Potassium Carbonate → HCID 10287441, compound

HRID 1866936Notes

Reaction equation

[Br:1][C:2]1[C:3](=[O:19])[NH:4][C:5](C)=[CH:6][C:7]=1[O:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13](F)=[CH:12][C:11]=1F.Br[CH2:21][C:22]1[CH:27]=[CH:26][C:25]([C:28]#[N:29])=[CH:24][CH:23]=1.C([O-])([O-])=O.[K+].[K+]>CN(C)C=O>[CH2:9]([O:8][C:7]1[CH:6]=[CH:5][N:4]([CH2:21][C:22]2[CH:27]=[CH:26][C:25]([C:28]#[N:29])=[CH:24][CH:23]=2)[C:3](=[O:19])[C:2]=1[Br:1])[C:10]1[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=1

Participants

Conditions

Temperature: 80 °C

Procedure

3-bromo-4-[(2,4-difluorobenzyl)oxy]-6-methylpyridin-2(1H)-one (1.0 g, 3.6 mmol) was dissolved in N,N-dimethylformamide (5 mL). α-Bromo-p-tolunitrile (0.85 g, 4.3 mmol) was added followed by K2CO3 (0.59 g, 4.3 mmol). The resulting mixture was heated to 80° C. for 16 h. The reaction was concentrated to an oil that was partitioned between water and ethyl acetate and extracted with ethyl acetate (3×100 ml). The organic extracts were combined, washed with brine, dried over Na2SO4, and filtered. The filtrate was concentrated to an oil, and purified by chromatography (silica gel, hexane/ethyl acetate) to yield a white solid (0.65 g, 46%). 1H NMR (400 MHz, CDCl3) δ 7.62 (d, J=8.4 Hz, 2H), 7.41-7.31 (m, 7H), 7.23 (d, J=7.6 Hz, 1H), 6.11 (d, J=8.0 Hz, 1H), 5.24 (s, 2H), 5.18 (s, 2H). ES HRMS m/z 395.0404 (M+H C20H15BrN2O2 requires 395.0390).

Workup

concentrationThe reaction was concentrated to an oil that
customwas partitioned between water and ethyl acetate
extractionextracted with ethyl acetate (3×100 ml)
washwashed with brine
dry with materialdried over Na2SO4
filtrationfiltered
concentrationThe filtrate was concentrated to an oil
custompurified by chromatography (silica gel, hexane/ethyl acetate)

Sources & evidence

ORD record: ord-1657dd4c082c4a0796ac41e4763d91d9
Source dataset: uspto-grants-2009_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07629363B2

Reaction notes

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