Potassium Carbonate → 5-Chloro-3-(4-(4-(trifluoromethyl)pyridin-2-yloxy)phenyl)pyridin-2-amine

HRID 2035810Notes

Reaction equation

C(=O)([O-])[O-].[K+].[K+].F[C:8]1[CH:13]=[C:12]([C:14]([F:17])([F:16])[F:15])[CH:11]=[CH:10][N:9]=1.[NH2:18][C:19]1[C:24]([C:25]2[CH:30]=[CH:29][C:28]([OH:31])=[CH:27][CH:26]=2)=[CH:23][C:22]([Cl:32])=[CH:21][N:20]=1.C([O-])(O)=O.[Na+]>CS(C)=O>[Cl:32][C:22]1[CH:23]=[C:24]([C:25]2[CH:26]=[CH:27][C:28]([O:31][C:8]3[CH:13]=[C:12]([C:14]([F:17])([F:16])[F:15])[CH:11]=[CH:10][N:9]=3)=[CH:29][CH:30]=2)[C:19]([NH2:18])=[N:20][CH:21]=1

Participants

Conditions

Temperature: 120 °C

Procedure

A mixture of potassium carbonate (376 mg), 2-fluoro-4-(trifluoromethyl)pyridine (269 mg) and 4-(2-amino-5-chloropyridin-3-yl)phenol (300 mg) in DMSO (5 ml) was stirred at 120° C. for 2 hr. The mixture was neutralized with sat. NaHCO3 aq. and extracted with EtOAc. The organic layer was separated, washed with 1N NaOH aq. and brine, dried over anhydrous magnesium sulfate and concentrated in vacuo. The residue was purified by column chromatography (NH silica gel, eluted with EtOAc in hexane) to give the title compound (484 mg) as a pale yellow solid.

Workup

extractionextracted with EtOAc
customThe organic layer was separated
washwashed with 1N NaOH aq. and brine
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated in vacuo
customThe residue was purified by column chromatography (NH silica gel, eluted with EtOAc in hexane)

Sources & evidence

ORD record: ord-c122c95a23bf4e2e8da8f9793bfc28d6
Source dataset: uspto-grants-2013_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08575154B2

Reaction notes

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