
%0 Journal Article
%A Cavill, GWK 
%A Houghton, E 
%T Some pyrazine derivatives from the Argentine ant, <I>Iridomyrmex humilis</I>
%J Australian Journal of Chemistry
%D 1974/04/01
%V 27
%N 4
%P 879-889
%K 
%R https://doi.org/10.1071/CH9740879
%U https://www.publish.csiro.au/paper/CH9740879 
%X 3-Isopentyl-2,5-dimethyl-, and the (Z)- and (E)-isomers of 2,5-dimethyl-3-styryl-pyrazine, have been fully characterized from the Argentine ant, I. humilis. A facile conversion of the (E)- into the (Z)-styryl derivative is noted. These pyrazines comprise 70 and 200 p.p.m, of the body weight of the insect. Mass spectrometric data suggests a further pyrazine, the 2,5-dimethyl-3-propyl derivative, is present at approximately 5 p.p.m. 
