Potassium Carbonate → HCID 22051036, compound

HRID 1866942Notes

Reaction equation

[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][NH:12][C:11](=[O:15])[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].F[C:23]1[CH:30]=[CH:29][C:26]([C:27]#[N:28])=[CH:25][CH:24]=1>CS(C)=O.O>[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][N:12]([C:23]2[CH:30]=[CH:29][C:26]([C:27]#[N:28])=[CH:25][CH:24]=2)[C:11](=[O:15])[CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 100 °C

Procedure

4-benzyloxy-2(1H)-pyridone (50.0 g, 248.47 mmol) was dissolved in dimethyl sulfoxide (300 mL). Potassium carbonate (68.68 g, 496.94 mmol) was added, followed by 4-fluorobenzonitrile (31.60 g, 260.89 mmol). The reaction was stirred at 100° C. for 20 hours. After cooling to room temperature the reaction was diluted with H2O (600 mL) and the solids were collected by filtration washing with diethyl ether. The solids were then washed with hot methanol to provide a tan solid (55.6 g, 74%). 1H NMR (300 MHz, CDCl3) δ 7.79 (d, J=8.3 Hz, 2H), 7.54 (d, J=8.5 Hz, 2H), 7.44-7.41 (m, 5H), 7.22 (d, J=13.3, 1H), 6.13 (dd, J=2.6, 7.7 Hz, 1H), 6.06 (d, J=2.6 Hz, 1H), 5.07 (s, 2H).

Workup

temperatureAfter cooling to room temperature the reaction
filtrationthe solids were collected by filtration
washwashing with diethyl ether
washThe solids were then washed with hot methanol

Sources & evidence

ORD record: ord-8f2e0069396e4db4b1babe232bd872bd
Source dataset: uspto-grants-2009_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07629363B2

Reaction notes

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