Process for the preparation of 5,6-dihydroxyindole and intermediate compounds
US5410067A · kind A · utility
2Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1992 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Jul 29, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1476
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Process for the preparation of 5,6-dihydroxyindole, wherein the compound of formula: ##STR1## in which R' denotes a hydrogen atom or an optionally substituted benzyl radical, is subjected either to the action of hydrogen under pressure or to a hydrogen transfer operation, in a solvent medium and in the presence of a hydrogenation catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.