Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 390509Generated: November 1, 2026

Ammonia → 3-(5-Chloropyridin-3-yl)-5-(3,4-difluorophenyl)isoxazole

https://huagongshe.com/reaction/390509

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant3,4-DifluorophenylacetyleneHCID 13878454—
Reactant5-Chloro-N-hydroxynicotinimidoyl chlorideHCID 86636849—
Product3-(5-Chloropyridin-3-yl)-5-(3,4-difluorophenyl)isoxazoleHCID 44545544—

Reaction Steps

The titled compound was prepared according to Method CB using the product of Example 69B (57 mg, 0.3 mmol) and 4-ethynyl-1,2-difluorobenzene (Apollo, 41 mg, 0.3 mmol). 1H NMR (300 MHz, DMSO-d6) δ 7.63-7.81 (m, 2H), 7.82 (s, 1H), 8.02 (ddd, J=11.4, 7.6, 2.0 Hz, 1H), 8.41 (t, J=2.0 Hz, 1H), 8.81 (d, J=2.4 Hz, 1H), 9.06 (d, J=2.0 Hz, 1H) ppm; MS (DCI/NH3) m/z 291 (M+H)+, 293 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08383658B2
Source datasetuspto-grants-2013_02
ORD IDord-7b3261f6343e4177843d083ecddaf8ca
Source noteuspto-grants-2013_02