摘要
【目的】利用Wittig反应合成桃蛀螟性信息素——顺、反-10-十六碳烯醛。【方法】以二甲亚砜钠盐为碱,以无水二甲亚砜(DMSO)为溶剂,在20~25℃的温度条件下通过Wittig反应合成目标物。【结果】利用Wittig反应合成了1.2g桃蛀螟性信息素——顺、反-10-十六碳烯醛,产率为30%,顺/反为20/80。田间引诱试验表明,合成的化合物在50/tg/诱芯剂量时对桃蛀螟的引诱效果最佳。【结论】利用Wittig反应合成的桃蛀螟性信息素不经过顺、反比例转化即可直接用于田间防治。
[Objective] Z/E-10-Hexadecenal, the sex pheromone of Dichocrocis puncticralis Guenee is to be synthesized by Wittig reaction. [Method] The Wittig reaction used methylsulfinyl carbanion-dimethyl sulfoxide as strony base in the solution of DMSO at the temperatures 20--25 ℃. [Result] 1.2 g sex pheromone is synthesized. Its yields are 30%, and ratios of Z/E 20/80. The field experiments have showed that the sex pheromone has the best effect when its dose is 50 μg every bait. [Conclusion] The sex pheromone synthesized by the method above can be used as attractants in field even without convert its ratios of Z/E.
出处
《西北农林科技大学学报(自然科学版)》
CSCD
北大核心
2008年第1期179-182,188,共5页
Journal of Northwest A&F University(Natural Science Edition)
基金
国家“十五”科技攻关项目(2002BA516A04)
关键词
桃蛀螟
性信息素
WITTIG反应
田间试验
Dicocrocis puncticralis Guenee
sex pheromone
Wittig reaction
field experment