HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Bicarbonate → 5-Amino-1,2-dihydroquinolin-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | 2-Methoxyquinolin-5-amine | HCID 12283036 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Solvent | Water | HCID 962 | — |
| Product | 5-Amino-1,2-dihydroquinolin-2-one | HCID 15719078 | 50.4% |
Reaction Steps
1.45 g (8.3 mmol) of 5-amino-2-methoxyquinoline is refluxed in 29 ml of 6N HCl for 4.5 hours. It is allowed to cool to room temperature, diluted with water, made basic with NaHCO3, extracted with ethyl acetate, the combined organic extracts are dried (Na2SO4) and concentrated by evaporation. Purification of the residue by chromatography on silica gel with hexane-ethyl acetate yields 670 mg of a yellow solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06897224B2 |
| Source dataset | uspto-grants-2005_05 |
| ORD ID | ord-0108357a918c47d997655ad57b9e657b |
| Source note | uspto-grants-2005_05 |