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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 270909Generated: October 29, 2026

Dimethylformamide → 2-(4-Chloro-3-n-propyl-5-trifluoromethyl-pyrazol-1-yl)-1-[4-(4-chloro-3-methoxy-phenyl)-piperazin-1-yl]-ethanone

https://huagongshe.com/reaction/270909

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant1-[4-(4-Chloro-3-methoxyphenyl)-piperazine-1-yl]-ethanoneHCID 21070991—
ReactantHCID 178440441HCID 178440441—
SolventEthyl acetate hexaneHCID 21226206—
Product2-(4-Chloro-3-n-propyl-5-trifluoromethyl-pyrazol-1-yl)-1-[4-(4-chloro-3-methoxy-phenyl)-piperazin-1-yl]-ethanoneHCID 21071060—

Reaction Steps

Protocol T was followed using 4-Chloro-3-n-propyl-5-trifluoromethyl-1-H-pyrazol, K2CO3, 1-[4-(4-Chloro-3-methoxyphenyl)-piperazine-1-yl]-ethanone and DMF. Column chromatography using a solvent mixture (hexane/ethyl acetate=3/7, Rf=0.78) afforded the title compound as white solid. 1H NMR (400 MHz, CDCl3); 7.22-7.24 (d, 2H), 6.42-6.48 (m, 2H), 5.7 (s, 2H), 3.8 (s, 3H), 3.72-3.78 (m, 4H), 3.22-3.42 (m, 4H), 2.66-2.72 (t, 2H), 1.58-1.68 (m, 2H), 0.98-1.02 (t, 3H). 13C NMR (400 MHz, CDCl3): 164, 154.8, 150.5, 130, 109.8, 102.2, 56.4, 52.8, 50, 49.8, 45.2, 42.6, 26, 21.8, 14.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449576B1
Source datasetuspto-grants-2008_11
ORD IDord-b1fc1761bb6b4381a809ea00e39f60e9
Source noteuspto-grants-2008_11