HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 19936580, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | HCID 19936579 | HCID 19936579 | — |
| Reactant | Boron tribromide dichloromethane | HCID 22277759 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 19936580 | HCID 19936580 | 83.6% |
Reaction Steps
To a solution of 5-(3,5-di-tert-butyl-4-hydroxybenzoyl)-6-methoxyindan (3.8 g) in dichloromethane (30 ml) was added boron tribromide-dichloromethane (1:2, 3 ml) dropwise with ice-cooling and stirring. The mixture was stirred under ice-cooling for 15 minutes, after which ethanol (5 ml) was added dropwise. The mixture was then washed with water and dried (MgSO4) and the solvent was distilled off. To the residue was added hexane to give crystals of 5-(3,5-di -tert-butyl-4-hydroxybenzoyl)-6-hydroxyindan (3.06 g, 83.6% ) . Recrystallization from ethanol gave light yellow prisms, m.p. 155°-156° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05418239 |
| Source dataset | uspto-grants-1995_05 |
| ORD ID | ord-2382ad783faa417ea3b8088e12056cd7 |
| Source note | uspto-grants-1995_05 |