The present invention relates to new compounds having an active methylene group or phenolic hydroxyl group and therefore capable of being used as photographic color couplers. The new compounds contain at least one radical of a phosphoric acid diester, phosphonic acid diester, phosphoric acid diamide, phosphonic acid diamide, phosphoric acid ester-amide or phosphonic acid ester-amide.
本发明涉及具有活性甲基或
酚羟基的新化合物,因此可用作摄影彩色偶合剂。新化合物含有至少一个
磷酸二酯,
膦酸二酯,
磷酸二酰胺,
膦酸二酰胺,
磷酸酯胺或
膦酸酯胺的基团。