Process for the preparation of substituted halogenated aniline
US7176334B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Dec 16, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Feb 27, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C249/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of substituted halogenated anilines from substituted halogenated 1-chlorobenzenes which comprises a) reacting a substituted halogenated 1-chlorobenzene selectively with an imine in the presence of a transition metal catalyst complex and a base to form an N-aryl imine; b) hydrolyzing the N-aryl imine; and c) isolating the substituted halogenated aniline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.