Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1372130Generated: November 3, 2026

Potassium Carbonate → HCID 21071010, compound

https://huagongshe.com/reaction/1372130

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant5-NitroindazoleHCID 21501—
Reactant1-(Chloroacetyl)-4-(4-fluorophenyl)piperazineHCID 1848511—
SolventDimethylformamideHCID 6228—
ProductHCID 21071010HCID 21071010—

Reaction Conditions

Temperature70 °C

Reaction Steps

2-Chloro-1-[4-(4-fluoro-phenyl)-piperazin-1-yl]-ethanone (0.834 g, 3.3 mmol) was taken in dry DMF (15 mL) and dry potassium carbonate (1.6 g, 11.6 mmol) was added to it and the reaction mixture stirred at room temperature for 1h under nitrogen. 5-Nitro-1H-indazole (0.5 g, 2.9 mmol) in DMF (2 mL) was then added to the mixture through a syringe. The reaction was heated at 70° C. for 14 h, cooled and then quenched with water and extracted with ethyl acetate. Drying of the organic layer with Na2SO4 followed by concentration afforded material that on purification on neutral alumina column (pet ether/ethyl acetate) gave title compound as a pale yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07157464B2
Source datasetuspto-grants-2007_01
ORD IDord-077f862e94e545848c573aa37e863089
Source noteuspto-grants-2007_01