Preparation, intermediates for the preparation and the use of a mixture
of dodecdienol isomers
    1.
    发明授权
    Preparation, intermediates for the preparation and the use of a mixture of dodecdienol isomers 失效
    制备,中间体制备和使用十二二烯醇异构体的混合物

    公开(公告)号:US5599848A

    公开(公告)日:1997-02-04

    申请号:US512259

    申请日:1995-08-07

    摘要: A process for preparing a mixture of 8E,10E-dodecadienol (Ia), 8E,10Z-dodecadienol (Ib), 8Z,10E-dodecadienol (Ic) and 8Z,10Z-dodecadienol (Id),H.sub.3 C--CH.dbd.CH--CH.dbd.CH--(CH.sub.2).sub.6 --CH.sub.2 --OH(8E,10E=Ia)(8E,10Z=Ib)(8Z,10E=Ic)(8Z,10Z=Id)starting from 1,8-octanediol (II) which is converted with a halogenating agent into (III)Hal-CH.sub.2 --(CH.sub.2).sub.6 --CH.sub.2 --OH (III)where (III) is subsequently reacted with (IV),H.sub.2 C.dbd.CH--O--R (IV)to give (V)Hal-CH.sub.2 --(CH.sub.2).sub.6 --CH.sub.2 --O--CH(CH.sub.3)--OR(V),(V) is converted in the presence of magnesium and crotonaldehyde into (VI)H.sub.3 C--CH.dbd.CH--CH(OH)--(CH.sub.2).sub.8 --O--CH(CH.sub.3)--OR(VI)and the protective group R and the hydroxyl group are simultaneously eliminated from (VI) in the presence of acid, novel intermediates for this process, and methods for controlling the codling moth Cydia pomonella by interfering with mating using this mixture are described.

    摘要翻译: 制备8E,10E-十二二烯醇(Ia),8E,10Z-十二二烯醇(Ib),8Z,10E-十二二烯醇(Ic)和8Z,10Z-十二二烯醇(Id),H3C-CH = CH-CH =(CH 2)6 -CH 2 -OH(8E,10E = Ia)(8E,10Z = Ib)(8Z,10E = Ic)(8Z,10Z = Id) (III)Hal-CH 2 - (CH 2)6 -CH 2 -OH(III),其中(III)随后与(IV),H 2 C = CH-OR(IV)反应,得到(V) 在镁和巴豆醛存在下,将Hal-CH 2 - (CH 2)6 -CH 2 -O-CH(CH 3)-OR(V),(V)转化成(Ⅵ)H3C-CH = CH-CH (CH 2)8 -O-CH(CH 3)-OR(VI)和保护基R和羟基在酸的存在下同时从(VI)中除去,该方法的新中间体和控制苹果酸的方法 描述了通过使用该混合物干扰配对的飞蛾Cydia pomonella。