Process for producing all trans-form polyprenols
    6.
    发明授权
    Process for producing all trans-form polyprenols 失效
    生产所有反式聚异戊二烯的方法

    公开(公告)号:US5714645A

    公开(公告)日:1998-02-03

    申请号:US739287

    申请日:1996-10-29

    摘要: An all trans-form polyprenol is obtained by; (A) subjecting a 3,7-dimethyl-6-hydroxy-7-octen-1-ol derivative to five-carbon lengthening reaction m-times which comprises reacting with 2-methyl-3,3-dimethoxy-1-butene and reducing the carbonyl group of the resulting compound, to obtain an allyl alcohol derivative; (B) halogenating the hydroxyl group of the allyl alcohol derivative to convert it to form an allyl halide derivative; (C) allowing the allyl halide derivative to react with a polyisoprenyl sulfone derivative to form a sulfonated polyprenol derivative; and (D) subjecting the sulfonated polyprenol derivative to desulfonylation to obtain the all trans-form polyprenol.

    摘要翻译: 全反式聚异戊二烯通过以下方法获得: (A)使3,7-二甲基-6-羟基-7-辛烯-1-醇衍生物进行五碳延长反应m次,其中包括与2-甲基-3,3-二甲氧基-1-丁烯和 还原所得化合物的羰基,得到烯丙醇衍生物; (B)将烯丙醇衍生物的羟基卤化以转化成烯丙基卤衍生物; (C)使烯丙基卤化物衍生物与聚异戊二烯基砜衍生物反应形成磺化的聚癸二烯衍生物; 和(D)使磺化的聚癸二烯衍生物脱磺酰化得到全反式聚异戊二烯。

    Process for preparing polyprenols
    10.
    发明授权
    Process for preparing polyprenols 失效
    聚异戊二烯的制备方法

    公开(公告)号:US5981811A

    公开(公告)日:1999-11-09

    申请号:US066734

    申请日:1998-04-27

    摘要: A process for the preparation of a polyprenol represented by formula (1): ##STR1## where Y and Z individually represent a hydrogen atom or are coupled together to form a carbon-carbon bond; R represents a hydrogen atom or a protective group for a hydroxyl group, and n is 0 or an integer not less than 1, by reacting an organic complex of an alkali metal with a compound represented by formula (2): ##STR2## where either V represents a halogen atom, while W and X are coupled together to form a carbon-carbon bond, or X represents a halogen atom, while V and W are coupled together to form a carbon-carbon bond; A represents a protective group for a hydroxyl group, and Y, Z and n are as defined above.

    摘要翻译: 一种由式(1)表示的聚异戊二烯的制备方法:其中Y和Z各自表示氢原子或偶联在一起形成碳 - 碳键; R表示氢原子或羟基的保护基,n为0或1以上的整数,通过使碱金属的有机配合物与式(2)表示的化合物反应:其中V表示 卤素原子,而W和X连接在一起形成碳 - 碳键,或X表示卤素原子,而V和W连接在一起形成碳 - 碳键; A表示羟基的保护基,Y,Z和n如上所定义。