申请人:Agfa-Gevaert Aktiengesellschaft
公开号:US04524124A1
公开(公告)日:1985-06-18
Monoazo dyes corresponding to the following formula ##STR1## are suitable for use as light-stable cyan image dyes stable to reducing agents for the dye diffusion transfer process. In the above formula: Q represents the remainder of the molecule required to complete a fused benzene or thiophene ring, which contains additional electron acceptor groups, or to complete a fused pyridine, pyrimidine, pyridazine, pyrazine or thiazole ring; G represents --OH, acyloxy; R.sup.1 represents H or one or two identical or different radicals selected from the group consisting of halogen, acyl, acylamino and --CN; Y represents H, --OH, an amino group optionally substituted by alkyl or aryl, a cyclic amino group or a group of the formula --NH--SO.sub.2 --R.sup.2 ; R.sup.2 represents alkyl, aryl, an amino group optionally substituted twice by alkyl or a cyclic amino group; n=0, 1 or 2.
对应于以下公式##STR1##的单偶氮染料适用于作为稳定还原剂的光稳定青色图像染料,用于染料扩散转移过程。在上述公式中:Q代表分子的剩余部分,用于完成融合苯或噻吩环,其中包含额外的电子受体基团,或完成融合吡啶,嘧啶,吡嗪,吡嗪或噻唑环;G代表--OH,酰氧基;R.sup.1代表H或从卤素,酰基,酰胺基和--CN组成的一种或两种相同或不同的基团;Y代表H,--OH,氨基,可选地被烷基或芳基取代的环氨基,或者公式--NH--SO.sub.2--R.sup.2的基团;R.sup.2代表烷基,芳基,氨基,可选地被烷基取代两次的环氨基;n=0、1或2。