Certain pyrimidine-containing dyestuffs
    1.
    发明授权
    Certain pyrimidine-containing dyestuffs 失效
    某些含嘧啶的染料

    公开(公告)号:US3862944A

    公开(公告)日:1975-01-28

    申请号:US25203172

    申请日:1972-05-10

    Applicant: BASF AG

    CPC classification number: C09B5/16

    Abstract: New dyes of the formula:

    IN WHICH TWO OF THE GROUPS X are hydroxyl and the third X is unsubstituted or substituted alkylamino, unsubstituted or substituted phenylamino, phenylthio, aliphatic, cycloaliphatic or aromatic acylamino or N''-alkylureido for dyeing synthetic material. Dyeings obtained therewith have good fastness properties. The invention relates to new dyes based on anthrapyrimidines for synthetic fibers.

    Abstract translation: 新染料的配方:

    Anthraquinoid disperse dyes
    3.
    发明授权
    Anthraquinoid disperse dyes 失效
    蒽醌分散染料

    公开(公告)号:US3867406A

    公开(公告)日:1975-02-18

    申请号:US36649873

    申请日:1973-06-04

    Applicant: BASF AG

    Inventor: SCHWANTJE GERD

    CPC classification number: C09B1/51

    Abstract: A disperse dye of the formula (I):

    in which ONE X is OH and the other X is NH2; and R is hydrogen, cycloalkyl, phenyl or alkyl which may bear hydroxyl or alkoxy as a substitutent. It dyes linear polyesters deep bluish green hues of outstanding fastness properties.

    Abstract translation: 式(I)的分散染料:

    Process for the production of 1-amino-4-nitroanthraquinone-2-carboxylic esters
    4.
    发明授权
    Process for the production of 1-amino-4-nitroanthraquinone-2-carboxylic esters 失效
    1-氨基-4-硝基蒽醌-2-羧酸酯的制备方法

    公开(公告)号:US3887591A

    公开(公告)日:1975-06-03

    申请号:US41242173

    申请日:1973-11-02

    Applicant: BASF AG

    CPC classification number: C09B1/22 C07D265/12

    Abstract: The production of 1-amino-4-nitroanthraquinone-2-carboxylic esters by reaction of 1,2-dihydro-6-nitro-7,8-diphthaloyl-3,1,4Hbenzoxazone-4 with an alcohol in the presence of an acid catalyst. Pure carboxylic esters are immediately obtained in a high yield previous isolation of the carboxylic acid.

    Abstract translation: 通过1,2-二氢-6-硝基-7,8-二邻苯二甲酰基-3,1,4H-苯并恶嗪-4与醇在存在下反应生产1-氨基-4-硝基蒽醌-2-羧酸酯 酸催化剂。 立即以高产率先前分离羧酸得到纯羧酸酯。

    Production of pure 1-amino-4-nitroanthraquinone-2-carboxylic acid
    5.
    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

    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。

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