Sodium Carbonate → 2-(1-(3-methoxy-phenyl)-3-methyl-but-1-enyl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine

HRID 1515944Notes

Reaction equation

HRID 1515944 reaction equation
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[CH:17][CH:18]=[C:13]3[CH:12]=[C:11]2[C:19](OS(C2C=CC(C)=CC=2)(=O)=O)=[CH:20][CH:21]([CH3:23])[CH3:22])(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:35][O:36][C:37]1[CH:38]=[C:39](B(O)O)[CH:40]=[CH:41][CH:42]=1.C(=O)([O-])[O-].[Na+].[Na+]>O1CCOCC1.C(OCC)(=O)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:35][O:36][C:37]1[CH:38]=[C:39]([C:19]([C:11]2[N:10]([S:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)(=[O:9])=[O:8])[C:14]3=[N:15][CH:16]=[CH:17][CH:18]=[C:13]3[CH:12]=2)=[CH:20][CH:21]([CH3:23])[CH3:22])[CH:40]=[CH:41][CH:42]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 2734370(3-Methoxyphenyl)boronic acidHCID 86654521toluene-4-sulfonic acid-1-(1-benzenesulfonyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-3-methyl-but-1-enyl ester

Product 1

HCID 672290472-(1-(3-methoxy-phenyl)-3-methyl-but-1-enyl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridineYield 90%

Reagents, catalysts & solvents 3

HCID 178418476HCID 178418476, compoundCatalystHCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Procedure

A suspension of toluene-4-sulfonic acid-1-(1-benzenesulfonyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-3-methyl-but-1-enyl ester (prepared as in Example 130, 3.0 g, 6.04 mmol), 3-methoxy-phenylboronic acid (2.3 g, 15.1 mmol), bis(triphenylphosphine)palladium(II) dichloride (425 mg, 0.6 mmol) in 1,4-dioxane (30 mL) and an aqueous sodium carbonate solution (2N, 15.4 mL) was heated in a microwave at 100° C. for 2 h. The reaction mixture was diluted with ethyl acetate (20 mL) and washed with a saturated aqueous sodium bicarbonate solution (2×40 mL). The organics were dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. Silica gel column chromatography (30 g, petroleum ether/ethyl acetate 10:1) afforded 2-(1-(3-methoxy-phenyl)-3-methyl-but-1-enyl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (2.3 g, 90%) as a white solid: 1H NMR (300 MHz, CDCl3) δ ppm 8.50 (d, 1H, J=4.8 Hz), 7.90 (d, 1H, J=4.8 Hz), 7.67 (d, 2H, J=7.5 Hz), 7.42 (t, 1H, J=7.5 Hz), 7.27-7.18 (m, 3H), 6.82 ((t, 2H, J=9.0 Hz), 6.65 (s, 1H), 6.55-6.46 (m, 2H), 6.18-6.15 (d, 1H, J=10.2 Hz), 3.67 (s, 3H), 2.69-2.66 (m, 1H), 1.15 (s, 3H), 1.13 (s, 3H).

Workup

  1. washwashed with a saturated aqueous sodium bicarbonate solution (2×40 mL)
  2. dry with materialThe organics were dried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-0136803cb74a41789e41baf55f2eaf98
Source dataset
uspto-grants-2012_07
Patent number
US08222416B2

Reaction notes

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