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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2044066Generated: November 1, 2026

Triethylamine → HCID 57489618, compound

https://huagongshe.com/reaction/2044066

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantBenzyl chloroformateHCID 10387—
Reactant1-(4-Nitrophenyl)piperazineHCID 80447—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
ProductHCID 57489618HCID 5748961897.9%

Reaction Conditions

Temperature0 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08586751B2
Source datasetuspto-grants-2013_11
ORD IDord-173ea060183c454a89699c323ff42c37
Source noteuspto-grants-2013_11