Process for preparing cyclic amides
US4309543A · kind A · utility
16Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Mar 17, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D221/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing cyclic amides from an optionally substituted acetic acid and an aromatic aminocarbonyl compound is disclosed. The process employs a promoter comprising tetravalent titanium or silicon and a pyridine compound to effect formation of the cyclic amides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.