Improved Synthesis of (3<i>E</i>,7<i>Z</i>)-3,7-Tetradecadienyl Acetate, the Major Sex Pheromone Constituent of the Potato Pest <i>Symmetrischema tangolias</i> (Gyen)
作者:Valentine Ragoussis、Stamatis Perdikaris、Antonis Karamolegkos、Konstantina Magkiosi
DOI:10.1021/jf802473m
日期:2008.12.24
An efficient six-step synthesis of (3E,7Z)-3,7-tetradecadienyl acetate, the major component of the sex pheromone of the potato pest Symmetrischema tangolias (Gyen), is described, starting from the commercially available dihydropyran. The stereoselective formation of the 7Z double bond is accomplished by a Wittig reaction, while the 3E double bond is formed by a modified Knoevenagel condensation. The
从市售二氢吡喃开始,描述了一种有效的六步合成方法,合成了(3E,7Z)-3,7-十四碳二烯基乙酸酯(马铃薯害虫Symmetrischema tangolias(Gyen)的性信息素的主要成分)。7Z双键的立体选择性形成是通过Wittig反应完成的,而3E双键是通过改性的Knoevenagel缩合形成的。合成的总产率为28%,最终产物具有高立体化学纯度(95%)。本文报道的合成方法的简单性和低成本表明,对于这种严重的害虫,上述信息素在综合管理程序中具有潜在的实际用途。