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  • 2,5-dimethyl-3-isopentenyl-6-isopentylpyrazine  (1)
  • 2,6-dimethyl-3-isopentylpyrazine  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Journal of chemical ecology 18 (1992), S. 847-854 
    ISSN: 1573-1561
    Schlagwort(e): Phenylalkenals ; Leptogenys spp ; Pogonomyrmex rugosus ; Hymenoptera ; Formicidae ; 2-phenylpropenal ; 2-phenyl-2-butenal ; 2,5-dimethyl-3-(1-methyl) butylpyrazine ; 2,5-dimethyl-3-isopentylpyrazine ; 2,5-dimethyl-3-isopentenyl-6-isopentylpyrazine ; 4-methyl-3-heptanone ; 5-methyl-3-hexanone ; Maillard reaction ; benzaldehyde ; chemoreceptors ; defensive allomones
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Cephalic extracts of two unrelated species of ants,Leptogenys processionalis andPogonomyrmex rugosus, have been found to contain 2-phenylpropenal and 2-phenyl-2-butenal, while two other species related to the first,L. chinensis andL. kitteli, lacked either.L. kitteli also produced a tetrasubstituted pyrazine found previously only in two New Zealand ants in the genusMesoponera. The chemical reactivity of the phenylalkenals suggests their function in repelling attack by predators.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Journal of chemical ecology 10 (1984), S. 651-665 
    ISSN: 1573-1561
    Schlagwort(e): Hymenoptera ; Formicidae ; Mesoponera ; ants ; ponerine ants ; secondary and tertiary aliphatic amines ; formamides ; acetamides ; isovaleramides ; 2,6-dimethyl-3-isopentylpyrazine ; aliphatic aldehydes and acids ; phenylacetic acid
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Volatile constituents have been characterized from two species of ponerine ants in the genusMesoponera. 2,5-Dimethyl-3-isopentyl-pyrazine has been identified from cephalic extracts ofM. castanea andM. castaneicolor, by gas chromatography-mass spectrometry. Combined gasters and thoraces of both species are also characterized by the presence of nonanal, nonanoic acid, isovaleric acid, phenylacetic acid, and undecanal, as well as a series of aliphatic amines and amides.N-Isoamylnonylamine was a major constituent that was accompanied byN-isoamylnonenylamine,N,N-diisoamylnonylamine,N-acetyl nonylamine,N-formyl isoamylnonylamine,N-isovaleroyl nonylamine, and several other secondary and tertiary amines. The possible significance of the amines and amides as idiosyncratic natural products ofMesoponera species is discussed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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