Zingiberenol, (1<i>S</i>,4<i>R</i>,1′<i>S</i>)-4-(1′,5′-Dimethylhex-4′-enyl)-1-methylcyclohex-2-en-1-ol, Identified as the Sex Pheromone Produced by Males of the Rice Stink Bug Oebalus poecilus (Heteroptera: Pentatomidae)
作者:Márcio Wandré Morais de Oliveira、Miguel Borges、Carlos Kleber Zago Andrade、Raul Alberto Laumann、José Alexandre Freitas Barrigossi、Maria Carolina Blassioli-Moraes
DOI:10.1021/jf402765b
日期:2013.8.14
Bioassays using an olfactometer showed that Oebalus poecilus males produce the sexual pheromone, and the chemical analysis demonstrated that this compound is zingiberenol. Two groups of isomers, each containing four diastereoisomers, (1RS,4RS,1′S)- and (1RS,4RS,1′R)-zingiberenol, were prepared. These diastereoisomers were not separated on a chiral GC column. Therefore, to determine the absolute configuration
使用嗅觉仪进行的生物测定表明,东方豹油雄性产生性信息素,化学分析表明该化合物为姜油烯醇。两组异构体,每个异构体包含四个非对映异构体(1 RS,4 RS,1 'S)-和(1 RS,4 RS,1'R)-姜油烯醇。这些非对映异构体未在手性GC色谱柱上分离。因此,为了确定雄性产生的姜丁烯醇的碳1、4和1'的绝对构型,进行了以下策略。将含有雄性挥发物的提取物进行脱水微化学反应,生成姜丁烯,通过手性GC分析分离异构体,并与姜油中的天然姜丁烯进行比较,确定碳4和1'的绝对立体化学为从槲皮酚的13 C NMR谱图分别确定R和S以及碳1为R。最后,生物测定表明,O。poecilus女性对外消旋混合物和(1 RS,4 RS,1 'S)-姜黄烯醇反应。