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m-Chloroperbenzoic acid → 6-((5-bromo-3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole

HRID 1848062
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1848062
[Br:1][C:2]1[N:7]=[C:6]2[N:8]([CH2:11][C:12]3[CH:22]=[CH:21][C:15]4[N:16]=[C:17]([S:19][CH3:20])[S:18][C:14]=4[CH:13]=3)[CH:9]=[N:10][C:5]2=[CH:4][CH:3]=1.ClC1C=CC=C(C(OO)=[O:31])C=1.C([O-])(O)=O.[Na+]>C(Cl)Cl>[Br:1][C:2]1[N:7]=[C:6]2[N:8]([CH2:11][C:12]3[CH:22]=[CH:21][C:15]4[N:16]=[C:17]([S:19]([CH3:20])=[O:31])[S:18][C:14]=4[CH:13]=3)[CH:9]=[N:10][C:5]2=[CH:4][CH:3]=1
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Komponenten

5

Edukt 3

HCID 70297m-Chloroperbenzoic acidHCID 516892Sodium BicarbonateHCID 866810536-((5-bromo-3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylthio)benzo[d]thiazole

Produkt 1

HCID 866810546-((5-bromo-3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazoleAusbeute 100 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344
Dichloromethane
Lösungsmittel

Versuchsvorschrift

To a stirred solution of 6-((5-bromo-3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylthio)benzo[d]thiazole (1.02 g, 2.61 mmol) from Step 3 of this Example in DCM (50 mL) at 0° C. was added 70% meta-chloroperbenzoic acid (707 mg, 2.87 mmol) and the mixture was allowed to warm to rt and stirred for a further 45 min. To the mixture was added saturated aq NaHCO3 and the organic layer was separated. The aqueous layer was extracted with DCM and the combined organic layers were washed with saturated aq NaHCO3. The organic layer was separated, dried over MgSO4, filtered, and the filtrate was concentrated under reduced pressure to afford 6-((5-bromo-3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole (1.06 g, 100%) as a cream solid which did not require further purification. 1H NMR (300 MHz, DMSO-d6) δ 8.68 (s, 1H), 8.18 (s, 1H), 8.08-8.12 (m, 2H), 7.61 (m, 1H), 7.50 (d, J=9 Hz, 1H), 5.68 (s, 2H), 3.07 (s, 3H); LCMS (ESI) m/z 407 and 409 (M+H)+.

Aufarbeitung

  1. customat 0° C.
  2. customthe organic layer was separated
  3. extractionThe aqueous layer was extracted with DCM
  4. washthe combined organic layers were washed with saturated aq NaHCO3
  5. customThe organic layer was separated
  6. dry with materialdried over MgSO4
  7. filtrationfiltered
  8. concentrationthe filtrate was concentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-bec22b4e8fd348489ce9bb5ab5e4dcbf
Quelldatensatz
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08952058B2

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