Potassium Phosphate, Tribasic → 4-(5-fluoro-2-methoxyphenyl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrrolo[2,3-b]pyridine-3-carbonitrile

HRID 1522007Notes

Reaction equation

Cl[C:2]1[CH:7]=[CH:6][N:5]=[C:4]2[N:8]([CH2:13][O:14][CH2:15][CH2:16][Si:17]([CH3:20])([CH3:19])[CH3:18])[CH:9]=[C:10]([C:11]#[N:12])[C:3]=12.[F:21][C:22]1[CH:23]=[CH:24][C:25]([O:31][CH3:32])=[C:26](B(O)O)[CH:27]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>O1CCCC1.O.[Cl-].[Na+].O>[F:21][C:22]1[CH:27]=[CH:26][C:25]([O:31][CH3:32])=[C:24]([C:2]2[CH:7]=[CH:6][N:5]=[C:4]3[N:8]([CH2:13][O:14][CH2:15][CH2:16][Si:17]([CH3:20])([CH3:19])[CH3:18])[CH:9]=[C:10]([C:11]#[N:12])[C:3]=23)[CH:23]=1

Participants

Conditions

Temperature: 60 °C

Procedure

A mixture of Example 248A (3.0 g, 9.78 mmol), (5-fluoro-2-methoxyphenyl)boronic acid (2.5 g, 14.6 mmol), phenylallylchloro(1,3-bis(diisopropylphenyl)-2-imidazol-2-yliden)palladium(II) (0.19 g, 0.29 mmol) and potassium phosphate (4.1 g, 19.6 mmol) in tetrahydrofuran (60 mL) and water (18 mL) was purged with nitrogen and heated at 60° C. for 3 hours. The mixture was treated with brine, extracted with ethyl acetate (three times) and the organic layer was dried over sodium sulfate. Filtration, concentration and purification by flash chromatography (Combi Flash Rf) (silica gel, 30% ethyl acetate in hexane) afforded the title compound. MS (ESI+) m/z 398 (M+H)+.

Workup

extractionextracted with ethyl acetate (three times)
dry with materialthe organic layer was dried over sodium sulfate
filtrationFiltration, concentration and purification by flash chromatography (Combi Flash Rf) (silica gel, 30% ethyl acetate in hexane)

Sources & evidence

ORD record: ord-790ec83c114f451bb7b948d8d9bf6a1e
Source dataset: uspto-grants-2015_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09073922B2

Reaction notes

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