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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 64060Generated: October 29, 2026

Ethyl bromoacetate → 1-Piperazineacetic acid, 4-methyl-, ethyl ester

https://huagongshe.com/reaction/64060

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromoacetateHCID 7748—
ReactantPotassium CarbonateHCID 11430—
Reactant1-MethylpiperazineHCID 53167—
SolventDimethylformamideHCID 6228—
Product1-Piperazineacetic acid, 4-methyl-, ethyl esterHCID 20693976.4%

Reaction Steps

To a solution of 1-methylpiperazine (1 g, 8.771 mmol, 1.0 eq) in DMF were added K2CO3 (265 m g, 21.927 mmol, 2.5 eq) and ethyl 2-bromoacetate (167 mg, 13.15 mmol, 1.5 eq). The mixture was stirred at RT for 16 h and quenched and extracted as in Intermediate Example 5(a). The solvent was distilled off to afford the product in 76.4% yield. (1.3 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09447091B2
Source datasetuspto-grants-2016_09
ORD IDord-d5fa8216baf24c95ae21cbdbec2565c0
Source noteuspto-grants-2016_09