Intermediates for indoles
US3976639A · kind A · utility
27Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1975 |
| Grant date | Aug 24, 1976 |
| Priority date | — |
| Expiry date | Mar 31, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D209/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Ortho-nitrotoluenes are condensed with formamide acetals to yield the corresponding otho-nitro-.beta.-aminestyrenes which undergo cyclization upon reduction to yield indoles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.