Cleavable aromatic nitro compounds
US4139389A · kind A · utility
18Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Mar 7, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/39208
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aromatic nitro compounds are disclosed where the aromatic ring contains electron-withdrawing groups and said aromatic nitro compound is capable of undergoing intramolecular nucleophilic displacement after reduction of the nitro group. The compounds are especially useful in photographic elements where an image dye-providing material or a photographic reagent are released upon cleavage from the compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.