אסיף מאגר המחקר החקלאי

Synthesis and field bioassay of the Israeli pine bast scale, Matsucoccus josephi, female sex pheromone

Year:

1993

Source of publication :

Authors :

Volume :

34

Co-Authors:

Zegelman, L., Department of Chemistry, Bar-Ilan University, Ramat Gan, 52100, Israel
Hassner, A., Department of Chemistry, Bar-Ilan University, Ramat Gan, 52100, Israel
Mendel, Z., Institute of Plant Protection, Volcani Center, Bet Dagan, 50250, Israel
Dunkelblum, E., Institute of Plant Protection, Volcani Center, Bet Dagan, 50250, Israel

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Abstract:

We report the first synthesis of the two components of the female sex pheromone of Matsucoccus josephi (2E,4E,8E)-4,6-dimethyl-2,4,8-decatrien-7-one (1) and (2E,4Z,8E)-4,6-dimethyl-2,4,8-decatrien-7-one (2) utilizing the Reformatzky and Wittig reactions as key steps. A mixture of 1 and 2 and the separate isomers were bioassayed in a pine forest indicating that E isomer 1 is much more active than 2 and is also a kairomone for a predator. © 1993.

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