公开(公告)号：HUT44486A

公开(公告)日：1988-03-28

申请号：HU327287

申请日：1987-07-17

Applicant: BASF AG

Inventor： KERSTEN SIEGFRIED ,  KOENIG KARL-HEINZ ,  JAEGER KARL-FRIEDRICH ,  MUELLER ALBRECHT ,  RECKER HANS-GERT ,  PAWLICZEK JOSEF B ,  ROHR WOLFGANG ,  WIGGER AUGUST

IPC: C07C271/08 ,  A01N47/22 ,  C07C67/00 ,  C07C239/00 ,  C07C271/40 ,  C07C125/067

公开(公告)号：BR8206023A

公开(公告)日：1983-09-13

申请号：BR8206023

申请日：1982-10-15

Applicant: BASF AG

Inventor： HANSEN HANSPETER ,  MERKLE HANS ,  MUELLER ALBRECHT

IPC: C07D285/16 ,  C07D285/24

Abstract: 3-Isopropyl-2,1,3-benzothiadiazin-4-one-2,2-dioxide (bentazone) is isolated from waste water, originating from its preparation and working up, by treating the waste water with an acid to bring the pH initially to 7.5-9.5, adding 0.2-0.5% by volume, based on the waste water, of a 40-60 percent strength by weight aqueous bentazone salt solution and heating the mixture for 15-30 minutes at 75 DEG -110 DEG C. The solution thus treated is then cooled and brought to pH 1-3 with a mineral acid, whereupon the bentazone precipitates in a form which can be filtered off.

公开(公告)号：HU178438B

公开(公告)日：1982-05-28

申请号：HUBA003637

申请日：1978-03-09

Applicant: BASF AG

Inventor： MERKLE HANS ,  MUELLER ALBRECHT ,  ZOLLER KARL

IPC: C07C243/38 ,  C07D213/18 ,  C07D285/16 ,  C07D513/04

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.

公开(公告)号：CA1017338A

公开(公告)日：1977-09-13

申请号：CA194145

申请日：1974-03-05

Applicant: BASF AG

Inventor： MAISACK HERBERT ,  MUELLER ALBRECHT ,  ROMBERG HELMUT

IPC: A01N43/88 ,  A01P13/00 ,  C07D285/16

Abstract: Method for making an aqueous solution of substantially pure salts of 3-isopropyl-2,1,3-benzothiadiazin-(4)-one-2,2-dioxide from a solution of this compound in an organic solvent.

公开(公告)号：DE59813831D1

公开(公告)日：2007-01-11

申请号：DE59813831

申请日：1998-07-25

Applicant: BASF AG

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

IPC: C07D285/16 ,  C07D285/24

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.

公开(公告)号：TR200000424T2

公开(公告)日：2000-07-21

申请号：TR200000424

申请日：1998-07-25

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.

公开(公告)号：ZA987411B

公开(公告)日：2000-02-18

申请号：ZA987411

申请日：1998-08-18

Applicant: BASF AG

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

IPC: C07D285/24 ,  C07D285/16 ,  C07G

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.

公开(公告)号：ZA9807411B

公开(公告)日：2000-02-18

申请号：ZA9807411

申请日：1998-08-18

Applicant: BASF AG

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

IPC: C07D285/24 ,  C07D285/16 ,  C07G

CPC classification number: C07D285/16

公开(公告)号：NO20000787L

公开(公告)日：2000-02-17

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.

公开(公告)号：ZA854896B

公开(公告)日：1986-03-26

申请号：ZA854896

申请日：1985-06-28

Applicant: BASF AG

Inventor： MERKLE HANS ,  MUELLER ALBRECHT ,  HAMPRECHT GERHARD ,  REISSENWEBER GERNOT

IPC: C07D213/80 ,  C07C20060101 ,  C07C67/00 ,  C07C301/00 ,  C07C303/34 ,  C07C307/10 ,  C07D20060101 ,  C07D213/42 ,  C07D213/75 ,  C07D213/81 ,  C07C ,  C07D