Pheromone synthesis. Part 262: Determination of the absolute configuration of the female sex pheromone [(1 S ,2 S )-(−)-(1,2-dimethyl-3-methylenecyclopentyl) acetaldehyde] of the pineapple mealybug ( Dysmicoccus brevipes ) by synthesis coupled with X-ray analysis
作者:Kenji Mori、Jun Tabata
DOI:10.1016/j.tet.2017.09.046
日期:2017.11
synthesized. Chirality was introduced by means of lipase-catalyzed asymmetric acetylation of (±)-2,3-dimethyl-2-cyclopenten-l-ol. X-rayanalysis of (−)-camphanate ester of (1S,2S)-(−)-2-(1,2-dimethyl-3-methylenecyclopentyl)ethanol confirmed its (1S,2S)-absolute configuration. The natural pheromone was identified with the (1S,2S)-aldehyde by comparing the specific rotation, enantioselective GC retention