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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1861988Generated: November 4, 2026

Ethyl Acetate → HCID 86592746, compound

https://huagongshe.com/reaction/1861988

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantSodium hydrideHCID 24758—
ReactantTert-butyl 3-oxopiperazine-1-carboxylateHCID 3157178—
ReactantPhenol, 3-(bromomethyl)-4-chloro-, 1-methanesulfonateHCID 18621194—
SolventDimethylformamideHCID 6228—
ProductHCID 86592746HCID 86592746—

Reaction Steps

To a solution of piperazin-3-one-1-carboxylic acid tert-butyl ester (7.10 g, 35.3 mmol) in dry DMF (200 mL) at 0° C. was added sodium hydride (60% dispersion in mineral oil, 2.10 g, 53.0 mmol). The reaction mixture was stirred for 15 min, and then a solution of the benzylbromide from Step B (10.0 g, 35.3 mmol) in DMF (50 mL) was added dropwise. The reaction mixture was allowed to warm to room temperature overnight. The reaction was poured into EtOAc (300 ml), and washed with H2O (3×50 ml). The organic layer was dried with magnesium sulfate, filtered, and concentrated in vacuo. The crude product was purified by column chromatography (60% ethyl acetate/hexane) to provide the title compound as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06534506B2
Source datasetuspto-grants-2003_03
ORD IDord-8f8ccf9ec9424b6cac89107b2c5e324c
Source noteuspto-grants-2003_03