HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Carbonate → 3-(4-Fluorophenacyl)-1-(2-hydroxyethyl)pyrrolidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 2-Bromoethanol | HCID 10898 | — |
| Reactant | 3-(4-Fluorobenzoylmethyl)pyrrolidine | HCID 11085030 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | 3-(4-Fluorophenacyl)-1-(2-hydroxyethyl)pyrrolidine | HCID 14882708 | — |
Reaction Steps
A mixture of 30.5 g of 3-(4-fluorophenacyl)pyrrolidine (Chem. Pharm. Bull., 1977, 25(8), p. 1911-1922), 19.4 g of 2-bromoethanol, 15.6 g of sodium carbonate and 400 ml of acetonitrile is heated to reflux for 6 hours. The mixture is concentrated, the residue is taken up in 150 ml of aqueous saline, the product is extracted 5 times with 150 ml of dichloromethane and this organic phase is dried over anhydrous sodium sulfate and concentrated. The oil obtained is purified by chromatography on 650 g of silica (70-230 mesh), using a mixture of dichloromethane, methanol and ammonia solution (96:4:0.4 V/V) as eluant. A colorless oil is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05077288 |
| Source dataset | uspto-grants-1991_12 |
| ORD ID | ord-90163f3eb6c34aa0b7597b26a6cc43ae |
| Source note | uspto-grants-1991_12 |