Isatin process and products
US4188325A · kind A · utility
3Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1978 |
| Grant date | Feb 12, 1980 |
| Priority date | — |
| Expiry date | Aug 21, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B7/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An aniline is converted to a 3-lower hydrocarbonthiooxindole by processes already known in the art, the product converted to a 3-halo-3-lower hydrocarbonthiooxindole by oxidative halogenation, and the product subjected to hydrolysis to form the desired isatins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.