Process for production of N-substituted carbazoles
US5254700A · kind A · utility
2Cited by
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20Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 19, 1993 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Feb 19, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D209/88
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is disclosed a process for the production of N-substituted carbazoles with high efficiency, in which a carbazole compound is reacted with an appropriate halogenated compound in an inert solvent in the presence of an acid-removing agent and an amine without using any quaternary ammonium salt which is required in the conventional process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.