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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1372098Generated: October 25, 2026

Dimethylformamide → 2-(3-Chloro-indazol-1-yl)-1-[4-(4-fluoro-phenyl)-piperazin-1-yl]-ethanone

https://huagongshe.com/reaction/1372098

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant3-Chloro-1H-indazoleHCID 95894—
Reactant1-(Chloroacetyl)-4-(4-fluorophenyl)piperazineHCID 1848511—
SolventEthyl acetate hexaneHCID 21226206—
Product2-(3-Chloro-indazol-1-yl)-1-[4-(4-fluoro-phenyl)-piperazin-1-yl]-ethanoneHCID 21071050—

Reaction Steps

Protocol T was followed using 3-Chloro-1H-indazole, K2CO3, 2-Chloro-1-[4-(4-fluoro-phenyl)-piperazin-1-yl]-ethanone and DMF. Column chromatography using a solvent mixture (hexane/ethyl acetate=1/4) afforded the title compound as a white solid. 1H NMR (400 MHz, CDCl3) 7.64–7.70 (m, 1H), 7.38–7.48 (m, 2H), 7.18–7.26 (m, 2H), 6.94–7.0 (m, 2H), 6.82–6.88 (dd, 2H), 5.2 (s, 2H), 3.72–3.82 (m, 4H), 3.02–3.08 (m, 4H). 13C NMR (400 MHz, CDCl3): 165, 158.2, 142.8, 134.8, 128.8, 128.4, 122, 121.6, 118.8, 118.6, 115.4, 115.2, 110.6, 110.0, 51.8, 50.6, 50.2, 45.2, 42.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07157464B2
Source datasetuspto-grants-2007_01
ORD IDord-bdc36a95baf74dc0b1b7cce5a8402479
Source noteuspto-grants-2007_01