Sodium Carbonate → 1-benzenesulfonyl-2-[2-cyclopentyl-1-(2,3-dihydro-benzo[1,4]dioxin-6-yl)-vinyl]-1H-pyrrolo[2,3-b]pyridine

HRID 1515742

Reaktionsgleichung

Reaktionsgleichung von HRID 1515742
[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]2[CH2:25][CH2:24][CH2:23][CH2:22]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[O:37]1[C:42]2[CH:43]=[CH:44][C:45](B(O)O)=[CH:46][C:41]=2[O:40][CH2:39][CH2:38]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>[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]([C:45]2[CH:44]=[CH:43][C:42]3[O:37][CH2:38][CH2:39][O:40][C:41]=3[CH:46]=2)=[CH:20][CH:21]2[CH2:25][CH2:24][CH2:23][CH2:22]2)(=[O:9])=[O:8])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Komponenten

7

Edukt 3

HCID 10340Sodium CarbonateHCID 2776178(2,3-Dihydro-1,4-benzodioxin-6-yl)boronic acidHCID 86654505HCID 86654505, Verbindung

Produkt 1

HCID 672290441-benzenesulfonyl-2-[2-cyclopentyl-1-(2,3-dihydro-benzo[1,4]dioxin-6-yl)-vinyl]-1H-pyrrolo[2,3-b]pyridineAusbeute 96 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418476HCID 178418476, VerbindungKatalysatorHCID 8857Ethyl AcetateLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

To a mixture of toluene-4-sulfonic acid-1-(1-benzenesulfonyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-vinyl ester (prepared as in Example 43, 0.15 g, 0.28 mmol), 1,4-benzodioxane-6-boronic acid (0.13 g, 0.72 mmol) and dichlorobis(triphenylphosphine)palladium (II) (21 mg, 0.03 mmol) in dioxane (3 mL) was added an aqueous sodium carbonate solution (2 M, 0.36 mL). The resulting mixture was subjected to microwave irradiation for 2 h at 100° C. The mixture was diluted with ethyl acetate (100 mL), washed with a saturated aqueous sodium bicarbonate solution (2×30 mL), brine, dried over anhydrous sodium sulfate and then concentrated in vacuo. Purification by flash silica gel chromatography (silica gel from QingDao, 200-300 mesh, glass column from Shanghai SD company, 50% ethyl acetate/hexanes) afforded 1-benzenesulfonyl-2-[2-cyclopentyl-1-(2,3-dihydro-benzo[1,4]dioxin-6-yl)-vinyl]-1H-pyrrolo[2,3-b]pyridine (130 mg, 96%) as a white solid: LC/MS m/e calcd for C28H26N2O4S [M+H]+ 487.59, observed 487.2.

Aufarbeitung

  1. customirradiation for 2 h at 100° C
  2. washwashed with a saturated aqueous sodium bicarbonate solution (2×30 mL), brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customPurification by flash silica gel chromatography (silica gel from QingDao, 200-300 mesh, glass column from Shanghai SD company, 50% ethyl acetate/hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-d0deec37959a43169c0c654056a2d957
Quelldatensatz
uspto-grants-2012_07
Patentnummer
US08222416B2

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