利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.023 秒)

    Catalyst for producing N-substituted carbamates, and the preparation and application of the same
    3.
    发明授权
    Catalyst for producing N-substituted carbamates, and the preparation and application of the same 有权
    用于生产N-取代氨基甲酸酯的催化剂及其制备和应用

    公开(公告)号：US08450516B2

    公开(公告)日：2013-05-28

    申请号：US12780994

    申请日：2010-05-17

    申请人： Stefan Wershofen ,  Stephan Klein ,  Hongchao Li ,  Xinkui Wang ,  Qifeng Li ,  Maoqing Kang

    发明人： Stefan Wershofen ,  Stephan Klein ,  Hongchao Li ,  Xinkui Wang ,  Qifeng Li ,  Maoqing Kang

    IPC分类号： C07C261/00

    CPC分类号： B01J27/199 ,  B01J21/04 ,  B01J23/22 ,  B01J27/188 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J37/0201 ,  C07C269/06 ,  Y02P20/584 ,  C07C271/28

    摘要： The present invention relates to a novel catalyst for producing N-substituted carbamates, the preparation of the catalyst and an improved method for producing N-substituted carbamates from these novel catalysts. The active component of the catalyst is a heteropoly acid and the catalyst support comprises a metal oxide or a metalloid oxide. The catalyst can be used to promote the reaction of carbamate and amine, thereby generating N-substituted carbamates with high yield. In the presence of the catalyst, the reaction conditions are relatively mild, the catalytic activity and selectivity of the reaction are high, and the reaction time is relatively short. Furthermore, the catalyst can be conveniently separated from the reaction system and recycled. therefore, the catalyst can be used to facilitate the further scale-up test and commercial application.

    摘要翻译： 本发明涉及用于生产N-取代氨基甲酸酯的新型催化剂，催化剂的制备和由这些新型催化剂生产N-取代氨基甲酸酯的改进方法。 催化剂的活性组分是杂多酸，催化剂载体包含金属氧化物或类金属氧化物。 催化剂可用于促进氨基甲酸酯和胺的反应，从而以高产率生成N-取代的氨基甲酸酯。 在催化剂存在下，反应条件相对温和，反应的催化活性和选择性高，反应时间相对较短。 此外，催化剂可以方便地与反应体系分离并再循环。 因此，催化剂可用于促进进一步的放大测试和商业应用。