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    Production of pure 1-amino-4-nitroanthraquinone-2-carboxylic acid
    1.
    发明授权
    Production of pure 1-amino-4-nitroanthraquinone-2-carboxylic acid 失效
    纯1-氨基-4-硝基蒽醌-2-羧酸的制备

    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。

    Manufacture of 3-aminobenzoylbenzoic acids
    2.
    发明授权
    Manufacture of 3-aminobenzoylbenzoic acids 失效
    3-氨基苯甲酰基苯甲酸的制备

    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。

    Production of anthraquinoneoxazoles
    3.
    发明授权
    Production of anthraquinoneoxazoles 失效
    生产蒽醌恶唑

    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：

    Coloured polystyrene or polystyrene copolymers and the production of the same
    7.
    发明专利
    Coloured polystyrene or polystyrene copolymers and the production of the same 未知

    公开(公告)号：GB1022652A

    公开(公告)日：1966-03-16

    申请号：GB4899862

    申请日：1962-12-31

    Applicant: BASF AG

    Inventor： SCHUHMACHER ALFRED ,  EHRHARDT ALFRED ,  HANSEN CLAUS PETER

    IPC: C08K5/34 ,  C08K5/3437 ,  C09B5/34

    Abstract: Coloured polystyrene or styrene copolymers contain as dye up to 2% of dissolved anthraquinone - 2,1(N) - 11, 21(N) - benzacriolone, or anthraquinone - 2,1(N) - 11,21(N) - naphthacriolone, i.e. where rings I and II may be substituted by halogen atoms or alkyl groups. The styrene copolymers may contain butadiene, e.g. 10% acrylonitrile or acrylic esters. A number of the acriolone dyes are specified. The dyes are brought into a finely divided form before use. The compositions may be granulated before being molded or shaped into articles.

    Production of 7.14-dioxo-5,7,12,14-tetrahydroquinolino-[2,3-b]-acridines
    9.
    发明专利
    Production of 7.14-dioxo-5,7,12,14-tetrahydroquinolino-[2,3-b]-acridines 未知

    公开(公告)号：GB985994A

    公开(公告)日：1965-03-17

    申请号：GB2687261

    申请日：1961-07-25

    Applicant: BASF AG

    Inventor： SCHUHMACHER ALFRED ,  EHRHARDT ALFRED

    IPC: C09B48/00

    Abstract: Linear-trans-quinacridones are prepared by reacting a 2,5-dianilino-terephthalic acid, which may be substituted by one or more halogen atoms or methyl or ethyl groups, with benzoyl bromide or benzotrichloride at temperatures between about 140 DEG and 250 DEG C. The process is preferably carried out in the presence of inert organic solvents or diluents, such as nitrobenzene, trichlorobenzene, N-methyl-pyrrolidone or naphthalene. In an example, 2,5-dianilino-terephthalic acid is heated to 175 DEG C. in nitrobenzene and benzotrichloride is run into the reaction mixture which is heated at 180 DEG C. for 5 hours, filtered, the residue washed with nitrobenzene, mixed with sodium carbonate, and finally treated with steam to give linear - trans - quinacridone. Specifications 896,803 and 917,830 are referred to.

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