申请人:CIBA-GEIGY AG
公开号:EP0089315A2
公开(公告)日:1983-09-21
Compounds of the formula
where Y is a tertiary group, X is hydrogen or a leaving group, and Q is hydrogen, amidino, alkyl or aryl, there being present in Y or Q a ballasting group which comprises 10 to 30 carbon atoms, exhibit a high secondary absorption in the blue region of the visible spectrum and are useful couplers in chromogenic monochrome negative material.
式中的化合物
其中,Y 为三级基团,X 为氢或离去基团,Q 为氢、脒基、烷基或芳基,Y 或 Q 中含有一个由 10 至 30 个碳原子组成的压载基团。