Frontalin, the bark beetle pheromone

In 1996, Seybold in the USA requested me to prepare 10g of (lS,5R)-9 of 76% ee so as to use it for a field test to attract the Jeffrey pine beetle (Dendroctonus jeffreyi), which is an aggressive pest of 

let me tell you a story about Asian elephants (Elephas maximus) in connection with frontalin. In 1996, Rasmussen and coworkers found that female Asian elephants use a 97 3 mixture of (Z)- and 

7R) -3,4-Dehydro -exo-brevicomin and (S)-2-sec -butyl-4,5-dihyrothiazole, the pheromone components of the male mouse 

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