Water → 3-(6-Isopropyl-pyridin-3-ylmethyl)-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine

HRID 1952019Notes

Reaction equation

Cl[C:2]1[N:7]=[CH:6][C:5]([CH2:8][C:9]2[C:17]3[C:12](=[N:13][CH:14]=[CH:15][CH:16]=3)[N:11]([Si:18]([CH:25]([CH3:27])[CH3:26])([CH:22]([CH3:24])[CH3:23])[CH:19]([CH3:21])[CH3:20])[CH:10]=2)=[CH:4][CH:3]=1.[CH:28]([Mg]Cl)([CH3:30])[CH3:29].O>O1CCCC1.Cl[Pd]Cl.C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[CH:28]([C:2]1[N:7]=[CH:6][C:5]([CH2:8][C:9]2[C:17]3[C:12](=[N:13][CH:14]=[CH:15][CH:16]=3)[N:11]([Si:18]([CH:25]([CH3:27])[CH3:26])([CH:22]([CH3:24])[CH3:23])[CH:19]([CH3:20])[CH3:21])[CH:10]=2)=[CH:4][CH:3]=1)([CH3:30])[CH3:29]

Participants

Conditions

Temperature: 20 °C

Procedure

To 3-(6-Chloro-pyridin-3-ylmethyl)-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine (6, 54.0 mg, 0.000135 mol, prepared as described in Example 2) in Tetrahydrofuran (4.0 mL) were added [1,1′-bis(diphenylphosphino)ferrocene]-dichloropalladium(II) (23.0 mg) and Isopropylmagnesium Chloride (0.15 mL, 2.0 M in Tetrahydrofuran). The reaction was stirred at 20° C. under an atmosphere of Nitrogen for 3 hours. The reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate, concentrated and purified by silica gel column chromatography eluting with 10% methanol in dichloromethane to give compound 39 (38 mg, 70.4%).

Workup

extractionextracted with ethyl acetate
washThe organic layer was washed with brine
dry with materialdried over sodium sulfate
concentrationconcentrated
custompurified by silica gel column chromatography
washeluting with 10% methanol in dichloromethane

Sources & evidence

ORD record: ord-db5862a8457542b28a97415f1a6af42b
Source dataset: uspto-grants-2013_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08404700B2

Reaction notes

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