Method for making aminophenols and their amide derivatives
US4990671A · kind A · utility
2Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Dec 7, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C233/25
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-acylated dialkylaminophenols are produced at greater yields under mild reaction conditions by a novel in situ process which begins with catalytic hydrogenation of dialkylnitrosophenols in an aprotic organic reaction medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.