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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1820827Generated: November 2, 2026

tert-Butyl piperazine-1-carboxylate → HCID 69038776, compound

https://huagongshe.com/reaction/1820827

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant3-Chloro-5-(trifluoromethyl)pyridazineHCID 59277297—
SolventEthyl AcetateHCID 8857—
SolventDimethylacetamideHCID 31374—
ProductHCID 69038776HCID 69038776100%

Reaction Conditions

Temperature100 °C

Reaction Steps

3-Chloro-5-trifluoromethyl-pyridazine (200 mg) was added to piperazine-1-carboxylic acid tert-butyl ester (231 mg) in dimethylacetamide (3 mL), and the reaction mixture was stirred at 100° C. for 3 hours. After such time, the reaction mixture was allowed to cool down to room temperature and diluted with ethyl acetate. The solid was filtered off and washed with ethyl acetate. The filtrate was then concentrated in vacuo and then purified by column chromatography (SiO2, Heptane/EtOAc) to yield the title compound as a white solid (364 mg). MS (m/e): 333.4 (M+H+, 100%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07605163B2
Source datasetuspto-grants-2009_10
ORD IDord-4b01918a6d614bcca7fed21ecd2f1887
Source noteuspto-grants-2009_10