Preparation of 7-(3-(propylamino)-2-hydroxypropoxy)flavone
US4758679A · kind A · utility
2Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1986 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | Jul 18, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In a process for preparing 7-[3-(propylamino)-2-hydroxypropoxy]flavone by the reaction of 7-(2,3-epoxypropoxy)flavone and n-propylamine, the improvement which resides in treating the beta-aminochalcone by-product with a weak organic acid to convert the chalcone to the desired aminated flavone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.