HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-Piperazinecarboxylic acid, ethyl ester → HCID 15481710, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-Piperazinecarboxylic acid, ethyl ester | HCID 8431 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 1-((2-(2,4-Difluorophenyl)-3-methyloxiran-2-yl)methyl)-1H-1,2,4-triazole, (2R-cis)- | HCID 10131191 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 15481710 | HCID 15481710 | 24.4% |
Reaction Conditions
| Temperature | 120 °C |
|---|
Reaction Steps
A mixture of (2R,3S)-2-(2,4-difluorophenyl)-3-methyl-2-(1H-1,2,4-triazol-1-yl)methyloxirane IV (1.0 g, 4.0 mmol), ethyl piperazine-1-carboxylate (1.2 ml, 8 mmol) and potassium carbonate in DMF (5 ml) was heated at 120° C. for 18 h. After cooling the reaction mixture was poured onto crushed ice and extracted with ethyl acetate (3×30 ml). The combined extract was washed with water, brine, dried (MgSO4) and concentrated and the resulting product was purified on a column of silica gel (hexane/EtOAc, 1:1) to give the title compound as off-white solid (400 mg, 24%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06153616 |
| Source dataset | uspto-grants-2000_11 |
| ORD ID | ord-2158ad69b13d406d9412a125a9482271 |
| Source note | uspto-grants-2000_11 |