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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 74310Generated: November 4, 2026

Water → N-(2-(piperidin-1-yl)ethyl)-4-(benzoxazol-2-yl)-2-nitroaniline

https://huagongshe.com/reaction/74310

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
ReactantN-(2-Aminoethyl)piperidineHCID 33944—
Reactant2-(4-Fluoro-3-nitrophenyl)benzoxazoleHCID 21990970—
SolventAcetonitrileHCID 6342—
ProductN-(2-(piperidin-1-yl)ethyl)-4-(benzoxazol-2-yl)-2-nitroanilineHCID 6749907994%

Reaction Steps

To a suspension of 2-(4-fluoro-3-nitrophenyl)benzoxazole (see Working Example 15-2) (200 mg, 0.775 mmol) in acetonitrile (5 mL) was added potassium carbonate (214 mg, 1.55 mmol) and 1-(2-aminoethyl)piperidine (119 mg, 0.93 mmol), and this was heated to reflux for 3 hours. After the reaction was complete, this was cooled to room temperature, water was added, and after the precipitated crystals were filtered and washed with water, they were dried to yield the title compound (266 mg, 94% yield) as yellow crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08829035B2
Source datasetuspto-grants-2014_09
ORD IDord-f4b24c7c65f141958ca493e872390e61
Source noteuspto-grants-2014_09