HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 5324401, compound → HCID 21270210, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 5324401 | HCID 5324401 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 21270210 | HCID 21270210 | — |
Reaction Steps
As example 26, but using 7-hydroxy-8-methyl-3-(4-methoxyphenyl)-4H-1-benzopyran-4-one (28 mg) instead of 7-hydroxy-8-methyl-3-(4-methylphenyl)-4H-1-benzopyran-4-one. A crystalline precipitate is formed when water is added; it is filtrated off and washed with water. 3,4-Dihydro-7-hydroxy-8-methyl-3-(4-methoxyphenyl)-2H-1-benzopyran is obtained; m.p. 140°-141°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04814346 |
| Source dataset | uspto-grants-1989_03 |
| ORD ID | ord-972fe3188379404e9c4210373ada6619 |
| Source note | uspto-grants-1989_03 |