Synthesis and field bioassay of the Israeli pine bast scale, Matsucoccus josephi, female sex pheromone
1993
Zegelman, L. | Hassner, A. | Mendel, Z. | Dunkelblum, E.
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.
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