Method for synthesizing benzotriazole
    1.
    发明授权
    Method for synthesizing benzotriazole 失效
    苯并三唑合成方法

    公开(公告)号:US07655805B2

    公开(公告)日:2010-02-02

    申请号:US12081983

    申请日:2008-04-24

    IPC分类号: C07D249/20

    CPC分类号: C07D249/18

    摘要: A method for synthesizing benzotriazole comprises acts of: preparing a first solvent comprising 2-(2-hydroxy-5-methylphenyl) benzotriazole, a basic agent and molecular sieves and a second solvent comprising 3-chloro-2-alkyl propylene; mixing the solvents; and heating the solvents. This method requires only one reaction vessel and produces few by-products, therefore is simpler and cheaper to produce. Furthermore, the molecular sieves are cheaper than catalysts in conventional reactions and may be recycled, giving even greater economic benefits.

    摘要翻译: 合成苯并三唑的方法包括以下作用:制备包含2-(2-羟基-5-甲基苯基)苯并三唑,碱性试剂和分子筛的第一溶剂和包含3-氯-2-烷基丙烯的第二溶剂; 混合溶剂; 并加热溶剂。 该方法仅需要一个反应容器并产生很少的副产物,因此生产更简单和便宜。 此外,分子筛比常规反应中的催化剂便宜,可以再循环,给予更大的经济效益。

    Method for synthesizing benzotriazole
    2.
    发明申请
    Method for synthesizing benzotriazole 失效
    苯并三唑合成方法

    公开(公告)号:US20090270632A1

    公开(公告)日:2009-10-29

    申请号:US12081983

    申请日:2008-04-24

    IPC分类号: C07D249/18

    CPC分类号: C07D249/18

    摘要: A method for synthesizing benzotriazole comprises acts of: preparing a first solvent comprising 2-(2-hydroxy-5-methylphenyl) benzotriazole, a basic agent and molecular sieves and a second solvent comprising 3-chloro-2-alkyl propylene; mixing the solvents; and heating the solvents. This method requires only one reaction vessel and produces few by-products, therefore is simpler and cheaper to produce. Furthermore, the molecular sieves are cheaper than catalysts in conventional reactions and may be recycled, giving even greater economic benefits.

    摘要翻译: 合成苯并三唑的方法包括以下作用:制备包含2-(2-羟基-5-甲基苯基)苯并三唑,碱性试剂和分子筛的第一溶剂和包含3-氯-2-烷基丙烯的第二溶剂; 混合溶剂; 并加热溶剂。 该方法仅需要一个反应容器并产生很少的副产物,因此生产更简单和便宜。 此外,分子筛比常规反应中的催化剂便宜,可以再循环,给予更大的经济效益。