Process for the preparation of para-nitrophenol
US4788346A · kind A · utility
1Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 1987 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | May 27, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C201/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of para-nitrophenol by bringing a phenyl ester of an inorganic acid into contact with a nitrating agent in the presence of liquid hydrofluoric acid and a hydrolysis of the nitrated product obtained is carried out either simultaneously or in sequence with the nitration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.