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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 901884Generated: October 31, 2026

Ethyl Acetate → HCID 58824121, compound

https://huagongshe.com/reaction/901884

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantHydrazineHCID 9321—
ReactantHCID 58824138HCID 58824138—
CatalystNickelHCID 935—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 58824121HCID 5882412188.5%

Reaction Steps

To 370 mg (1.02 mmol) of 4-(2-cyano-5-methoxy-3-nitro-phenyl)-piperazine-1-carboxylic acid tert-butyl ester dissolved in 5 mL ethanol and 5 mL ethyl acetate was added a pipet of Raney nickel slurry in water followed by 64 μL (2 eq., 2.04 mmol) hydrazine. The mixture was stirred 30 minutes to completion, filtered through Celite and concentrated under reduced pressure to provide 300 mg of crude 4-(3-amino-2-cyano-5-methoxy-phenyl)-piperazine-1-carboxylic acid tert-butyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07365063B2
Source datasetuspto-grants-2008_04
ORD IDord-c67b7784486f40d687cd3c3a765da9bf
Source noteuspto-grants-2008_04