Metallocenes and processes therefor and therewith
    1.
    发明授权
    Metallocenes and processes therefor and therewith 失效
    金属茂及其处理方法及其

    公开(公告)号:US5399636A

    公开(公告)日:1995-03-21

    申请号:US75712

    申请日:1993-06-11

    摘要: A composition is provided comprising a metallocene having the formula of: ##STR1## wherein each Z can be the same or different hydrocarbyl radical selected from the group consisting of cyclopentadienyl, indenyl, tetrahydroindenyl, fluorenyl, and mixtures thereof; each X can be the same or different and is selected from the group consisting of hydrogen, fluorine, chlorine, bromine, iodine, R, OR, NR.sub.2, PR.sub.2, or OQ, or mixtures thereof wherein the R is a C.sub.1 -C.sub.20 hydrocarbyl radical and Q is an inorganic moiety selected from the group consisting of silica, alumina, clay, phosphated alumina, and mixtures thereof; each Y can be the same or different and is an alkyl group, hydrogen, fluorine, chlorine, bromine, iodine, or mixtures thereof; E is selected from C, Sn, Si, Ge, B, Al, N, or P; M is a metal selected from Ti, Zr, Hf, Sc, Y, V, or La; m is a number sufficient to fill out the valences of metal M; and n is 1 or 2. Also provided is a process for preparing the metallocene by contacting a hydrocarbon having an acidic, replaceable hydrogen with an organolithium and an organohalosilane to prepare a ligand which is then contacted with an organo alkali metal compound to form a bridged ligand followed by contacting the bridged ligand with an organolithium and a metal halide. The composition is useful for olefin polymerization, hydrogenation, alkene epoxidation, alkene isomerization, and ketone reduction.

    摘要翻译: 提供了一种组合物,其包含具有下式的茂金属:其中每个Z可以是相同或不同的选自环戊二烯基,茚基,四氢茚基,芴基及其混合物的烃基; 每个X可以相同或不同,并且选自氢,氟,氯,溴,碘,R,OR,NR2,PR2或OQ,或其混合物,其中R是C1-C20烃基 Q是选自二氧化硅,氧化铝,粘土,磷酸化氧化铝及其混合物的无机部分; 每个Y可以相同或不同,并且是烷基,氢,氟,氯,溴,碘或其混合物; E选自C,Sn,Si,Ge,B,Al,N或P; M是选自Ti,Zr,Hf,Sc,Y,V或La的金属; m是足以填充金属M的价数; 并且n为1或2.还提供了通过使具有酸性可置换氢的烃与有机锂和有机卤代硅烷接触来制备金属茂的方法,以制备配体,然后与有机碱金属化合物接触以形成桥连 配体,然后使桥连配体与有机锂和金属卤化物接触。 该组合物可用于烯烃聚合,氢化,烯烃环氧化,烯烃异构化和酮还原。

    Fluorene compounds and methods for making
    3.
    发明授权
    Fluorene compounds and methods for making 失效
    芴类化合物及其制备方法

    公开(公告)号:US5347026A

    公开(公告)日:1994-09-13

    申请号:US75931

    申请日:1993-06-11

    摘要: A Process is disclosed comprising reacting an alkali metal salt of Z with MX.sub.4 to form a trihalo compound; reacting the trihalo compound with an alkali metal salt of Z' to form a dihalo compound; and reacting the dihalo compound with at least one alkali metal organic compound to form Z-MR.sub.2 -Z', where Z is a substituted or unsubstituted fluorenyl radical, M is Ge, Si, or Sn, X is Cl, Br, F, or I, each R is a hydrocarbyl radical containing 1 to 20 carbon atoms, and Z' is an unsubstituted cyclopentadienyl, substituted cyclopentadienyl, unsubstituted indenyl, substituted indenyl, unsubstituted fluorenyl, or a substituted fluorenyl. Also new fluorene compounds are disclosed.

    摘要翻译: 公开了一种方法,包括使Z的碱金属盐与MX 4反应以形成三卤化合物; 使三卤化合物与Z'的碱金属盐反应形成二卤代化合物; 并使二卤化合物与至少一种碱金属有机化合物反应形成Z-MR2-Z',其中Z是取代或未取代的芴基,M是Ge,Si或Sn,X是Cl,Br,F或 I,每个R是含有1至20个碳原子的烃基,Z'是未取代的环戊二烯基,取代的环戊二烯基,未取代的茚基,取代的茚基,未取代的芴基或取代的芴基。 还公开了新的芴化合物。