Highly Stereoselective Synthesis of the Sex Pheromone Components of the Southern Green Stink Bug Nezara viridula (L.) and the Green Stink Bug Acrosternum hilare (Say)
作者:Xin Chen、Levi Gottlieb、Jocelyn G. Millar
DOI:10.1055/s-2000-6253
日期:——
Diastereoisomeric (Z)-(1R,2S,4S)- and (Z)-(1S,2R,4S)-epoxybisabolenes (1 and 2), sex pheromone components of the stink bugs Nezara viridula and Acrosternum hilare were synthesized stereoselectively in three steps from commercially available (-)-limonene oxide 3. Two other stereoisomers, (E)-(1R,2S,4S)- and (E)-(1S,2R,4S)-epoxybisabolenes (7 and 9) were obtained in two steps from the same starting material. The other four stereoisomers are also accessible by simply substituting (+)-limonene oxide for 3, providing short, stereoselective routes to all eight possible stereoisomers.
反式二烯异构体(Z)-(1R,2S,4S)-和(Z)-(1S,2R,4S)-环氧双香烃(1和2),是臭虫Nezara viridula和Acrosternum hilare的性信息素成分,采用三步法从商业可得的(-)-柠檬烯氧化物3中立体选择性合成。两个其他的立体异构体,即(E)-(1R,2S,4S)-和(E)-(1S,2R,4S)-环氧双香烃(7和9),则通过两步法从相同的起始材料获得。其他四个立体异构体也可以通过简单地用(+)-柠檬烯氧化物替代3来获得,从而为所有八种可能的立体异构体提供了简短的立体选择性合成路线。