Dyeing/printing metal-contg polypropylene fibres - - fast violet and blue shades from aqs media

    公开(公告)号:DE2156602A1

    公开(公告)日:1973-05-24

    申请号:DE2156602

    申请日:1971-11-15

    Applicant: BASF AG

    Abstract: The dyestuffs usd are of formula (I): (where one X is OH and the other is 1-4C alkylamino in which one H atom may be substd. by 1-3C alkoxy, cyano, carbonamide, alkoxycarbonyl with a total of 2-5C atoms, phenyl or pyrrolidon-2-yl-1, or phenylamino in which 1 or 2 H atoms may be substd. by Cl, Br, OH, CH3, NO2, alkoxycarbonyl with a total of 2-5C atoms, alkyl and/or alkoxy with 1 or 2 C atoms, or in which one H atom may be substd. by the gps -CONR1R2 or - SO2NR1R2, or aliphatic acylamino with 2-8C atoms in the acyl gp. in which one or two H atoms may be substd. by Cl, Br, or 1-2C alkoxy, or cycloaliphatic acyl amino with 7-8C atoms in the acyl gp. or benzoylamino in which one or two H atoms may be substd. by Cl, Br, alkoxy and/or alkyl with 1 or 2 C atoms; R1 is H opt. branched 1-8C alkyl, 6-8C cycloalkyl, 2-4C hydroxyalkyl or alkoxyalkyl with a total of 3-5C atoms; R2 is H 1-8C alkyl, 2-4C hydroxyalkyl or 3-5C alkoxyalkyl. Cpds. (I) where one X is opt. substd. phenyl and the other X is OH are esp., suitable.

    14.
    发明专利
    未知

    公开(公告)号:CH602588A5

    公开(公告)日:1978-07-31

    申请号:CH1568173

    申请日:1973-11-08

    Applicant: BASF AG

    Abstract: The production of 1-amino-4-nitroanthraquinone-2-carboxylic esters by reaction of 1,2-dihydro-6-nitro-7,8-diphthaloyl-3,1,4H-benzoxazone-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.

    16.
    发明专利
    未知

    公开(公告)号:DE2254813A1

    公开(公告)日:1974-05-22

    申请号:DE2254813

    申请日:1972-11-09

    Applicant: BASF AG

    Abstract: The production of 1-amino-4-nitroanthraquinone-2-carboxylic esters by reaction of 1,2-dihydro-6-nitro-7,8-diphthaloyl-3,1,4H-benzoxazone-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.

    17.
    发明专利
    未知

    公开(公告)号:DE2247347A1

    公开(公告)日:1974-03-28

    申请号:DE2247347

    申请日:1972-09-27

    Applicant: BASF AG

    Abstract: An improvement in the process for the production of 1-amino-4-nitroanthraquinone-2-carboxylic acid from 1-aminoanthraquinone-2-carboxylic acid by reaction with formaldehyde in concentrated sulfuric acid and nitration of the reaction product into 1,2-dihydro-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-4-nitroanthraquinone-2-carboxylic acid is obtained in a purity of 95 percent by weight or more.

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