Process for the preparation of poly-(-N-alkyliminoalanes)
    2.
    发明授权
    Process for the preparation of poly-(-N-alkyliminoalanes) 失效
    制备聚(N-烷基亚氨基亚胺)的方法

    公开(公告)号:US4296045A

    公开(公告)日:1981-10-20

    申请号:US770228

    申请日:1977-02-18

    CPC分类号: C08G79/10 C07F5/069 C08F36/04

    摘要: A poly(-N-alkyliminoalane) having the composition (HAlNR).sub.n, wherein R represents an aliphatic, cycloaliphatic, aromatic or alkyl-aromatic group, and n is a number in the range of 3 to 50, is prepared by directly reacting metallic aluminum with a primary amine having the formula H.sub.2 NR, wherein R has the meaning given above, in the presence of hydrogen at a pressure in the range of from 1 to 1000 kg/cm.sup.2 and at least a stoichiometric quantity of aluminum, at a temperature in the range of from room temperature to the dissociation temperature of the end product, and in the presence of a promoter such as a small quantity of the poly(-N-alkyliminoalane) constituting the end product of said reaction.

    摘要翻译: 具有组成(HA1NR)n的聚(N-烷基亚氨基亚氨烷),其中R表示脂族,脂环族,芳族或烷基 - 芳族基团,n为3〜50的数,是通过使金属 铝,其具有式H2NR的伯胺,其中R具有上述含义,在氢气存在下,在1至1000kg / cm 2的压力和至少化学计量的铝的存在下,在 在最终产物的室温至解离温度的范围内,以及在构成所述反应的最终产物的少量聚(N-烷基亚氨基亚氨烷)等促进剂存在下进行。

    Uranium allyl compounds
    9.
    发明授权
    Uranium allyl compounds 失效
    铀烯化合物

    公开(公告)号:US3994945A

    公开(公告)日:1976-11-30

    申请号:US529560

    申请日:1974-12-04

    IPC分类号: C07F5/00

    CPC分类号: C07F5/00

    摘要: A new uranium allyl compound, represented by the formula: ##EQU1## WHEREIN R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5, which may be the same or different, are members of the group consisting of H, alkyl radicals containing from 1 to 10 C atoms, aryl radicals containing from 6 to 10 C atoms, cycloalkyl radicals containing from 4 to 10 C atoms, and alkyl aryl radicals containing from 7 to 10 C atoms, the dotted line linking the three carbon atoms indicates possible delocalization of the valence electrons of the double bond, X is an anion selected from Cl.sup.-, Br.sup.- and I.sup.- and n is an integer ranging from 1 to 3. The members of that group of compounds are useful, respectively, as catalysts in the stereospecific polymerization of diolefins and may be prepared by reacting a compound represented by the formula: ##EQU2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 and the dotted line have the significance given above, with a compound represented by the formulae HX or X.sub.2, wherein X has the significance given above.

    摘要翻译: 由下式表示的新的铀烯丙基化合物:R2R3R4 ||| R1-C-C- C-R5UXn4-n可以相同或不同的R1,R2,R3,R4和R5是成员 由H组成的组,含有1〜10个C原子的烷基,含有6〜10个C原子的芳基,含有4〜10个C原子的环烷基,以及含有7〜10个C原子的烷基芳基, 连接三个碳原子的虚线表示双键的价电子可能的离域化,X是选自Cl - ,Br - 和I - 的阴离子,n是1〜3的整数。 该组化合物的成员分别可用作二烯烃的立体有择聚合中的催化剂,并且可以通过使由下式表示的化合物:R 2 R 3 R 4 || R 1 -C-C-C-R 5 U 4 R2,R3,R4和R5以及虚线具有上述含义,与式HX或X2表示的化合物, 其中X具有上述含义。