit Oxalsäure-bis-(methylamid) (1973)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 401 (1973), S. 85-88 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Antimony Halides. II. The Reaction of SbCl5 with Oxalic Acid Bis(methylamide)The reaction of antimony pentachloride with the dimethylamide of oxalic acid results in the formation of a five-ring heterocyclic compound C4H7Cl4N2O2Sb(I), in which the ring components are Sb, N, C and O. It's synthesis and properties are discussed. Results of the mass spectrum see Table 1, a fraction scheme is given.
    Notes: Bei der Umsetzung von Antimonpentachlorid mit Oxalsäure-bis-(methylamid) entsteht der fünfgliedrige Heterocyclus C4H7Cl4N2O2Sb (I) mit Sb, N, C und O als Ringgliedern. Seine Darstellung und Eigenschaften werden beschrieben. Die Informationen aus dem Massenspektrum (Tab.1) werden durch ein Fraktionierungsschema wiedergegeben.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19734010111
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    Paper (German National Licenses)
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