HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 3-[(3,4-dimethoxyphenyl)methylene]-7-hydroxy-4(4H)-benzopyranone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Methanol | HCID 887 | — |
| Reactant | Veratraldehyde | HCID 8419 | — |
| Reactant | 7-Hydroxy-4-benzopyrone | HCID 5409279 | — |
| Solvent | Water | HCID 962 | — |
| Product | 3-[(3,4-dimethoxyphenyl)methylene]-7-hydroxy-4(4H)-benzopyranone | HCID 54106909 | — |
Reaction Steps
After 7-hydroxy-4(4H)-benzopyranone 1.0 g and 3,4-dimethoxybenzaldehyde 1.22 g were added to a mixture of concentrated hydrochloric acid 50 ml and methanol 40 ml, the mixture was refluxed for 1.5 hours and cooled to room temperature, water 100 ml was added and the mixture was allowed to stand for 30 minutes. The precipitated crystals were filtered.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06080781 |
| Source dataset | uspto-grants-2000_06 |
| ORD ID | ord-84683e2b0b38484f9aedc0f5660e8ab3 |
| Source note | uspto-grants-2000_06 |