发明名称 |
3,6-Di(alkyl/phenyl)amino-9-carboxamidophenyl-xanthenes |
摘要 |
In one embodiment, the present invention is concerned with novel xanthene compounds of the formula <IMAGE> wherein each R1 the same or different is hydrogen or alkyl, each R2 the same or different is alkyl or phenyl, R3 is phenyl or alkyl, Y is an electron-withdrawing group and A is an anion. In another embodiment, the present invention is concerned with photographic products and processes employing these xanthene compounds.
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申请公布号 |
US4290955(A) |
申请公布日期 |
1981.09.22 |
申请号 |
US19800154620 |
申请日期 |
1980.05.30 |
申请人 |
POLAROID CORPORATION |
发明人 |
CINCOTTA, LOUIS;FOLEY, JAMES W. |
分类号 |
C07D311/82;G03C8/48;(IPC1-7):C07D311/82 |
主分类号 |
C07D311/82 |
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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