Method for preparing hydroxylamines using vinylic compounds without base neutralization and reaction mixture produced thereby
US5646327A · kind A · utility
6Cited by
13References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1995 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Dec 8, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C303/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Substituted hydroxylamines useful in photographic processing solution can be prepared by reacting a hydroxylamine with a vinylic compound having an electron withdrawing substituent in a suitable solvent, in the absence of a neutralizing base. The resulting products can be used without isolation from the reaction solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.