Method for isolating insect sex pheromones

Details Method for isolating insect sex pheromones Method for isolating insect sex pheromones

C - Chemistry, Metallurgy

07

C

260/574, 260/758

C07C 33/02 (2006.01) C07C 29/88 (2006.01) C07C 45/85 (2006.01) C07C 47/20 (2006.01) C07C 57/02 (2006.01)

Patent

CA 1109483

Abstract of the Disclosure The isomers of synthetic insect sex pheromones or their precursors are separated by selectively forming an inclusion complex with the E-isomer and urea or thiourea. In order for the E-isomer complex to form selectively it is necessary that the mono-olefin which forms the complex have a primary, linear chain of at least 7 atoms, a molecular diameter of 2.8 - 6.ANG., and a polar functional group having transverse dimensions or less than 6.ANG.. Branching between the olefinic bond and the polar functional group is limited to methyl groups.

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