公开(公告)号：DE3813625A1

公开(公告)日：1989-11-02

申请号：DE3813625

申请日：1988-04-22

Applicant: BASF AG

Inventor： BENDER HERBERT DR ,  COLBERG HORST DR ,  TEICH FRIEDHELM DR ,  KEMPER REINHARD DR

IPC: C09B48/00

Abstract: Dihydroquinacridones, quinacridones and quinacridonequinones are prepared by cyclisation of 2,5-dianilino-3,6-dihydroterephthalic acid derivatives or 2,5-dianilinoterephthalic acid derivatives in liquid or solid aggregate state or as a solution, in each case in finely divided form, if appropriate in the presence of an oxidising agent.

公开(公告)号：DE3736261A1

公开(公告)日：1989-05-11

申请号：DE3736261

申请日：1987-10-27

Applicant: BASF AG

Inventor： BENDER HERBERT DR ,  COLBERG HORST DR ,  TEICH FRIEDHELM DR ,  KEMPER REINHARD DR

IPC: C09B48/00

Abstract: Process for the preparation of dihydroquinacridones, quinacridones and quinacridonequinones by cyclisation of 2,5-dianilino-3,6-dihydroterephthalic acid derivatives or 2,5-dianilinoterephthalic acid derivatives in the gas phase, in the presence of absence of an oxidising agent.

公开(公告)号：DE3888443D1

公开(公告)日：1994-04-21

申请号：DE3888443

申请日：1988-10-18

Applicant: BASF AG

Inventor： BENDER HERBERT DR ,  COLBERG HORST DR ,  TEICH FRIEDHELM DR ,  KEMPER REINHARD DR

IPC: C07D471/04 ,  C09B48/00

Abstract: Process for preparing dihydroquinacridones, quinacridones and quinacridonequinones by cyclising 2,5-dianilino-3,6-dihydrotere- phthalic acid derivatives or 2,5-dianilinoterephthalic acid derivatives in the liquid or solid state or as solution, in each case in finely divided form, or in the gas phase, in the presence or absence of an oxidising agent.

公开(公告)号：DE4024120A1

公开(公告)日：1992-02-06

申请号：DE4024120

申请日：1990-07-30

Applicant: BASF AG

Inventor： LAMM GUNTHER DR ,  TEICH FRIEDHELM DR

IPC: C07C225/16 ,  C07C225/22 ,  C07C309/52

Abstract: Aminobenzophenones have the formula where the ring A may be benzofused, X1 is hydrogen or hydroxysulfonyl, X2 is hydrogen, hydroxysulfonyl, hydroxysulfonylphenyl, hydroxysulfonylbenzyl or hydroxysulfonylphenylethyl, R1, R2 and R3 are each independently of the others hydrogen, halogen, C1-C12-alkyl, cyclohexyl or C1-C4-alkoxy, or one of them may also be the radical of the formula where L is a chemical bond, C1-C4-alkylene or -O-CH2- and Y1, Y2 and Y3 are each independently of the others hydrogen, halogen, C1-C12-alkyl or C1-C4-alkoxy and R4, X1, X2 and the ring A are each as defined above, and R4 is hydrogen or chlorine, with the proviso that X1 and X2 are not both hydrogen, their intermediates having the formula where L is as defined above.