HuagongsheHuagongshe Chemistry Print Report · For research reference only
Trifluoroacetic acid → Trifluoroacetic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Trifluoroacetic acid | HCID 6422 | — |
| Reactant | tert-Butyl 4-ethyl-3-oxopiperazine-1-carboxylate | HCID 18783917 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | Trifluoroacetic acid | HCID 6422 | — |
| Product | 1-Ethylpiperazin-2-one | HCID 9877366 | — |
Reaction Steps
1-tert-Butoxycarbonyl-4-ethyl-3-oxopiperazine (5.9 g) was dissolved in dichloromethane (100 ml), cooled in an ice-bath, and trifluoroacetic acid (145 ml) added. The mixture was stirred at the same temperature for 2 hours. Solvent was evaporated to yield 1-ethyl-2-oxopiperazine product as a salt with 3 moles of trifluoroacetic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06069145 |
| Source dataset | uspto-grants-2000_05 |
| ORD ID | ord-cf90d9785b894a1ba8a2e5b448e8ef53 |
| Source note | uspto-grants-2000_05 |