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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2064152Generated: October 30, 2026

Water → 1,1-Dimethylethyl 4-[(5-methoxy-4-chloro-2-nitrophenyl)amino]-piperidinecarboxylate

https://huagongshe.com/reaction/2064152

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
Reactant4-Amino-1-Boc-piperidineHCID 1268291—
Reactant1-Chloro-4-fluoro-2-methoxy-5-nitrobenzeneHCID 59850196—
SolventDimethylformamideHCID 6228—
SolventDiisopropylethylamineHCID 81531—
Product1,1-Dimethylethyl 4-[(5-methoxy-4-chloro-2-nitrophenyl)amino]-piperidinecarboxylateHCID 59850143—

Reaction Steps

2-Chloro-4-nitro-5-fluoroanisole (D42) (300 mg) was dissolved in dry dimethylformamide (3 ml) and diisopropylethylamine (0.3 ml), and 1,1-dimethylethyl 4-amino-1-piperidinecarboxylate (330 mg) were added at room temperature. The mixture was stirred for 3 h, then water and ethyl acetate added. The organic layer was dried over MgSO4, filtered and evaporated, and the residue was crystallised from diethyl ether to afford the title compound, 400 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08288412B2
Source datasetuspto-grants-2012_10
ORD IDord-8c1e4dff41b747eba27e6bc4dfa2a307
Source noteuspto-grants-2012_10