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Water → N-[2-cyclopropyl-7-(1,5-dimethyl-6-oxopyridin-3-yl)-1-benzofuran-5-yl]ethanesulfonamide

HRID 575843
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 575843
[CH:1]1([C:4]2[O:5][C:6]3[C:12](I)=[CH:11][C:10]([NH:14][S:15]([CH2:18][CH3:19])(=[O:17])=[O:16])=[CH:9][C:7]=3[CH:8]=2)[CH2:3][CH2:2]1.[CH3:20][N:21]1[CH:26]=[C:25](B2OC(C)(C)C(C)(C)O2)[CH:24]=[C:23]([CH3:36])[C:22]1=[O:37].C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH:1]1([C:4]2[O:5][C:6]3[C:12]([C:25]4[CH:24]=[C:23]([CH3:36])[C:22](=[O:37])[N:21]([CH3:20])[CH:26]=4)=[CH:11][C:10]([NH:14][S:15]([CH2:18][CH3:19])(=[O:17])=[O:16])=[CH:9][C:7]=3[CH:8]=2)[CH2:3][CH2:2]1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 962Water2×HCID 11430Potassium CarbonateHCID 712703091,3-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2-dihydropyridin-2-oneHCID 118022204N-(2-cyclopropyl-7-iodo-1-benzofuran-5-yl)ethanesulfonamide

Produkt 1

HCID 118021844N-[2-cyclopropyl-7-(1,5-dimethyl-6-oxopyridin-3-yl)-1-benzofuran-5-yl]ethanesulfonamide
Ausbeute 47 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)KatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a solution of the title compound from Step 3 (500 mg, 1.3 mmol) and 1,3-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-one (380 mg, 1.5 mmol) in 10 mL of DMF was added K2CO3 (50 mg, 3.8 mmol), water (2 mL) and Pd(dppf)Cl2 (30 mg) under N2. The reaction mixture was heated to 100° C. for 1 h. The resulting mixture was poured into 100 mL of water and extracted with DCM (100 mL×2). The combined organic layers were dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with EtOAc to give the title compound (230 mg, 47% yield) as a white solid. 1H NMR (CDCl3, 400 MHz): δ 7.81 (d, J=3.6 Hz, 1H), 7.67-7.66 (m, 1H), 7.26 (t, J=1.2 Hz, 1H), 7.12 (d, J=3.2 Hz, 1H), 6.54 (br, 1H), 6.36 (d, J=0.8 Hz, 1H), 3.67 (s, 3H), 3.14-3.06 (m, 2H), 2.25 (s, 3H), 2.11-2.00 (m, 1H), 1.38-1.43 (m, 3H), 1.09-0.92 (m, 4H). LCMS: 387 (M+1)+.

Aufarbeitung

  1. extractionextracted with DCM (100 mL×2)
  2. dry with materialThe combined organic layers were dried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by column chromatography on silica gel eluting with EtOAc

Quellen und Nachweise

ORD-Eintrag
ord-20c6502bc54549ab80c3d4b466cfb4c5
Quelldatensatz
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09034900B2

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