lmidomethyl blocked photographic reagents are useful in photographic elements and processes. The blocked photographic reagents have the structure:
wherein
X represents the atoms to complete a 5- or 6- membered ring or ring system;
R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms; and
PR represents the residue of an organic photographic reagent containing a heteroatom through which it is joined to the imidomethyl blocking group.
亚胺甲基封端感光试剂可用于感光元件和工艺中。 封端感光试剂具有以下结构:其中 X 代表原子,以完成 5 或 6 个成员的环或环系统;R 代表氢、1 至 4 个碳原子的烷基或 6 至 12 个碳原子的芳基;PR 代表含有杂原子的有机感光试剂的残留物,通过杂原子与
亚胺甲基封端基团连接。