HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 18357051, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Benzoic acid, 4-fluoro-, ethyl ester | HCID 67976 | — |
| Reactant | 1-(4-Pyridyl)piperazine | HCID 70517 | — |
| Solvent | Dimethyl Sulfoxide | HCID 679 | — |
| Product | HCID 18357051 | HCID 18357051 | — |
Reaction Steps
A solution of 4-(4-pyridyl)piperazine (9.78 g), ethyl 4-fluorobenzoate (9.7 ml) and powdered potassium carbonate (9.9 g) in dried dimethylsulphoxide (60 ml) was heated at 95° C. for 18 hours. The mixture was poured into water (1200 ml) and stirred for 30 minutes. The precipitate was filtered off, washed with water and dried. The solid was purified by flash column chromatography on alumina (ICN alumina N32-63) using 1% methanol/dichloromethane as eluent, to give ethyl 4-[4-(4-pyridyl)-1-piperazinyl]benzoate (4.85 g) as a cream solid, mp 162-164° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06313127B1 |
| Source dataset | uspto-grants-2001_11 |
| ORD ID | ord-9bac4581b26e4632ac04677ad9ec4e1e |
| Source note | uspto-grants-2001_11 |