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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1749894Generated: October 31, 2026

Piperidine → HCID 178452320, compound

https://huagongshe.com/reaction/1749894

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
ReactantHCID 71278746HCID 71278746—
ReactantHCID 178520025HCID 178520025—
SolventMethanolHCID 887—
ProductHCID 178452320HCID 17845232043.5%

Reaction Conditions

Temperature60 °C

Reaction Steps

A solution of tert-butyl 4-[(3-oxo-6-(2-phenoxyethoxy)-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylate (0.0720 g, 0.154 mmol) in methanol (1 mL) was added with 1H-indazole-3-carboxaldehyde (0.0225 g, 0.154 mmol) and piperidine (0.00131 g, 0.0154 mmol), and the mixture was stirred at 60° C. for 3 hours. The reaction mixture was concentrated, and the resulting residue was purified by silica gel column chromatography (chloroform/methanol) to obtain tert-butyl (Z)-4-({2-[(1H-indazol-3-yl)methylene]-3-oxo-6-(2-phenoxyethoxy)-2,3-dihydrobenzofuran-7-yl}methyl)piperazine-1-carboxylate (0.0400 g, 43%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156827B2
Source datasetuspto-grants-2015_10
ORD IDord-8f55bae0075a46279aaa676535e4355c
Source noteuspto-grants-2015_10