Isolation, identification, synthesis, and bioefficacy of female
Diacrisia obliqua (Arctiidae) sex pheromone blend. An Indian agricultural
pest*
J. S. Yadav, M. Y. Valli, and A. R. Prasad
Organic Division I, Indian Institute of Chemical Technology,
Hyderabad, 500007, India
Abstract: Diacrisia obliqua is a polyphagous pest especially
on oil seed crops. Adult female sex pheromone blend consists of five
pheromone components, which include (3Z,6Z)-cis-9,10-epoxyl,3,6-henicosatriene
and (3Z,6Z)-cis-9,10-epoxy3,6-henicosadiene. Synthesis of these enantiomers
was achieved through alkylative epoxide rearrangement and stereoselective
Wittig olefination reactions as key steps. Bioefficacy experiments both
at laboratory and minifield were very positive.
*Lecture presented at the 8th International
Chemistry Conference in Africa (8th ICCA), 30 July-4 August 2001, Dakar,
Sénégal. Other presentations are published
in this issue, pp. 1147-1223.
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