HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 15171823, compound → HCID 15171898, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 15171823 | HCID 15171823 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 15171898 | HCID 15171898 | 84.8% |
Reaction Steps
A mixture of 0.7 g of rac-2-{2-[3-(acetyloxy)-4-methoxyphenyl]ethynyl}-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-6-ol, 0.2 g of 5% palladium on carbon and 50 ml of ethanol was hydrogenated at atmospheric pressure for 2 hours. The catalyst was removed by filtration and the filtrate was evaporated. Crystallization from ether/hexane gave 0.6 g of colorless crystals with m.p. 110°-113°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05260294 |
| Source dataset | uspto-grants-1993_11 |
| ORD ID | ord-b745f33370484edd8518e8c010c5d99e |
| Source note | uspto-grants-1993_11 |