Process for the preparation of N-arylhalopyrrolid-2-ones
US4645843A · kind A · utility
6Cited by
1References
20Claims
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Key dates
| Filing date | Feb 25, 1985 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Feb 25, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D207/273
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Production of N-arylhalopyrrolidones by intramolecular cyclization of an .alpha.-halogen-N-2-alkenylamide is conducted in the presence of a copper-containing catalyst and a primary or secondary aliphatic amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.