Acyclic Ketones in the Defensive Secretion of a “Daddy Longlegs” (Leiobunum vittatum)

AUTOR(ES)

Meinwald, J.

RESUMO

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.

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