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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1749859Generated: November 2, 2026

Piperidine → HCID 178516763, compound

https://huagongshe.com/reaction/1749859

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
ReactantHCID 71278572HCID 71278572—
ReactantHCID 178520025HCID 178520025—
SolventMethanolHCID 887—
ProductHCID 178516763HCID 17851676362.5%

Reaction Conditions

Temperature60 °C

Reaction Steps

A solution of 4-[(6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl]piperazin-2-one (0.131 g, 0.500 mmol) in methanol (2 mL) was added with indazole-3-carbaldehyde (0.0731 g, 0.500 mmol), and piperidine (0.00426 g, 0.0500 mmol) at room temperature, and the mixture was stirred at 60° C. for 2 hours. The reaction mixture was cooled to room temperature, then added with methanol (6 mL), suspended in methanol and thereby washed, and the solid was collected by filtration to obtain (Z)-4-({2-[(1H-indazol-3-yl)methylene]-6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl}methyl)piperazin-2-one (0.122 g, 62%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156827B2
Source datasetuspto-grants-2015_10
ORD IDord-67d24b208aa248be91288f60cd996998
Source noteuspto-grants-2015_10