发明名称 |
Silver halide photographic materials. |
摘要 |
<p>The improved silver halide photographic material has a substantially colorless coupler that has a living group with a protected formyl group at the active site, said protected formyl group being such that subsequent to the elimination of the leaving group upon coupling reaction, the protective group for a formyl group undergoes cleavage, causing reaction with an aromatic primary amine to form a ballasted Schiff type dye. The novel substantially colorless coupler is capable of highly efficient dye formation.</p> |
申请公布号 |
EP0452883(A2) |
申请公布日期 |
1991.10.23 |
申请号 |
EP19910106056 |
申请日期 |
1991.04.16 |
申请人 |
KONICA CORPORATION |
发明人 |
KATOH, EISAKU;KIDA, SHUJI;SUGITA, SHUICHI |
分类号 |
C07D317/30;C07D317/46;C07D327/04;C07D339/06;C07D405/04;C07D409/04;C07D411/04;G03C7/305 |
主分类号 |
C07D317/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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