Ammonia → 3-(5-Chloropyridin-3-yl)-5-(2,4-difluorophenyl)isoxazole

HRID 390503Notes

Reaction equation

HRID 390503 reaction equation
[Cl:1][C:2]1[CH:3]=[N:4][CH:5]=[C:6]([CH:11]=1)[C:7](Cl)=[N:8][OH:9].[C:12]([C:14]1[CH:19]=[CH:18][C:17]([F:20])=[CH:16][C:15]=1[F:21])#[CH:13].N>>[Cl:1][C:2]1[CH:11]=[C:6]([C:7]2[CH:13]=[C:12]([C:14]3[CH:19]=[CH:18][C:17]([F:20])=[CH:16][C:15]=3[F:21])[O:9][N:8]=2)[CH:5]=[N:4][CH:3]=1

Participants

4

Reactant 3

HCID 222AmmoniaHCID 50638201-Ethynyl-2,4-difluorobenzeneHCID 866368495-Chloro-N-hydroxynicotinimidoyl chloride

Product 1

HCID 445455383-(5-Chloropyridin-3-yl)-5-(2,4-difluorophenyl)isoxazole

Procedure

The titled compound was prepared according to Method CB using the product of Example 69B (57 mg, 0.3 mmol) and 1-ethynyl-2,4-difluorobenzene (Aldrich, 41 mg, 0.3 mmol). 1H NMR (300 MHz, DMSO-d6) δ 7.30-7.43 (m, 1H), 7.61 (ddd, J=11.4, 9.2, 2.8 Hz, 1H), 7.68 (d, J=3.2 Hz, 1H), 8.07 (td, J=8.5, 6.3 Hz, 1H), 8.54 (t, J=2.0 Hz, 1H), 8.80 (d, J=2.4 Hz, 1H), 9.15 (d, J=2.0 Hz, 1H) ppm; MS (DCI/NH3) m/z 293 (M+H)+, 295 (M+H)+.

Sources & evidence

ORD record
ord-33344dc0e1ad4d50b572892fce528340
Source dataset
uspto-grants-2013_02
Patent number
US08383658B2

Reaction notes

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