HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonium Hydroxide → HCID 59088101, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonium Hydroxide | HCID 14923 | — |
| Reactant | Perchloric Acid | HCID 24247 | — |
| Reactant | HCID 69993368 | HCID 69993368 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 59088101 | HCID 59088101 | 50% |
Reaction Steps
A solution of 7-(benzyloxy)-2-[2-methoxyethenyl]-chroman (1.0 g, 3.3 mmol) in THF is treated with perchloric acid (0.3 ml), stirred at room temperature for 15 minutes, poured into dilute NH4OH and extracted with ether. The combined extracts are dried over MgSO4 and concentrated in vacuo. The resultant residue is chromatographed (silica gel/20% EtOAc in hexanes as eluent) to give the title product as a colorless oil, 0.484 g (50% yield), identified by NMR and mass spectral analyses.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06638972B2 |
| Source dataset | uspto-grants-2003_10 |
| ORD ID | ord-3198fca2b51f429d9f4990109ee10b97 |
| Source note | uspto-grants-2003_10 |