HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → HCID 54422259, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | 7-hydroxy-3-(3-methoxyphenyl)-4H-chromen-4-one | HCID 5715241 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 54422259 | HCID 54422259 | — |
Reaction Steps
7-Acetoxy-3′-methoxyisoflavone was prepared from 7-hydroxy-3′-methoxyisoflavone (1.7 g, 6.3 mmol), acetic anhydride (6 ml) and pyridine (1.0 ml) as described for 4′,7-diacetoxydaidzein. Yield: (1.6 g, 81%) m.p. 118° C. 1H NMR (CDCl3): δ 2.36 (s, 3H, OCOCH3), 3.85 (s, 3H, OMe), 6.95 (dd, 1H, J 2.0 Hz 8.3 Hz, H6), 6.70-7.40 (m, 5H, ArH), 8.01 (s, 1H, H2), 8.32 (d, 1H, J 8.7 Hz, H5).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07906660B2 |
| Source dataset | uspto-grants-2011_03 |
| ORD ID | ord-0afcc20df09e48b08169ff1dd62b26bc |
| Source note | uspto-grants-2011_03 |