HuagongsheHuagongshe Chemistry Print Report · For research reference only
3-Pyridinecarboxaldehyde → 7-Methoxy-3-(3-pyridyl)methylene-4-chromanone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 3-Pyridinecarboxaldehyde | HCID 10371 | — |
| Reactant | 7-methoxy-3,4-dihydro-2H-1-benzopyran-4-one | HCID 4387510 | — |
| Product | 7-Methoxy-3-(3-pyridyl)methylene-4-chromanone | HCID 53854154 | — |
Reaction Steps
By the method of Example 1, 7-methoxy-4-chromanone (10 g, 56 mmol) and 3-pyridine carbaldehyde (5.2 g, 73 mmol) were converted to present title product, isolated directly from the reaction mixture by cooling to 0° C., 11.9 g; m.p. 176-178° C.; MS 267 (M , base peak).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05998451 |
| Source dataset | uspto-grants-1999_12 |
| ORD ID | ord-8321761421f94fec82e479e48d8f093d |
| Source note | uspto-grants-1999_12 |