Process for cyclopentadiene substitution with groups differing from each
other
    1.
    发明授权
    Process for cyclopentadiene substitution with groups differing from each other 失效
    用彼此不同的基团进行环戊二烯取代的方法

    公开(公告)号:US6063948A

    公开(公告)日:2000-05-16

    申请号:US184064

    申请日:1998-11-02

    摘要: Polysubstituted cyclopentadiene compound wherein at least two different substituents are present from the group consisting of linear, branched and cyclic alkyls, aralkyls and alkenyls, and a process for the preparation of a cyclopentadiene compound substituted with at least two different groups chosen from the group consisting of linear, branched, cyclic and aromatic alkyls and alkenyls, characterized in that it comprises the reacting of a halide of a first substituting group in a mixture of the cyclopentadiene compound and an aqueous solution of a base, in which the quantity of the base relative to the cyclopentadiene compound is between 5 and 30 mol/mol, in the presence of a phase transfer catalyst, followed by the addition of a halide of a second or optionally a third substituting group to the reaction mixture.

    摘要翻译: 多取代的环戊二烯化合物,其中至少两个不同的取代基存在于由直链,支链和环状烷基,芳烷基和烯基组成的组中,以及用于制备被至少两个不同基团取代的环戊二烯化合物的方法,所述不同基团选自 直链,支链,环状和芳族的烷基和烯基,其特征在于它包括第一取代基的卤化物与环戊二烯化合物的混合物与碱的水溶液的反应,其中碱的量相对于 在相转移催化剂存在下,环戊二烯化合物为5至30mol / mol,然后向反应混合物中加入第二或任选的第三取代基团的卤化物。

    Process for cyclopentadiene substitution
    3.
    发明授权
    Process for cyclopentadiene substitution 失效
    环戊二烯取代方法

    公开(公告)号:US06232516B1

    公开(公告)日:2001-05-15

    申请号:US08850930

    申请日:1997-05-02

    IPC分类号: C07C286

    摘要: The process for the preparation of a selectively substituted cyclopentadiene compound which includes reacting a halide of a substituting compound in a mixture of the cyclopentadiene compound and an aqueous solution of a base in the presence of a phase transfer catalyst, wherein during the reaction the quantity of base relative to the cyclopentadiene compound may at any moment be between 5 and 30 mol/mol.

    摘要翻译: 制备选择性取代的环戊二烯化合物的方法,其包括在相转移催化剂存在下使取代化合物的卤化物与环戊二烯化合物的混合物和碱的水溶液反应,其中在反应期间, 相对于环戊二烯化合物的碱可以在5至30mol / mol之间。