Alkylation of acetylcyclopropane cyclohexylimine by ethylene oxide derivatives as a key step in the synthesis of some insect acetogenin pheromones
摘要:
The interaction of Li derivatives of acetylcyclopropane cyclohexylimine with ethylene, propylene, and isoprene oxides leads efficiently to the corresponding gamma-cyclopropylketols. The cyclopropylcarbinol corresponding to the first of them is smoothly converted under the action of the couple Me3SiBr/ZnBr2 to a linear E-C7-homoallyl bromide, which is then used in the stereocontrolled synthesis of tridec-4E-enyl and trideca-4E, 7Z-dienyl acetates - components of the sex pheromones of some Lepidoptera species.
Nonconjugated dienes from 1-alkenes: Application to the synthesis of sex pheromone (4E,7Z)-4,7-Tridecadienyl acetate
作者:Taek Hyeon Kim、Ki Man Park
DOI:10.1016/0040-4039(95)00905-r
日期:1995.7
(4E,7Z)-4,7-Tridecadienyl acetate 1, a component of the sex pheromone was synthesized from 5-hexenyl acetate. (E)-γ,δ-Unsaturated phosphonate as the key intermediate afforded a target molecule, using the Horner-Wadsworth-Emmons (HWE) reaction and desulfonylation as the main process.