HuagongsheHuagongshe Chemistry Print Report · For research reference only
Piperazine → HCID 22390778, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Piperazine | HCID 4837 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 3-(2-bromoethyl)Benzofuran | HCID 15075480 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 22390778 | HCID 22390778 | — |
Reaction Steps
84 mmol of 2-(benzofuran-3-yl)-1-bromoethane, 67 mmol of piperazine and 56 mmol of potassium carbonate are added to 200 ml of acetonitrile. After refluxing for 4 hours, the reaction mixture is cooled and then concentrated. The residue is taken up in dichloromethane, is washed with water, dried, filtered and then concentrated under reduced pressure. Chromatography over silica gel (dichloromethane/ethanol: 90/10) allows the expected product to be isolated.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06566364B2 |
| Source dataset | uspto-grants-2003_05 |
| ORD ID | ord-1ec9bf0beac94422b72910ebb11c4b07 |
| Source note | uspto-grants-2003_05 |