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  • 2,5-dimethyl-3-isopentenyl-6-isopentylpyrazine  (1)
  • 2,5-dimethyl-3-isopentylpyrazine  (1)
  • 2,6-dimethyl-3-isopentylpyrazine  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Phenylalkenals in ponerine(Leptogenys sp.) and myrmicine (Pogonomyrmex sp.) ants (1992)
    Springer
    Journal of chemical ecology 18 (1992), S. 847-854 
    Details
    ISSN: 1573-1561
    Keywords: 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
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988325
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Volatile compounds from ponerine ants in the genusMesoponera (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 651-665 
    Details
    ISSN: 1573-1561
    Keywords: 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
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994226
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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