Process for preparing nitroaniline derivatives
US5466871A · kind A · utility
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1References
19Claims
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Inventor
Key dates
| Filing date | Jul 11, 1994 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Jul 11, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a nitroaniline derivative comprising a step of reacting an aromatic nitro compound with an O-alkylhydroxylamine or a salt thereof in the presence of a base and optionally a metallic catalyst, which process is industrially advantageous since it provides the nitroaniline derivative from the aromatic nitro compound in a high yield in one step, and the aminating agent used can be obtained from hydroxylamine at a relatively low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.