Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 718239Generated: October 29, 2026

1-Piperazinecarboxylic acid, ethyl ester → HCID 2986625, compound

https://huagongshe.com/reaction/718239

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Piperazinecarboxylic acid, ethyl esterHCID 8431—
Reactantm-Tolyl isocyanateHCID 69303—
SolventDichloromethaneHCID 6344—
ProductHCID 2986625HCID 298662587%

Reaction Steps

To a solution of ethyl piperazine-1-carboxylate (1.0 g, 6.32 mmol) in dichloromethane (30 ml) was added m-tolylisocyanate (0.90 mg, 6.95 mmol). The reaction mixture was stirred at room temperature for 2 hours. The mixture was diluted with dichloromethane and washed with water, brine and dried over Na2SO4. After removing the solvents, the residue was purified by chromatography on silica gel (CH2Cl2/MeOH 50:1) to yield the title compound as a white solid (1.6 g, 87%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09193741B2
Source datasetuspto-grants-2015_11
ORD IDord-0f3dd3cfeef0480fa52a0a9d5869c071
Source noteuspto-grants-2015_11