Process for the preparation of 6,13-dihydroquinacridones and
quinacridones
    1.
    发明授权
    Process for the preparation of 6,13-dihydroquinacridones and quinacridones 失效
    制备6,13-​​二氢喹吖啶酮和喹吖啶酮的方法

    公开(公告)号:US4812568A

    公开(公告)日:1989-03-14

    申请号:US12921

    申请日:1987-02-10

    IPC分类号: C07D471/04 C09B48/00

    CPC分类号: C07D471/04 C09B48/00

    摘要: Process for the preparation of a 6,13-dihydroquinacridone of the general formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 designate hydrogen or substituents customary for quinacridone, characterized in that an optionally substituted dialkyl 2,5-di-(phenylamino)-3,6-dihydroterephthalate is heated to temperatures of 240.degree.-320.degree. C. in an essentially oxygen-free atmosphere in the presence of a dimethyl-diphenyl ether isomer mixture of the formula ##STR2## as the solvent and/or diluent, and a process for the preparation of optionally substituted quinacridone, characterized in that the resulting 6,13-dihydroquinacridone is oxidized in the customary manner.

    摘要翻译: 用于制备通式(I)的化合物(I)的6,13-​​二氢喹吖啶酮的方法其中R 1,R 2,R 3和R 4表示氢或通常用于喹吖啶酮的取代基,其特征在于任选取代的二烷基2, 将5-二 - (苯基氨基)-3,6-二氢对苯二甲酸酯在基本上不含氧的气氛中在二甲基 - 二苯基醚异构体混合物存在下加热到240-320℃的温度,式 II)和/或作为溶剂和/或稀释剂的(IIa)和/或制备任选取代的喹吖啶酮的方法,其特征在于所得的6,13-​​二氢喹吖啶酮以常规方式被氧化。

    Anthraquinone dyestuffs
    2.
    发明授权
    Anthraquinone dyestuffs 失效
    蒽醌染料

    公开(公告)号:US4045457A

    公开(公告)日:1977-08-30

    申请号:US624292

    申请日:1975-10-20

    IPC分类号: C09B1/503 C09B1/515 C09B1/10

    CPC分类号: C09B1/503 C09B1/515

    摘要: The invention relates to a process for the preparation of water-insoluble chlorine-containing diaminodihydroxyanthraquinone dyestuffs. The process consists in that 2,8-dichloro-1,5-dinitroanthraquinone and/or 2,5-dichloro-1,8-dinitroanthraquinone is warmed with sulphur in concentrated sulphuric acid having a maximum SO.sub.3 content of 20% - possibly in the presence of boric acid - the resulting compounds are, if appropriate, post-halogenated and/or alkylated, preferably in the same reaction batch.The main advantage of this process is that it starts from 1,6- and/or 1,7-dichloroanthraquinone, for which there was hitherto no industrial use, but which unavoidably also arise during the synthesis 1,5- and 1,8-dichloroanthraquinones.

    摘要翻译: 本发明涉及一种制备水不溶性含氯二氨基二羟基蒽醌染料的方法。 该方法是将2,8-二氯-1,5-二硝基蒽醌和/或2,5-二氯-1,8-二硝基蒽醌与SO 2含量最高为20%的浓硫酸硫化 - 可能在 硼酸的存在 - 如果合适的话,所得化合物是后卤化和/或烷基化的,优选在相同的反应批料中。

    Process for the preparation of 1,5-dichloroanthraquinone
    3.
    发明授权
    Process for the preparation of 1,5-dichloroanthraquinone 失效
    制备1,5-二氯蒽醌的方法

    公开(公告)号:US4206130A

    公开(公告)日:1980-06-03

    申请号:US898262

    申请日:1978-04-20

    摘要: A process has been invented for the preparation of 1,5-dichloroanthraquinone which comprises reacting 1,5-dichloroanthraquinone with chlorine in the presence of at least 50% by weight of liquid phthalic anhydride, relative to the weight of 1,5-dinitroanthraquinone employed. The 1,5-dichloroanthraquinone is known to be a valuable starting material for the preparation of various dyestuffs.

    摘要翻译: 已经发明了一种制备1,5-二氯蒽醌的方法,该方法包括在至少50重量%的液体邻苯二甲酸酐存在下使1,5-二氯蒽醌与氯反应,相对于所用的1,5-二硝基蒽醌的重量 。 已知1,5-二氯蒽醌是制备各种染料的有价值的起始原料。

    Anthraquinone compounds
    5.
    发明授权
    Anthraquinone compounds 失效
    蒽醌化合物

    公开(公告)号:US4056544A

    公开(公告)日:1977-11-01

    申请号:US443119

    申请日:1974-02-15

    CPC分类号: C09B1/36 C09B1/26 C09B1/585

    摘要: Compounds of the formula ##STR1## wherein R represents cycloalkyl or the ##STR2## group wherein R.sub.1 and R.sub.2 denote alkyl and Y denotes hydrogen, chlorine, bromine, amino, alkylamino, cycloalkylamino, aralkylamino, arylamino, acylamino or arylmercapto, with the proviso that the nitro group is in the 5- or 8-position of the anthraquinone nucleus if Y denotes hydrogenAs well as their production and their use for the dyeing of synthetic fibres.

    摘要翻译: 式IMA的化合物,其中R代表环烷基或基团,其中R1和R2表示烷基,Y表示氢,氯,溴,氨基,烷基氨基,环烷基氨基,芳烷基氨基,芳基氨基,酰基氨基或芳基巯基,条件是 如果Y表示氢,则硝基在蒽醌核的5-或8-位,同时作为其合成纤维的染色使用。

    Process for the preparation of anthraquinone compounds
    6.
    发明授权
    Process for the preparation of anthraquinone compounds 失效
    制备蒽醌化合物的方法

    公开(公告)号:US4041053A

    公开(公告)日:1977-08-09

    申请号:US669893

    申请日:1976-03-24

    IPC分类号: C09B1/26 C09B1/16

    CPC分类号: C09B1/26

    摘要: The invention relates to the preparation of partially known anthraquinone compounds of the formula ##STR1## wherein Z.sub.1 represents an optionally substituted hydrocarbon radical,Z.sub.2 represents hydrogen or alkyl, one X represents a chlorine atom and the other X denotes a hydrogen atom, by subjecting technical chloroanthraquinone mixtures to a fractional vacuum distillation and reacting the 1,6(1,7)-dichloranthraquinone fraction thereby obtained with amines of the formula HNZ.sub.1 Z.sub.2.Moreover the invention relates to novel compounds of the above formula wherein Z.sub.2 is H and Z.sub.1 is alkyl, alkenyl, aralkyl or cycloalkyl. They are good dyestuffs for synthetic fibres or dyestuff intermediates.

    摘要翻译: 本发明涉及制备式IMA的部分已知的蒽醌化合物,其中Z1表示任选取代的烃基,Z 2表示氢或烷基,一个X表示氯原子,另一个X表示氢原子, 将氯代蒽醌混合物进行分级真空蒸馏,并使由此得到的1,6(1,7) - 二氯蒽醌级分与式HNZ1Z2的胺反应。