公开(公告)号：US3886188A

公开(公告)日：1975-05-27

申请号：US39917473

申请日：1973-09-20

Applicant: BASF AG

Inventor： SCHUHMACHER ALFRED ,  SCHWANTJE GERD

IPC: C07C227/12 ,  C07C20060101 ,  C07C229/74 ,  C09B1/22

CPC classification number: C09B1/22

Abstract: An improvement in the process for the production of 1-amino-4nitroanthraquinone-2-carboxylic acid from 1-aminoanthraquinone-2carboxylic acid by reaction with formaldehyde in concentrated sulfuric acid and nitration of the reaction product into 1,2dihydro-6-nitro-7,8-diphthaloyl-3,1,4H-benzoxazone-4 followed by hydrolysis of the same. The improvement consists in precipitating the benzoxazone derivative by adding a precipitant, hydrolyzing the isolated benzoxazone derivative in aqueous solution and precipitating the 1-amino-4-nitro-anthraquinone-2-carboxylic acid from the alkaline solution by acidification. 1-amino-4nitroanthraquinone-2-carboxylic acid is obtained in a purity of 95 percent by weight or more.

Abstract translation: 通过在浓硫酸中与甲醛反应，由1-氨基蒽醌-2-羧酸生产1-氨基-4-硝基蒽醌-2-羧酸的方法的改进，并将反应产物硝化成1,2-二氢 -6-硝基-7,8-二邻苯二甲酰基-3,1,4H-苯并恶嗪-4，然后水解。 改进在于通过添加沉淀剂沉淀苯并恶嗪衍生物，水解分离的苯并恶嗪衍生物并通过酸化从碱性溶液中沉淀出1-氨基-4-硝基 - 蒽醌-2-羧酸。 得到纯度为95重量％以上的1-氨基-4-硝基蒽醌-2-羧酸。

公开(公告)号：US3919303A

公开(公告)日：1975-11-11

申请号：US45315174

申请日：1974-03-20

Applicant: BASF AG

Inventor： SCHUHMACHER ALFRED ,  HILLER HEINRICH ,  REDEKER JOERG

IPC: C07B61/00 ,  B01J23/00 ,  B01J25/00 ,  C07C20060101 ,  C07C229/52 ,  C07C101/78

CPC classification number: C07D233/78

Abstract: Improvement in the process for the manufacture of 3aminobenzoylbenzoic acids by catalytic reduction of the 3-nitro compounds, the improvement consisting in the reduction of the aqueous alkali metal salt solution of the 3-nitro compound in the presence of boric acid, its alkali metal or ammonium salts or mixtures thereof and in the presence of Raney nickel or nobel metal catalysts using hydrogen at atmospheric or slightly elevated pressure. The corresponding 3-aminobenzoylbenzoic acids are obtained in high yield.

Abstract translation: 通过3-硝基化合物的催化还原制备3-氨基苯甲酰基苯甲酸的方法的改进，其中包括在硼酸，碱的存在下还原3-硝基化合物的碱金属盐水溶液 金属或铵盐或其混合物，并且在阮内镍或诺贝尔金属催化剂存在下，在大气压或略高的压力下使用氢。 以高收率得到相应的3-氨基苯甲酰基苯甲酸。

公开(公告)号：US3926996A

公开(公告)日：1975-12-16

申请号：US42070273

申请日：1973-11-30

Applicant: BASF AG

Inventor： SCHUHMACHER ALFRED

IPC: C07D263/60 ,  C07D263/52 ,  C07D263/62 ,  C07D413/04 ,  C09B5/24 ,  C09B5/32

CPC classification number: C07D263/52 ,  C09B5/32

Abstract: Improvement in the process for the production of anthraquinoneoxazoles of the formula:

IN WHICH R is 1-anthraquinonyl, 2-anthraquinonyl or 1,9anthrapyrimidyl-(2) which may bear amino, halogen, cyano or nitro as a substituent, by condensation of an ohaloacylaminoathraquinone of the formula:

IN WHICH Hal is chloro or bromo in the presence of a salt of a weak acid with a strong base while heating. The improvement consists in carrying out the condensation in a water-miscible strongly polar aprotic solvent.

Abstract translation: 生产蒽醌恶唑的方法改进如下：

公开(公告)号：US3906012A

公开(公告)日：1975-09-16

申请号：US41256273

申请日：1973-11-05

Applicant: BASF AG

Inventor： SCHUHMACHER ALFRED ,  SCHWANTJE GERD

IPC: C07C67/00 ,  C07C231/00 ,  C07C231/02 ,  C07C235/84 ,  C07C237/30 ,  C07C237/48 ,  C07D265/12 ,  C09B1/22 ,  C09B1/28 ,  C07C103/75 ,  C09B1/36

CPC classification number: C07D265/12 ,  C09B1/22 ,  C09B1/28

Abstract: Production of amides of 1-aminoanthraquinone-2-carboxylic acid which bear hydrogen, cyclohexylamino, chloro, bromo or nitro as substituent in the 4-position by reaction of 1,2-dihydro-7,8diphthaloyl-3,1,4H-benzoxazone-4:

IN WHICH R2 is H, Cl, Br, NH-cyclohexyl or NO2, with an aliphatic or cycloaliphatic amine of one to eight carbon atoms in the molar ratio 1:1. Some of the amides are disperse dyes but particularly they are intermediates for the production of disperse dyes.

Abstract translation: 通过1,2-二氢-7,8-二邻苯二甲酰基-3,1,4H的反应制备在4-位上带有氢，环己基氨基，氯，溴或硝基作为取代基的1-氨基蒽醌-2-羧酸的酰胺 苯并恶嗪-4：

公开(公告)号：US3657283A

公开(公告)日：1972-04-18

申请号：US3657283D

申请日：1970-03-02

Applicant: BASF AG

Inventor： SCHMIDT HELMUT ,  SCHUHMACHER ALFRED

IPC: C09B3/06 ,  C09B3/12

CPC classification number: C09B3/06

Abstract: PRODUCTION OF BZ-1-BZ-1''-DIBENZANTHRONYL SULFIDES FROM HALOGEN-SUBSTITUTED BZ-1-BENZANTHRONES CHRACTERIZED BY THE USE OF AN ETHER ALCOHOL AS SOLVENT AND OF AN ALKALI METAL SULFIDE.