公开(公告)号：FR1466923A

公开(公告)日：1967-01-20

申请号：FR48208

申请日：1966-02-03

Applicant: BASF AG

Inventor： BRAUN WILLY ,  BACHMANN GERHARD

IPC: C09B1/32 ,  C09B1/514 ,  C09B1/54 ,  C09B1/58

公开(公告)号：CA881579A

公开(公告)日：1971-09-21

申请号：CA881579D

Applicant: BASF AG

Inventor： BACHMANN GERHARD ,  MARX MATTHIAS

公开(公告)号：GB1061948A

公开(公告)日：1967-03-15

申请号：GB474066

申请日：1966-02-03

Applicant: BASF AG

Inventor： BRAUN WILLY ,  BACHMANN GERHARD

IPC: C09B1/32 ,  C09B1/514 ,  C09B1/54 ,  C09B1/58

Abstract: The invention comprises dyes of general formula wherein R is H or a C1-C4 hydrocarbon radical which may contain alkoxy groups as substituents, Y is H, hydroxyl, the radical or an alkylamino, arylamino, alkyl ether, aryl ether, alkyl thioether, aryl thioether or carboxylic acid ester radical and Z is a hydroxyl group or a group and the anthraquinone nucleus may contain other substituents. They are prepared by reacting an appropriate mono- or di-aminoanthraquinone with 2-(4-bromobenzoyl)-propionic acid or an ester thereof and the carboxylic acid group may be subsequently esterified by reaction with appropriate alcohols if desired. The reaction preferably takes place at 100-230 DEG C. in a solvent, e.g. nitrobenzene, naphthalene or chlorobenzenes using a slight stoichiometric excess of the propionic acid derivative. Preferably a basic reacting agent, e.g. alkali metal carbonates, acetates, and copper compounds may be used to accelerate the reaction.

公开(公告)号：FR1509274A

公开(公告)日：1968-01-12

申请号：FR90081

申请日：1967-01-05

Applicant: BASF AG

Inventor： BACHMANN GERHARD

IPC: C07D237/04 ,  C07D237/14

Abstract: 1,168,291. Pyridazones. BADISOHE ANILIN- & SODA-FABRIK A.G. 6 Jan., 1967, [7 Jan., 1966], No. 925/67. Heading C2C. Novel 6-aminophenyl-3-pyridazones of the Formula I wherein X is a hydrogen or halogen atom or an alkyl or alkoxy group and each of R 1 and R 2 is a hydrogen atom or an alkyl group, any alkyl groups in the substituents being optionally substituted by halogen atoms or hydroxyl groups, are obtained by dehydrogenating the corresponding 6 - aminophenyl - 4,5 - dihydro - 3- pyridazones, in which the radical R 1 may additionally represent an aliphatic or aromatic acyl group, using aromatic nitrosulphonic acids or salts thereof as dehydrogenating agents, the molar ratio of pyridazone to nitrosulphonic derivative being up to 1 : 0À5 per nitro group in the latter.

公开(公告)号：CA907513A

公开(公告)日：1972-08-15

申请号：CA907513D

Applicant: BASF AG

Inventor： BACHMANN GERHARD ,  ADOLPHI HEINRICH

IPC: C07C59/88

公开(公告)号：GB1168291A

公开(公告)日：1969-10-22

申请号：GB92567

申请日：1967-01-06

Applicant: BASF AG

Inventor： BACHMANN GERHARD

IPC: C07D237/04 ,  C07D237/14

Abstract: 1,168,291. Pyridazones. BADISOHE ANILIN- & SODA-FABRIK A.G. 6 Jan., 1967, [7 Jan., 1966], No. 925/67. Heading C2C. Novel 6-aminophenyl-3-pyridazones of the Formula I wherein X is a hydrogen or halogen atom or an alkyl or alkoxy group and each of R 1 and R 2 is a hydrogen atom or an alkyl group, any alkyl groups in the substituents being optionally substituted by halogen atoms or hydroxyl groups, are obtained by dehydrogenating the corresponding 6 - aminophenyl - 4,5 - dihydro - 3- pyridazones, in which the radical R 1 may additionally represent an aliphatic or aromatic acyl group, using aromatic nitrosulphonic acids or salts thereof as dehydrogenating agents, the molar ratio of pyridazone to nitrosulphonic derivative being up to 1 : 0À5 per nitro group in the latter.