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    31.
    发明专利
    未知

    公开(公告)号：NO314305B1

    公开(公告)日：2003-03-03

    申请号：NO20000787

    申请日：2000-02-17

    Applicant: BASF AG

    Inventor： MERKLE HANS RUPERT ,  WOERZ OTTO ,  FRETSCHNER ERICH ,  HANSEN HANSPETER ,  MUELLER ALBRECHT ,  BENZ KURT

    IPC: C07D285/24 ,  C07D285/16

    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.

    METHOD FOR PRODUCING N-SUBSTITUTED 2-PYRAZOLINE-5-ONE
    33.
    发明专利
    METHOD FOR PRODUCING N-SUBSTITUTED 2-PYRAZOLINE-5-ONE 未知

    公开(公告)号：CA2391907A1

    公开(公告)日：2001-05-25

    申请号：CA2391907

    申请日：2000-11-17

    Applicant: BASF AG

    Inventor： FRETSCHNER ERICH ,  KOOB KNUT ,  MERKLE HANS RUPERT

    IPC: C07D231/20 ,  C07D231/22

    Abstract: The invention relates to a method for producing N-substituted 2-pyrazoline-5 - one of the general formula (I), wherein R is defined as per claim 1. Said method is characterised in that a compound of the general formula (II), wherein R, X and Y are defined as per claim 1, is reacted with a molar exces s of alkali hydroxide at a high temperature in an aqueous reaction medium and the pH value is subsequently adjusted to

    Method for producing 4-amino-5-chloro-1-phenyl pyridazinone-(6)
    34.
    发明专利
    Method for producing 4-amino-5-chloro-1-phenyl pyridazinone-(6) 未知

    公开(公告)号：AU3433100A

    公开(公告)日：2000-10-23

    申请号：AU3433100

    申请日：2000-03-30

    Applicant: BASF AG

    Inventor： MERKLE HANS RUPERT ,  HERBIG KLAUS ,  FRETSCHNER ERICH ,  FROHLICH HELMUT

    IPC: C07D237/22

    Abstract: In a process for preparing 4-amino-5-chloro-1-phenylpyridazin-6-one by reacting 4,5-dichloro-1-phenylpyridazin-6-one with aqueous ammonia in the presence of a catalyst, the catalyst used is soluble in the aqueous alkaline reaction medium but is essentially insoluble in the reaction medium which has been acidified after removal of the 4-amino-5-chloro-1-phenylpyridazin-6-one.The process of the present invention makes it possible for the catalyst to be recovered and reused in a simple manner.

    PROCESS FOR PRODUCING OPTICALLY ACTIVE 2-HALOGEN PROPIONIC ACIDS
    37.
    发明专利
    PROCESS FOR PRODUCING OPTICALLY ACTIVE 2-HALOGEN PROPIONIC ACIDS 未知

    公开(公告)号：GR3030019T3

    公开(公告)日：1999-07-30

    申请号：GR990401100

    申请日：1999-04-20

    Applicant: BASF AG

    Inventor： MERKLE HANS RUPERT ,  FRETSCHNER ERICH ,  HANSEN HANSPETER ,  ZIPPERER BERNHARD

    IPC: C07B57/00 ,  C07C51/09 ,  C07C51/487 ,  C07C53/19

    Abstract: PCT No. PCT/EP96/00012 Sec. 371 Date Jan. 7, 1997 Sec. 102(e) Date Jan. 7, 1997 PCT Filed Jan. 4, 1996 PCT Pub. No. WO96/22272 PCT Pub. Date Jul. 25, 1996The present invention relates to a process for the preparation of optically active 2-halopropionic acids, in which the corresponding optically active alkyl 2-halopropionates are caused to react with a carboxylic acid at elevated temperature in a transacylation reaction with the formation of the optically active 2-halopropionic acid and the alkyl carboxylate, and the optically active 2-halopropionic acid obtained is separated from the reaction mixture. The optically active products produced are important intermediates for the preparation of plant protectants and pharmaceuticals.

    Water soluble salts of aryloxy-C1-C4-alkane carbotylic acids
    38.
    发明专利
    Water soluble salts of aryloxy-C1-C4-alkane carbotylic acids 未知

    公开(公告)号：AU703761B2

    公开(公告)日：1999-04-01

    申请号：AU4304296

    申请日：1995-12-13

    Applicant: BASF AG

    Inventor： MERKLE HANS RUPERT ,  BRENNER KARL SIEGFRIED ,  FRETSCHNER ERICH ,  SCHONHERR MICHAEL ,  GASTEL ANNE VAN

    IPC: A01N39/02 ,  A01N39/04 ,  C07C51/41 ,  C07C59/68 ,  C07C59/70

    Abstract: PCT No. PCT/EP95/04934 Sec. 371 Date Jun. 18, 1997 Sec. 102(e) Date Jun. 18, 1997 PCT Filed Dec. 13, 1995 PCT Pub. No. WO96/20155 PCT Pub. Date Jul. 4, 1996Process for preparing solid, free-flowing water-soluble salts of aryloxy-C1-C4-alkanecarboxylic acids by reacting the aryloxy-C1-C4-alkanecarboxylic acids with a salt-forming base, the salt formation taking place in the melt in the presence or absence of an entraining agent suitable for the azeotropic removal of water or in solution in the presence of an entraining agent suitable for the azeotropic removal of water and, if appropriate, removing the entraining agent from the reaction mixture during the reaction or subsequently and then isolating the solid salts in a customary manner.

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