Method for chlorination of methylated aromatic compounds
    4.
    发明授权
    Method for chlorination of methylated aromatic compounds 失效
    甲基化芳香族化合物氯化方法

    公开(公告)号:US5279719A

    公开(公告)日:1994-01-18

    申请号:US970305

    申请日:1992-11-02

    摘要: A process for chlorination of methylated aromatic compounds in a titanium tetrachloride is disclosed. The ring chlorination is first carried out by reacting said methylated aromatic compounds with chlorine gas under reduced light conditions, and then the side chain chlorination is carried out by reacting the resulting mixture with chlorine gas under light irradiation conditions. The process ensures continuous chlorination of aromatic rings and side chains of methylated aromatic compounds at a high yield without using any catalysts or perilous solvents such as carbon tetrachloride.

    摘要翻译: 公开了一种在四氯化钛中氯化甲基化芳族化合物的方法。 环氯化首先通过使所述甲基化芳香族化合物与降低光照条件下的氯气反应进行,然后通过在光照射条件下使所得混合物与氯气反应来进行侧链氯化。 该方法确保甲基化芳族化合物的芳香环和侧链在不使用任何催化剂或危险溶剂如四氯化碳的情况下以高产率连续氯化。