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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 490189Generated: October 30, 2026

Sodium Carbonate → N-(2,4-Difluorophenyl)-4-(2-pyridinyl)-1-piperazineacetamide

https://huagongshe.com/reaction/490189

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant1-(2-Pyridyl)piperazineHCID 94459—
Reactant2-chloro-N-(2,4-difluorophenyl)acetamideHCID 735854—
SolventN,N-Dimethylformamide--water (1/1)HCID 21962138—
ProductN-(2,4-Difluorophenyl)-4-(2-pyridinyl)-1-piperazineacetamideHCID 354748774.8%

Reaction Steps

A mixture of 1-pyridin-2-ylpiperazine (24 mg, 0.15 mmol, Aldrich), N-(2,4-difluorophenyl)-2-chloroacetamide (41 mg, 0.20 mmol, Maybridge) and sodium carbonate (50 mg) in N,N-dimethylformamide/water (2:1, 2 mL) was shaken at room temperature for 18 hours. The resulting mixture was decanted, concentrated under reduced pressure and the residue purified by preparative HPLC to provide 37.3 mg (74.8%) of the desired product. 1H NMR (500 MHz, DMSO-d6) δ 2.52 (t, J=4 Hz, 4H), 3.23 (s, 2H), 3.58 (t, J=4 Hz, 4H), 6.63 (t, J=5 Hz, 1H), 6.83 (d, J=6 Hz, 1H), 7.08 (t, J=6 Hz, 1H), 7.38 (t, J=6 Hz, 1H), 7.92 (m, 1H), 8.12 (d, J=5 Hz, 1H), 9.60 (s, 1H); MS (ESI/APCI+) m/e 333 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07528134B2
Source datasetuspto-grants-2009_05
ORD IDord-9ff9188d66514f11a8dace1ce1cdd0ad
Source noteuspto-grants-2009_05