Potassium Carbonate → HCID 58042274, compound

HRID 1619644Notes

Reaction equation

[CH3:1][N:2]1[C:6]([C:7]2[CH:8]=[C:9]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH:10]=[CH:11][C:12]=2[OH:13])=[CH:5][CH:4]=[N:3]1.C(=O)([O-])[O-].[K+].[K+].[F:26][C:27]1[CH:28]=[C:29]([N+:34]([O-:36])=[O:35])[CH:30]=[CH:31][C:32]=1F>CN(C)C=O.C(OCC)(=O)C>[F:26][C:27]1[CH:28]=[C:29]([N+:34]([O-:36])=[O:35])[CH:30]=[CH:31][C:32]=1[O:13][C:12]1[CH:11]=[CH:10][C:9]([C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=2)=[CH:8][C:7]=1[C:6]1[N:2]([CH3:1])[N:3]=[CH:4][CH:5]=1

Participants

Conditions

Temperature: 0 °C

Procedure

To a stirred solution of 3-(1-Methyl-1H-pyrazol-5-yl)biphenyl-4-ol (Preparation 28, 600 mg, 2.39 mmol) in N,N-dimethylformamide (6 mL) at 0° C. was added potassium carbonate (332 mg, 2.39 mmol). The mixture was stirred for 30 minutes at 0° C. 3,4-Difluoronitrobenzene (318 mg, 1.99 mmol) was added drop wise to the reaction mixture and allowed to stir at room temperature for 16 hours. The reaction mixture was diluted with ethyl acetate (20 mL). The organic layer was washed sequentially with water (3×10 mL) and brine (1×10 ml), then dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to afford the title compound (870 mg, quantitative). This material was used without purification in the next step.

Workup

stirringto stir at room temperature for 16 hours
washThe organic layer was washed sequentially with water (3×10 mL) and brine (1×10 ml)
dry with materialdried over anhydrous sodium sulfate
filtrationfiltered
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-74dfd347700d4313b4ac45eec3aee8a1
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08772293B2

Reaction notes

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