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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 968272Generated: October 27, 2026

Triethylamine → HCID 22288616, compound

https://huagongshe.com/reaction/968272

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant2-Ethylpropanedioyl dichlorideHCID 10920924—
Reactant1-[(3,4-Dichlorophenyl)methyl]piperidin-4-amineHCID 10978156—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 22288616HCID 22288616—

Reaction Steps

A solution of 1-(3,4-dichlorobenzyl)-piperidin-4-ylamine (2.5 g) and triethylamine (1.50 ml) in dichloromethane (100 ml) stirring at ambient temperature was treated with ethylmalonyl chloride (1.35 ml). After stirring for 16 hours, the reaction mixture was washed with brine, the organic layer was dried (MgSO4), and evaporated to leave a white solid. This solid was suspended in ethanol (100 ml), treated with hydrazine hydrate (5 ml) and the resulting mixture was stirred at reflux for 16 hours and then allowed to cool. Water (100 ml) was added to the reaction mixture and the ethanol was evaporated. The residue was then extracted with dichloromethane (3×100 ml), the combined organics were dried (MgSO4), evaporated. The resultant solid was triturated with diethyl ether to give the subtitle compound as a white solid. (2.27 g)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06958350B2
Source datasetuspto-grants-2005_10
ORD IDord-71669d1419c841128a3e6bae8286288d
Source noteuspto-grants-2005_10