Pyridine → 3-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]benzonitrile

HRID 40936Notes

Reaction equation

[NH:1]1[CH:5]=[C:4]([C:6]2[CH:11]=[CH:10][N:9]=[C:8]3[N:12]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[CH:13]=[CH:14][C:7]=23)[CH:3]=[N:2]1.[C:23]([C:25]1[CH:26]=[C:27](B(O)O)[CH:28]=[CH:29][CH:30]=1)#[N:24].CN(C=O)C.N1C=CC=CC=1>C(OCC)(=O)C.C([O-])(=O)C.C([O-])(=O)C.[Cu+2]>[CH3:20][Si:19]([CH3:22])([CH3:21])[CH2:18][CH2:17][O:16][CH2:15][N:12]1[C:8]2=[N:9][CH:10]=[CH:11][C:6]([C:4]3[CH:5]=[N:1][N:2]([C:29]4[CH:30]=[C:25]([CH:26]=[CH:27][CH:28]=4)[C:23]#[N:24])[CH:3]=3)=[C:7]2[CH:14]=[CH:13]1

Participants

Conditions

Temperature: 125 °C

Procedure

4-(1H-Pyrazol-4-yl)-1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridine (0.025 g, 0.000080 mol) and (3-cyanophenyl)boronic acid (0.023 g, 0.00016 mol) were combined in DMF (1.50 mL, 0.0194 mol). Then copper(II) diacetate (0.002 g, 0.00001 mol) and pyridine (0.019 mL, 0.00024 mol) were added. The reaction was heated in an, open tube to 125° C. for 40 minutes, allowed to cool to rt, taken up in ethyl acetate, and washed with water saturated with sodium carbonate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated to give 3-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]-benzonitrile (0.025 gm, 92%) as an oily residue, LC/MS (M+H)+: 316.

Workup

temperatureto cool to rt
washwashed with water saturated with sodium carbonate
washThe organic layer was washed with brine
dry with materialdried over magnesium sulfate
concentrationconcentrated

Sources & evidence

ORD record: ord-1804cd292f2844eab99a60b3df32520f
Source dataset: uspto-grants-2013_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08530485B2

Reaction notes

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