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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2426024Generated: November 2, 2026

Piperazine → HCID 11560747, compound

https://huagongshe.com/reaction/2426024

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 58707282HCID 58707282—
SolventAcetonitrileHCID 6342—
ProductHCID 11560747HCID 1156074718.5%

Reaction Steps

N-(5-Fluoro-2-(methylsulfonyl)phenyl)naphthalen-1-amine (0.56 g, 1.7 mmol), piperazine (0.46 g, 5.3 mmol), N,N-diisopropylethylamine (0.89 g, 6.8 mmol) were stirred at 80° C. in dry acetonitrile (5 mL) for 48 h. The solvent was evaporated and the residue was dissolved in dichloromethane and washed with water. The dichloromethane was evaporated and the crude compound was purified by silica chromatography using 10% methanol in dichloromethane to afford the title compound (120 mg, 18% yield). 1H NMR (400 MHz, CDCl3): δ 8.10 (s, 1H), 7.89 (d, 1H), 7.83 (d, 1H), 7.66 (d, 1H), 7.62 (m, 1H), 7.39 (m, 4H), 6.35 (d, 1H), 6.26 (s, 1H), 3.09 (s, 3H), 2.98 (m, 4H), 2.79 (m, 4H); MS (ESI) m/z: Calculated for C21H24N3O2S: 382.2; Observed: 382.4 (M+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07968538B2
Source datasetuspto-grants-2011_06
ORD IDord-00feb08d2d6f467e8a27c19e7860589f
Source noteuspto-grants-2011_06