Stilbene derivatives by desulfonation
    1.
    发明授权
    Stilbene derivatives by desulfonation 失效
    二苯乙烯衍生物通过脱磺酸

    公开(公告)号:US4847404A

    公开(公告)日:1989-07-11

    申请号:US233024

    申请日:1988-07-25

    CPC分类号: C07C255/00 C07C317/00

    摘要: The invention relates to novel sulfone compounds of formula I ##STR1## wherein R.sub.1 is an unsubstituted or substituted phenyl or naphthyl radical,R.sub.2 is hydrogen or the radical of the formula ##STR2## R.sub.3 and R.sub.4 are --CN or --COOR.sub.5, in which R.sub.5 is C.sub.1 -C.sub.4 alkyl, with the proviso that, if R.sub.2 is the radical of the formula ##STR3## R.sub.3 and R.sub.4 in formula I may be identical or different. The compounds of the invention are valuable intermediates for the preparation of fluorescent whitening agents of the stilbene series.

    摘要翻译: 本发明涉及式I的新型砜化合物其中R 1是未取代或取代的苯基或萘基,R 2是氢或式R 3和R 4的基团是-CN或-COOR 5, 其中R 5是C 1 -C 4烷基,条件是如果R 2是下式的基团R 3和式I中的R 4可以相同或不同。 本发明的化合物是制备芪系荧光增白剂的有价值的中间体。

    Sulfone compounds
    2.
    发明授权
    Sulfone compounds 失效
    砜化合物

    公开(公告)号:US4780558A

    公开(公告)日:1988-10-25

    申请号:US827117

    申请日:1986-02-07

    CPC分类号: C07C255/00 C07C317/00

    摘要: The invention relates to novel sulfone compounds of formula I ##STR1## wherein R.sub.1 is an unsubstituted or substituted phenyl or naphthyl radical,R.sub.2 is hydrogen or the radical of the formula ##STR2## R.sub.3 and R.sub.4 are --CN or --COOR.sub.5, in which R.sub.5 is C.sub.1 -C.sub.4 alkyl, with the proviso that, if R.sub.2 is the radical of the formula ##STR3## R.sub.3 and R.sub.4 in formula I may be identical or different. The compounds of the invention are valuable intermediates for the preparation of fluorescent whitening agents of the stilbene series.

    摘要翻译: 本发明涉及式I的新型砜化合物其中R 1是未取代或取代的苯基或萘基,R 2是氢或式R 3和R 4的基团是-CN或-COOR 5, 其中R 5是C 1 -C 4烷基,条件是如果R 2是下式的基团R 3和式I中的R 4可以相同或不同。 本发明的化合物是制备芪系荧光增白剂的有价值的中间体。

    Mixtures of fluorescent whitening agents
    6.
    发明授权
    Mixtures of fluorescent whitening agents 失效
    荧光增白剂的混合物

    公开(公告)号:US4891153A

    公开(公告)日:1990-01-02

    申请号:US228643

    申请日:1988-08-05

    IPC分类号: C09B67/42 C09B67/22 D06L3/12

    CPC分类号: D06L3/125

    摘要: Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of a symmetrically or unsymmetrically substituted first 1,4-bis(cyanostyryl)benzene and 49 to 1% by weight of an unsymmetrically substituted second 1,4-bis(cyanostyryl)benzene that differs from the first, a process for the preparation of said mixtures by condensing terephthalaldehyde with a di(C.sub.1 -C.sub.4)alkylphosphonomethylbenzonitrile to cyano-4-formylstilbene, which is further condensed, either direct or after isolation, with at least one other di(C.sub.1 -C.sub.4)alkylphosphonomethylbenzonitrile, the use of these mixtures for whitening polyester fibres, and compositions containing said mixtures for whitening polyester fibres.

    摘要翻译: 由对称或不对称取代的第一1,4-双(氰基苯乙烯基)苯和49至1重量%的不对称取代的第二1,4-双(氰基苯乙烯基)苯的51至99重量%的荧光增白剂混合物 其与第一种不同之处在于,通过将对苯二甲醛与二(C 1 -C 4)烷基膦酰基甲基苄腈缩合成氰基-4-甲酰基茋而制备所述混合物的方法,其直接或分离后与至少一种其它二 (C1-C4)烷基膦酰基甲基苄腈,使用这些用于增白聚酯纤维的混合物,以及含有用于增白聚酯纤维的所述混合物的组合物。

    Mixtures of fluorescent whitening agents
    8.
    发明授权
    Mixtures of fluorescent whitening agents 失效
    荧光染料的混合物

    公开(公告)号:US5072016A

    公开(公告)日:1991-12-10

    申请号:US581244

    申请日:1990-09-07

    IPC分类号: C09B67/22 D06L3/12

    CPC分类号: D06L3/125

    摘要: Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of 1-(4-cyanostyryl)-4-(3'-styryl)benzene, 49 to 1% by weight of 1-(4-cyanostyryl)-4-(2'-cyanostyryl)benzene and 0.5 to 5% by weight of 1,4-bis(cyanostyryl)benzene, a process for the preparation of said mixtures by condensing terephthalaldehyde with a 4-dialkylphosphonomethylbenzonitrile to 4-cyano-4'-formylstilbene, which is further condensed, either direct or after isolation, with a 3- and 2-dialkylphosphonomethylbenzonitrile, the use of these mixtures for whitening polyester fibres, and compositions containing said mixtures for whitening polyester fibres.

    摘要翻译: 由51〜98.5重量%的1-(4-氰基苯乙烯基)-4-(3'-苯乙烯基)苯组成的荧光增白剂混合物,48.5〜1重量%的1-(4-氰基苯乙烯基)-4-( 2'-氰基苯乙烯基)苯和0.5至5重量%的1,4-双(氰基苯乙烯基)苯,通过将对苯二甲醛与4-二烷基膦酰基甲基苄腈一起冷凝至4-氰基-4'-甲酰基芪制备所述混合物的方法, 其通过3-和2-二烷基膦酰基甲基苄腈直接或分离后进一步缩合,使用这些用于增白聚酯纤维的混合物,以及含有用于增白聚酯纤维的所述混合物的组合物。

    Mixtures of fluorescent whitening agents

    公开(公告)号:US4778622A

    公开(公告)日:1988-10-18

    申请号:US25023

    申请日:1987-03-12

    CPC分类号: D06L3/125

    摘要: Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of a symmetrically or unsymmetrically substituted first 1,4-bis(cyanostyryl)benzene and 49 to 1% by weight of an unsymmetrically substituted second 1,4-bis(cyanostyryl)benzene that differs from the first, a process for the preparation of said mixtures by condensing terephthalaldehyde with a di(C.sub.1 -C.sub.4) alkylphosphonomethylbenzonitrile to cyano-4-formylstilbene, which is further condensed, either direct or after isolation, with at least one other di(C.sub.1 -C.sub.4)alkylphosphonomethylbenzonitrile, the use of these mixtures for whitening polyester fibres, and compositions containing said mixtures for whitening polyester fibres.