HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → tert-Butyl 4-(4-aminophenyl)piperazine-1-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1-Boc-4-(4-Nitrophenyl)piperazine | HCID 3380696 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | tert-Butyl 4-(4-aminophenyl)piperazine-1-carboxylate | HCID 11011301 | 72% |
Reaction Steps
1 equiv of 43 dissolved in methanol (anhydrous) and 10% of 10% Pd/C was added under a hydrogen atmosphere and allowed to stir overnight at room-temp. Reaction was filtered through a pad of celite and concentrated to give a blue/purple oil. The oil was brought up in DCM acidified using 1 M HCl and organic wash was removed. The aqueous was neutralized with sat'd sodium bicarbonate and washed 3 times with DCM, dried with sodium sulfate, filtered and concentrated and resulted in a pale red oil, 72% yield. MS (ES) 277.8 [MH+].
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07645754B2 |
| Source dataset | uspto-grants-2010_01 |
| ORD ID | ord-77cb72ad2ba744e4ba8824cfb4e5d00d |
| Source note | uspto-grants-2010_01 |