Process for the manufacture of dihalodiphenylsulfones
    16.
    发明授权
    Process for the manufacture of dihalodiphenylsulfones 有权
    制备二卤代二苯砜的方法

    公开(公告)号:US09394248B2

    公开(公告)日:2016-07-19

    申请号:US14111929

    申请日:2012-04-12

    申请人: Chantal Louis

    发明人: Chantal Louis

    IPC分类号: C07C315/02 C07C315/00

    CPC分类号: C07C315/00 C07C317/14

    摘要: A process for the preparation of dihalodiphenylsulfones_such as 4,4′-dichlorodiphenyl sulfone or 4,4′-bis-(4-chlorophenylsulfonyl)biphenyl with high regioselectivity, at low temperature and in the absence of toxic reagents by reacting together at least one acid, at least one fluorinated anhydride and at least one halobenzene. The invented process is particularly suited for the manufacture of 4,4′-dichlorodiphenyl sulfone.

    摘要翻译: 制备二卤代二苯砜的方法,例如4,4'-二氯二苯砜或4,4'-双 - (4-氯苯基磺酰基)联苯,具有较高的区域选择性,低温和无毒性试剂通过使至少一种酸 ,至少一种氟化酐和至少一种卤代苯。 本发明的方法特别适用于制备4,4'-二氯二苯砜。