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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 656448Generated: November 2, 2026

Piperidine → HCID 67187268, compound

https://huagongshe.com/reaction/656448

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant5,6-Difluoro-1-indanoneHCID 11768944—
SolventPyridineHCID 1049—
ProductHCID 67187268HCID 67187268—

Reaction Steps

5,6-difluoro-indan-1-one (2.49 g, 14.8 mmol) and piperidine (4.4 ml, 3.78 g, 44.4 mmol) were dissolved in pyridine (10 ml) and heated to reflux for 16 hours. The reaction was cooled, and the solvent removed under vacuum. The residue was taken in ethyl ether, washed with 1N aqueous sodium hydroxide and water, dried with magnesium sulfate, and the solvent removed under vacuum to give the desired product as 2.97 g of a black solid that was used without further purification. 1H NMR (300 MHz, CDCl3) 7.32 (d, 1H), 6.88 (d, 1H), 3.19 (m, 4H), 3.03 (m, 2H), 2.66 (m, 2H), 1.73 (m, 4H), 1.62 (m, 2H). MS (CSI) m/e 234 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08071762B2
Source datasetuspto-grants-2011_12
ORD IDord-42381ca00ac8449380166c038135e996
Source noteuspto-grants-2011_12