Acyclic ketones in the defensive secretion of a "daddy longlegs" (Leiobunum vittatum).
The defensive secretion of the "daddy longlegs" Leiobunum vittatum was analyzed and found to contain the acyclic ketones 4-methylheptan-3-one and E-4,6-dimethyl-6-octen-3-one as its major organic components. Although 4-methylheptan-3-one has been found previously as an alarm substance in certain ant genera, the second component, whose structure is confirmed by synthesis, is new.
D000818:Animals; D001097:Arachnida / Q000502:physiology*; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas; D005260:Female; D007259:Infrared Rays; D007659:Ketones / Q000032:analysis / Q000302:isolation & purification* / Q000378:metabolism; D008297:Male; D013058:Mass Spectrometry; D008832:Microchemistry; D010084:Oxidation-Reduction; D010126:Ozone; D013053:Spectrophotometry
D007659:Ketones; D010126:Ozone