21.
    发明专利
    未知

    公开(公告)号:AT346846T

    公开(公告)日:2006-12-15

    申请号:AT98942624

    申请日:1998-07-25

    Applicant: BASF AG

    Abstract: A process for preparing 3-isopropyl-1H-2,1,3-benzothiadiazin-4 (3H)-one 2,2-dioxide (I) or a salt of Iwhich comprises reacting anthranilic isopropylamide IIsimultaneously with sulfur trioxide or chlorosulfonic acid in the presence of an organic base or with adducts of sulfur trioxide and organic basesandphosphorus oxychloride at from 50° C. to the reflux temperature, followed, if appropriate, by conversion into its salts, is described.

    25.
    发明专利
    未知

    公开(公告)号:FI68233B

    公开(公告)日:1985-04-30

    申请号:FI780694

    申请日:1978-03-01

    Applicant: BASF AG

    Abstract: New and valuable process for the manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives by reaction of anthranilic acid amide or aminopyridine carboxamide derivatives with sulfur trioxide derivatives to give the sulfamic acid salts, followed by cyclization of these salts.

    27.
    发明专利
    未知

    公开(公告)号:DK1005462T3

    公开(公告)日:2007-03-26

    申请号:DK98942624

    申请日:1998-07-25

    Applicant: BASF AG

    Abstract: A process for preparing 3-isopropyl-1H-2,1,3-benzothiadiazin-4 (3H)-one 2,2-dioxide (I) or a salt of Iwhich comprises reacting anthranilic isopropylamide IIsimultaneously with sulfur trioxide or chlorosulfonic acid in the presence of an organic base or with adducts of sulfur trioxide and organic basesandphosphorus oxychloride at from 50° C. to the reflux temperature, followed, if appropriate, by conversion into its salts, is described.

    30.
    发明专利
    未知

    公开(公告)号:NO20000787D0

    公开(公告)日:2000-02-17

    申请号:NO20000787

    申请日:2000-02-17

    Applicant: BASF AG

    Abstract: A process for preparing 3-isopropyl-1H-2,1,3-benzothiadiazin-4 (3H)-one 2,2-dioxide (I) or a salt of Iwhich comprises reacting anthranilic isopropylamide IIsimultaneously with sulfur trioxide or chlorosulfonic acid in the presence of an organic base or with adducts of sulfur trioxide and organic basesandphosphorus oxychloride at from 50° C. to the reflux temperature, followed, if appropriate, by conversion into its salts, is described.

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