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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1670778Generated: October 31, 2026

Water → HCID 11461905, compound

https://huagongshe.com/reaction/1670778

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDimethylformamideHCID 6228—
Reactant1-(4-Fluorophenyl)piperazineHCID 75260—
ReactantHCID 12262769HCID 12262769—
ProductHCID 11461905HCID 1146190518%

Reaction Conditions

Temperature100 °C

Reaction Steps

1H-Indazole-3-carbonylazide (synthesized according to the method described in Tetrahedron, 32, 4, 1976, 493-497, 200 mg) was dissolved in dimethylformamide (4 ml), and the mixture was stirred with heating at 100° C. for 30 min. 1-(4-Fluorophenyl)piperazine (Aldrich Co., 211 mg) was dissolved in dimethylformamide (1 ml) and added thereto, and the mixture was stirred with heating at 100° C. for 1 hr. After allowing to cool, water was added to the reaction mixture and the precipitated solid was collected by filtration and dried. The solid was washed in a suspension state with methanol to give 4-(4-fluorophenyl)-1-piperazinecarboxylic acid (1H-indazol-3-yl)amide (64 mg, yield 18%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07994196B2
Source datasetuspto-grants-2011_08
ORD IDord-e0aad95b2982452a93ff04782a8fc4f1
Source noteuspto-grants-2011_08