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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2055218Generated: November 2, 2026

2-Chloroacetophenone → 1-Phenyl-2-(piperazin-1-yl)ethan-1-one--hydrogen chloride (1/2)

https://huagongshe.com/reaction/2055218

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-ChloroacetophenoneHCID 10757—
ReactantPotassium CarbonateHCID 11430—
Reactant1-PiperazinecarboxaldehydeHCID 82191—
SolventAcetoneHCID 180—
Product1-Phenyl-2-(piperazin-1-yl)ethan-1-one--hydrogen chloride (1/2)HCID 2308051295%

Reaction Steps

A mixture of N-formyl piperazine 35.5 g (310 mmol), 2-chloro-1-phenylethanone (57.6 g, 372 mmol) and anhydrous K2CO3 (64.3 g, 465 mmol) in 320 ml of acetone was treated according to general preparation 1 to give 49 g of N-phenacyl piperazine dihydrochloride, yield 57%, mp 246-8° C. (dec). M+ 204.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07332495B2
Source datasetuspto-grants-2008_02
ORD IDord-728ed3dc421d407489c360614490d115
Source noteuspto-grants-2008_02