公开(公告)号：DE3878796D1

公开(公告)日：1993-04-08

申请号：DE3878796

申请日：1988-09-03

Applicant: BASF AG

Inventor： KANTER HARTMUT DR ,  ORT BURKHARD DR

IPC: C07D265/26 ,  C07D487/04

Abstract: Prodn. of pyrazolo(5,1-b) quinazolones (I) involves reacting isatic anhydride cpds. (II), R1-3 independently=H, F, Cl or Br; with 3-methylpyrazole-5-one (III) at 40-150 deg.C and 1-5 bar in water as reaction medium. Pref. R1=F, Cl or Br in the 5-posn., R2=R3=H. Reaction is carried out in the presence of a wetting agent.

公开(公告)号：DE3864961D1

公开(公告)日：1991-10-24

申请号：DE3864961

申请日：1988-09-03

Applicant: BASF AG

Inventor： KANTER HARTMUT DR ,  KOWARSCH HEINRICH DR ,  ORT BURKHARD DR

IPC: B01J27/06 ,  C07B61/00 ,  C07D265/26

Abstract: Prodn. of halo-substd. isatoic anhydrides of formula (I) is claimed (where Y is H or 1-4C alkyl, and R1,R2 and R3 are H, Cl, Br, NO2, 1-4C alkoxy, 1-4C alkyl, CF3, 1-4C alkanoylamino, carbamoyl, mono- or di(1-4C alkyl) carbamoyl, sulphamoyl or mono- or di(1-4C alkyl) carbamoyl, provided that at least one of R1, R2 and R3 is/are Cl or Br). Process comprises halogenating corresponding isatoic anhydrides in which at least one of R1, R2 and R3 is/are H with at least 0.5 molar proportions of elementary chlorine or bromine in the presence of chlorosulphonic acid at -10 to +100 deg.C.

公开(公告)号：DE4020423A1

公开(公告)日：1992-01-02

申请号：DE4020423

申请日：1990-06-27

Applicant: BASF AG

Inventor： ORT BURKHARD DR ,  KUTH GUIDO DR

IPC: C07D401/04 ,  C09B25/00

Abstract: Method for preparing quinophthalones of the formula where X is hydrogen, chlorine or bromine and n is from 1 to 4, by condensing 8-aminoquinaldine with unsubstituted or chlorine- or bromine-monosubstituted or -polysubstituted phthalic anhydride in the presence of molten benzoic acid as diluent.

公开(公告)号：DE3525074A1

公开(公告)日：1987-01-22

申请号：DE3525074

申请日：1985-07-13

Applicant: BASF AG

Inventor： LOTSCH WOLFGANG DR ,  ORT BURKHARD DR

IPC: C09B57/04 ,  C08J3/20 ,  C08K5/34 ,  C09D11/02 ,  C09D17/00

Abstract: Isoindolinone colourants of the formula (I) in which A is optionally substituted by non-solubilising substituents. The colourants (I) yield yellowish-red to neutral red colourings which have good fastness to light. The colourants (I) are suitable for the pigmentation of coatings, printing inks and thermoplastics.

公开(公告)号：DE3854027D1

公开(公告)日：1995-07-27

申请号：DE3854027

申请日：1988-09-03

Applicant: BASF AG

Inventor： KANTER HARTMUT DR ,  ORT BURKHARD DR

IPC: C07D265/26 ,  C07D487/04

公开(公告)号：DE59101189D1

公开(公告)日：1994-04-21

申请号：DE59101189

申请日：1991-06-12

Applicant: BASF AG

Inventor： ORT BURKHARD DR ,  KUTH GUIDO DR

IPC: C07D401/04 ,  C09B25/00

Abstract: Method for preparing quinophthalones of the formula where X is hydrogen, chlorine or bromine and n is from 1 to 4, by condensing 8-aminoquinaldine with unsubstituted or chlorine- or bromine-monosubstituted or -polysubstituted phthalic anhydride in the presence of molten benzoic acid as diluent.