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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 713769Generated: October 30, 2026

Ammonia → 5-(2,5-Difluorophenyl)-3-(pyridin-3-yl)-1,2,4-oxadiazole

https://huagongshe.com/reaction/713769

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant2,5-Difluorobenzoic acidHCID 76339—
ReactantN-HydroxynicotinimidamideHCID 308113—
Product5-(2,5-Difluorophenyl)-3-(pyridin-3-yl)-1,2,4-oxadiazoleHCID 67026303—

Reaction Steps

The title compound was prepared according to the procedure of Example 8 using N′-hydroxynicotinimidamide (Aldrich) and 2,5-difluorobenzoic acid (Aldrich). 1H NMR (300 MHz, CD3OD) δ 7.41-7.56 (m, 2H), 7.65 (ddd, J=7.9, 5.0, 1.0 Hz, 1H), 7.98-8.04 (m, 1H), 8.57 (dt, J=8.0, 1.9 Hz, 1H), 8.75 (dd, J=5.2, 1.6 Hz, 1H), 9.31 (dd, J=2.0, 0.8 Hz, 1H); MS (DCl/NH3) m/z 260 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09186407B2
Source datasetuspto-grants-2015_11
ORD IDord-3947b7f38528486281a99e51085f0e08
Source noteuspto-grants-2015_11