Concise Preparation of the (3<i>E</i>,5<i>Z</i>)-Alkadienyl System. New Approach to the Synthesis of Principal Insect Sex Pheromone Constituents
作者:Valentine Ragoussis、Maria Panopoulou、Nikitas Ragoussis
DOI:10.1021/jf049406b
日期:2004.8.1
5Z)-3,5-alkadienoate was conveniently separated, by the use of urea inclusion complex formation. The importance of this procedure has been illustrated by the preparation of the (3E,5Z)-3,5-tetradecadienoic acid (megatomoic acid) 1, the (3E,5Z)-3,5-dodecadienyl acetate 2, and the (3E,5Z)-3,5-tetradecadienyl acetate 3. These compounds are the main components of insect sex pheromones and constitute synthetic
开发了一种新的快速低成本的(3E,5Z)-3,5-链二烯基体系的制备方法,该体系遇到了几种昆虫信息素成分。在催化量的乙酸哌啶存在下,(E)-2-烯醛与丙二酸氢乙酯在二甲亚砜中的Knoevenagel缩合反应,生成3,5-链二烯酸乙酯和2,4-链二烯酸乙酯的几何异构体的混合物(3E,5Z)-3,5-链二烯酸酯通过使用尿素包合配合物形成而方便地分离。通过制备(3E,5Z)-3,5-十四碳二烯酸(大分子甲酸)1,(3E,5Z)-3,5-十二碳烯二乙酸酯2和(3E ,5Z)-3,5-十四碳二烯基乙酸酯3。