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5 条记录 (耗时 0.012 秒)

    Process for the preparation of vinylene carbonate, and the use thereof
    1.
    发明授权
    Process for the preparation of vinylene carbonate, and the use thereof 有权
    制备碳酸亚乙烯酯的方法及其用途

    公开(公告)号：US06395908B1

    公开(公告)日：2002-05-28

    申请号：US09715048

    申请日：2000-11-20

    申请人： Bernhard Seifert ,  Sylvia Becker ,  Mark Neuschütz

    发明人： Bernhard Seifert ,  Sylvia Becker ,  Mark Neuschütz

    IPC分类号： C07D31710

    CPC分类号： C07D317/40 ,  H01M10/0525 ,  H01M10/0567

    摘要： The invention relates to a process for the preparation of vinylene carbonate of the formula (I) by reacting a monohaloethylene carbonate of the formula (II) in which X is a halogen atom, with a dehydrohalogenating agent at elevated temperature in the presence of an organic solvent, characterized in that the organic solvent employed is ethylene carbonate. The process according to the invention enables vinylene carbonate to be prepared in a simple manner and in high yield. The vinylene carbonate prepared in accordance with the invention can be used for various applications.

    摘要翻译： 本发明涉及一种制备式（I）的碳酸亚乙烯酯的方法，该方法通过在有机溶剂存在下，在升高的温度下使式（II）的单卤代亚乙基碳酸酯（其中X为卤素原子）与脱卤化氢剂反应 溶剂，其特征在于所用的有机溶剂是碳酸亚乙酯。根据本发明的方法使得能够以简单的方式和高产率制备碳酸亚乙烯酯。 根据本发明制备的碳酸亚乙烯酯可用于各种应用。

    Synthesis of alkylene carbonates using a catalyst system comprising metal halide and pyridine or pyridine derivative
    2.
    发明授权
    Synthesis of alkylene carbonates using a catalyst system comprising metal halide and pyridine or pyridine derivative 失效
    使用包含金属卤化物和吡啶或吡啶衍生物的催化剂体系合成碳酸亚烷基酯

    公开(公告)号：US06407264B2

    公开(公告)日：2002-06-18

    申请号：US09780235

    申请日：2001-02-09

    申请人： Hoon Sik Kim ,  Jai Jun Kim ,  Byung Gwon Lee ,  Hong Gon Kim

    发明人： Hoon Sik Kim ,  Jai Jun Kim ,  Byung Gwon Lee ,  Hong Gon Kim

    IPC分类号： C07D31710

    CPC分类号： C07D317/36 ,  C07D317/38

    摘要： The present invention relates to a method to prepare alkylene carbonate of the formula (1) wherein, R1 and R2 are each independently H; C1-C4 alkyl or phenyl group; which method characterized by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising a) metal halide [MXm] and b) pyridine or pyridine derivative [Py], wherein Py is selected from a group of pyridines; M is a metal atom selected from the group consisting of Zn, Fe, Mn, Pb and In; X is a halogen selected from the group consisting of Cl, Br and I; and m is 2 or 3.

    摘要翻译： 本发明涉及一种制备式（1）的碳酸亚烷基酯的方法，其中R 1和R 2各自独立地为H; C1-C4烷基或苯基;所述方法的特征在于在催化剂体系存在下使环氧烷与二氧化碳反应，所述催化剂体系包含a）金属卤化物[MXm]和b）吡啶或吡啶衍生物[Py]，其中Py选自 一组吡啶; M是选自Zn，Fe，Mn，Pb和In的金属原子; X是选自Cl，Br和I的卤素; m为2或3。