Sexual attracting mixtures for Cossus cossus (Lepidoptera)
    8.
    发明授权
    Sexual attracting mixtures for Cossus cossus (Lepidoptera) 失效
    性别吸引混合物(Cossus cossus)(鳞翅目)

    公开(公告)号:US4656032A

    公开(公告)日:1987-04-07

    申请号:US333924

    申请日:1981-12-23

    IPC分类号: A01N37/02 A01P19/00 A01N25/00

    CPC分类号: A01N37/02

    摘要: Mixtures containing (Z)-5-dodecenyl-acetate optionally combined with other compounds are shown to have a high attracting power for the male insects of the species Cossus cossus.Said mixtures may be employed in traps both for a monitoring action on the population density in a certain area and for mass-captures, or they may be employed for permeating the air in a certain zone, thus preventing the insects from mating.

    摘要翻译: 含有(Z)-5-十二碳烯基乙酸酯任选与其他化合物组合的混合物显示出对于科氏科的雄性昆虫具有很高的吸引力。 所述混合物可以用于捕集器中,用于对特定区域中的群体密度进行监测作用并用于捕获,或者它们可用于渗透某一区域中的空气,从而防止昆虫交配。

    Preparation of compounds containing two conjugated double bonds cis-cis
and cis-trans
    9.
    发明授权
    Preparation of compounds containing two conjugated double bonds cis-cis and cis-trans 失效
    含有两个共轭双键的顺式 - 顺式和顺式 - 反式的化合物的制备

    公开(公告)号:US4317905A

    公开(公告)日:1982-03-02

    申请号:US41064

    申请日:1979-05-21

    摘要: A process is disclosed for preparing aliphatic compounds containing two conjugated double bonds cis-cis or cis-trans, characterized in that a compound of the general formula ##STR1## (in which R is H, alkyl from C.sub.1 to C.sub.10, or OY in which Y is a protective group selected from the class consisting of tetrahydropyranyl and 1-ethoxyethyl; X is an ester function selected from the class consisting of the acetates) is reacted with an alkyl-magnesium halide of the general formula:Z--Mg--R.sup.1 (II)(in which Z is chlorine, bromine or iodine, and R.sup.1 is a C.sub.1 -C.sub.10 alkyl group, or a group (CH.sub.2).sub.n OY in which Y has the same meaning as in formula (I), and n is a number from 3 to 10) in the presence of Li.sub.2 CuCl.sub.4, CuCl, CuBr, or CuI at temperatures ranging from about -30.degree. to +10.degree. C. in the presence of ethyl ether or tetrahydrofuran as solvent, to obtain an aliphatic compound of the general formula:R--CH.sub.2 --C.tbd.C--CH.dbd.CH--CH.sub.2 R.sup.1 (III)in which the carbon atoms linked with the double bond carry two hydrogen atoms in cis position, and reducing the triple bond of (III) with lithium-aluminum hydride to produce the trans-cis compound, or reducing (III) with dialkylborane or catecholborane to produce the cis-cis compound.

    摘要翻译: 公开了一种制备含有两个共轭双键顺式或顺式 - 反式的脂族化合物的方法,其特征在于通式为(I)的化合物(其中R为H,C1至C10的烷基或 OY,其中Y是选自四氢吡喃基和1-乙氧基乙基的保护基; X是选自乙酸酯的酯官能团)与通式Z-Mg的烷基卤化镁反应 -R1(II)(其中Z为氯,溴或碘,R1为C1-C10烷基或Y为与式(Ⅰ)中相同含义的基团(CH 2)n OY),n为 在三乙胺或四氢呋喃作为溶剂的存在下,在约-30℃〜+ 10℃的温度范围内,在Li2CuCl4,CuCl,CuBr或CuI存在下,为3〜10的数,得到脂肪族化合物 其中与双键连接的碳原子携带两个氢原子的通式为:R-CH 2 -C 3 CON C-CH = CH-CH 2 R 1(III) (III)与三氢化铝锂的三键还原以产生反式顺式化合物,或用二烷基硼烷或儿茶酚硼烷还原(Ⅲ)以产生顺式 - 顺式化合物。