Syntheses, Characterizations, and Biological Activities of Tetradeca-4,8-dien-1-yl Acetates as Sex Attractants of Leaf-Mining Moth of the Genus<i>Phyllonorycter</i>(Lepidoptera: Gracillariidae)
作者:Ilme Liblikas、Raimondas Mozūraitis、Ellen M. Santangelo、Remigijus Noreika、Anna-Karin Borg-Karlson
DOI:10.1002/cbdv.200800210
日期:2009.9
column. The isomers of tetradeca-4,8-dien-1-yl acetates eluted in the order of (Z,Z) (2176.1), (Z,E) (2178.4), (E,Z) (2185.9), and (E,E) (2186.4) from SPB-1, and (Z,E) (2124.3), (E,E) (2157.7), (Z,Z) (2128.9), and (E,Z) (2135.9) from DB-WAX columns. Field-screening tests for attractiveness of tetradeca-4,8-dien-1-yl acetates revealed that (4Z,8E)-tetradeca-4,8-dien-1-yl acetate significantly attracted
通过使用Wittig偶联反应制备(Z,E)-和(Z,Z)异构体的合成路线,通过合成路线立体选择性地合成了乙酸十四烷基-4,8-二烯-1-基酯的四种可能的异构体和相应的醇。关键步骤是将末端炔烃烷基化以制备(E,E)-和(E,Z)异构体。合成产物通过13C-NMR和1H-NMR光谱以及质谱方法进行表征。所有四种异构体均具有独特的质谱,其中m / z 81片段明显占优势。十四烷基4,8-dien-1-ols的洗脱顺序,然后加上括号中的保留指数,确定为(Z,Z)(2082.1),(Z,E)(2082.8),(E,E)( 2083.1)和(E,Z)(2083.2)来自非极性SPB-1色谱柱,以及(E,E)(2210.2),(Z,E)(2222.1),(E,Z)(2223.4)和( Z,Z)(2224.7),从极性DB-WAX柱中获得。依次以(Z,Z)(2176.1),(Z,E)(2178.4),(E,Z)(2185