HuagongsheHuagongshe Chemistry Print Report · For research reference only
4-methoxy-2-methyl-1-(phenylmethyl)-1H-indole → 1-Benzyl-2-methyl-1H-indol-4-ol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4-methoxy-2-methyl-1-(phenylmethyl)-1H-indole | HCID 10777147 | — |
| Reactant | Boron tribromide dichloromethane | HCID 22277759 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 1-Benzyl-2-methyl-1H-indol-4-ol | HCID 10752360 | 49% |
Reaction Steps
A solution of 1.25 g (5 mmol) of 4-methoxy-2-methyl-1-(phenylmethyl)-1H-indole and 20 mL of 1M BBr3 /CH2Cl2 in 50 mL of methylene chloride was stirred at room temperature for 5 hours and concentrated at reduced pressure. The residue was dissolved in ethyl acetate, washed with brine and dried (MgSO4). After concentrating at reduced pressure, the residue was chromatographed on silica gel eluting with 20% EtOAc/hexane to give 577 mg (49% yield) of 4-hydroxy-2-methyl-1-(phenylmethyl)-1H-indole, 125°-127° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05733923 |
| Source dataset | uspto-grants-1998_03 |
| ORD ID | ord-b929091e25a74504966cd0bf54a67e49 |
| Source note | uspto-grants-1998_03 |