利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

51 条记录 (耗时 0.026 秒)

    Catalysts for reaction between an isocyanate and an alcohol
    5.
    发明授权
    Catalysts for reaction between an isocyanate and an alcohol 有权
    异氰酸酯与醇反应的催化剂

    公开(公告)号：US08816036B2

    公开(公告)日：2014-08-26

    申请号：US13123972

    申请日：2009-10-12

    申请人： Christian Maliverney ,  Laurent Saint-Jalmes

    发明人： Christian Maliverney ,  Laurent Saint-Jalmes

    IPC分类号： C08G18/22 ,  C08G18/42 ,  C07C269/02 ,  C08J9/04 ,  C08J9/08

    CPC分类号： C08G18/48 ,  B01J31/1805 ,  B01J31/2234 ,  B01J2231/34 ,  B01J2531/26 ,  C08G18/10 ,  C08G18/222 ,  C08G18/2825

    摘要： Catalysts, which are free of tin, are described which are useful in the reaction between an isocyanate and an alcohol, which is a key step for preparing polyurethane polymers. The catalyst is a metal complex or salt of formula (1): [Zn(L1)l1(L2)l2(Y)x]  (1) in which: l1≧1 and l2=0 or 1; with l1+l2=2, x=1 or 2, the symbol L1 represents a ligand which is a β-dicarbonylato anion or the enolate anion of a β-dicarbonyl compound or an acetylacetato anion derived from a β-ketoester, when l1=2, the symbols L1 are identical or different, the symbol L2 represents an anionic ligand which is different from L1, and the symbol Y represents a neutral ligand; where the metal complex or salt C of formula (1) is not zinc diacetylacetonate.

    摘要翻译： 描述了不含锡的催化剂，其可用于异氰酸酯和醇之间的反应，这是制备聚氨酯聚合物的关键步骤。 催化剂是式（1）的金属络合物或盐：[Zn（L1）11（L2）12（Y）x]（1）其中：l1≥1和l2 = 0或1; 其中l1 + l2 = 2，x = 1或2，符号L1表示一种配体，它是一种“二羰基”阴离子，或者是衍生自α-酮基的二羰基化合物或乙酰乙酰阴离子的烯醇化物阴离子， 当l1 = 2时，符号L1相同或不同，符号L2表示与L1不同的阴离子配体，符号Y表示中性配体; 其中式（1）的金属络合物或盐C不是二乙酰丙酮酸锌。

    Method For Preparation Of A Fluoroaromatic Compound From An Aminoaromatic Compound
    10.
    发明申请
    Method For Preparation Of A Fluoroaromatic Compound From An Aminoaromatic Compound 审中-公开
    从氨基芳香化合物制备氟芳族化合物的方法

    公开(公告)号：US20070276168A1

    公开(公告)日：2007-11-29

    申请号：US10588471

    申请日：2005-02-03

    申请人： Laurent Garel ,  Laurent Saint-Jalmes

    发明人： Laurent Garel ,  Laurent Saint-Jalmes

    IPC分类号： C07C25/13

    CPC分类号： C07B39/00 ,  C07C17/093 ,  C07C25/13 ,  C07D213/61 ,  C07D215/18 ,  C07D215/20

    摘要： The invention relates to a method for preparation of fluorinated aromatic compounds from the corresponding amines by replacement of the amino group with a fluorine atom. The method of preparation of a fluoroaromatic compound from an aromatic compound with at least one amino group on the aromatic ring is characterized by the reaction of said aromatic amine compound with a nitrosating agent in the presence of a source of boron trifluoride in an organic medium, and carrying out a thermal treatment of the reaction medium comprising the diazonium salt thus obtained to give the fluoroaromatic compound directly by decomposition of the diazonium salt without intermediate isolation thereof.

    摘要翻译： 本发明涉及通过用氟原子取代氨基从相应的胺制备含氟芳族化合物的方法。 芳族化合物与芳族化合物在芳环上具有至少一个氨基的氟代芳族化合物的制备方法的特征在于，在有机介质中存在三氟化硼的情况下，所述芳族胺化合物与亚硝化剂反应， 并对由此获得的包含重氮盐的反应介质进行热处理，直接通过分解重氮盐直接得到氟代芳族化合物，而无需中间分离。