2,4-dihalo-3,5-dinitrobenzotrifluorides
    10.
    发明授权
    2,4-dihalo-3,5-dinitrobenzotrifluorides 失效
    2,4-DIHALO-3,5-DINITROBENZOTRIFLUORIDES

    公开(公告)号:US3586725A

    公开(公告)日:1971-06-22

    申请号:US3586725D

    申请日:1969-06-12

    Inventor: HUNTER DON L

    CPC classification number: C07C205/12 C07C201/08

    Abstract: 2,4-DIHALO-3,5-DINITROBENZOTRIFLUORIDES IN WHICH THE HALO IS BROMO OR CLHORO. THE COMPOUNDS ARE PREPARED BY REACTION OF 2,4-DIHALOBENZOTRIFLUORIDE WITH A MIXTURE OF FUMING SULFURIC ACID AND FUMING NITRIC ACID AT A TEMPERATURE OF BELOW ABOUT 90*C. THEY ARE USEFUL AS INTERMEDIATES FOR THE PREPARATION OF HERBICIDES.

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