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

  1. J. Meinwald*,
  2. A. F. Kluge*,
  3. J. E. Carrel†, and
  4. T. Eisner†
  1. *Department of Chemistry, Cornell University, Ithaca, New York 14850
  2. †Section of Neurobiology and Behavior, Cornell University, Ithaca, New York 14850

Abstract

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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  1. PNAS 1971-07 vol. 68 no. 7 1467-1468
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