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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 270859Generated: October 25, 2026

Dimethylformamide → 1-[4-(4-Fluoro-phenyl)-piperazin-1-yl]-2-(3-heptafluoropropyl-5-methyl-4-nitro-pyrazol-1-yl)-ethanone

https://huagongshe.com/reaction/270859

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant1-(Chloroacetyl)-4-(4-fluorophenyl)piperazineHCID 1848511—
Reactant3-(Heptafluoropropyl)-5-methyl-4-nitro-1H-pyrazoleHCID 2774944—
SolventEthyl acetate hexaneHCID 21226206—
Product1-[4-(4-Fluoro-phenyl)-piperazin-1-yl]-2-(3-heptafluoropropyl-5-methyl-4-nitro-pyrazol-1-yl)-ethanoneHCID 21071001—

Reaction Steps

Protocol T was followed using 3-Heptafluoropropyl-5-methyl-4-nitro-1H-pyrazole, K2CO3, 2-Chloro-1-[4-(4-fluoro-phenyl)-piperazin-1-yl]-ethanone and DMF. Column chromatography using a solvent mixture (hexane/ethyl acetate=3/7) afforded the title compound as oil. 1H NMR (400 MHz, CDCl3): 6.9-7.0 (m, 2H), 6.8-6.9 (m, 2H), 5.06-5.14 (d, 2H), 3.6-3.8 (m, 4H), 3.06-3.18 (m, 4H), 2.56-2.66 (d, 3H). 13C NMR (400 MHz, CDCl3): 160, 146.2, 144, 119.2, 118, 52.2, 50.8, 50.4, 46, 42.2, 12.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449576B1
Source datasetuspto-grants-2008_11
ORD IDord-c5d287ebb6fb4e39a962a58fb615b619
Source noteuspto-grants-2008_11