Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Benzyl chloroformate | HCID 10387 | — |
| Reactant | 1-(4-Nitrophenyl)piperazine | HCID 80447 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 57489618 | HCID 57489618 | 97.9% |
Reaction Steps
To a mixture of 1-(4-nitrophenyl)piperazine (5 g, 24.13 mmol) and Et3N (5.04 mL, 36.2 mmol) in THF (20 mL) was added benzyl chloroformate (3.79 mL, 26.5 mmol) portion-wise at 0° C. The reaction mixture was stirred at 0° C. for 1 h and then at rt for 2 h. The reaction mixture was diluted with CH2Cl2, washed with satd NaHCO3 and water, and concentrated to give 8.06 g of benzyl 4-(4-nitrophenyl)piperazine-1-carboxylate as yellow solid. LCMS: (M+H)+=342.15.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08586751B2 |
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| Source dataset | uspto-grants-2013_11 |
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| ORD ID | ord-173ea060183c454a89699c323ff42c37 |
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| Source note | uspto-grants-2013_11 |
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