HuagongsheHuagongshe Chemistry Print Report · For research reference only
Malonic Acid → HCID 20517749, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Malonic Acid | HCID 867 | — |
| Reactant | 9-hydroxy-1-oxo-1H-naphtho[2,1-b]pyran-2-carboxaldehyde acetate | HCID 86737239 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 20517749 | HCID 20517749 | — |
Reaction Steps
Thus, Compound 5 is refluxed with malonic acid in pyridine to obtain [9-(acetyloxy)-1-oxo-1H-naphtho[2,1-b]pyran-2-yl]-2-propenoic acid, compound 7. Additionally, Compound 6 may be refluxed in a similar fashion with malonic acid in pyridine to obtain [9-hydroxy-1-oxo-1H-naphtho[2,1-b]pyran-2-yl]-2-propenoic acid, Compound 7A.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04225722 |
| Source dataset | uspto-grants-1980_09 |
| ORD ID | ord-6eb2b93ab2e043f581feb58860e38c20 |
| Source note | uspto-grants-1980_09 |