Reaktion #313298

Reaktionsgleichung

N-Propylmagnesium bromide

3-(5-fluoro-3-methyl-benzo[b]thiophen-2-yl)-2,6-dimethyl-imidazo[1,2-b]pyridazine-8-carboxylic acid methoxy-methyl-amide

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title compound

1-[3-(5-Fluoro-3-methyl-benzo[b]thiophen-2-yl)-2,6-dimethyl-imidazo[1,2-b]pyridazin-8-yl]-butan-1-one

Lösungsmittel

THF

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe mixture is quenched with H2O
2. 2
   Extraktionextracted with CH2Cl2
3. 3
   Trocknendried over sodium sulfate
4. 4
   Filtrationfiltered
5. 5
   Einengenconcentrated to dryness
6. 6
   SonstigeThe crude is purified through an ISCO column (5-10% EtOAc/Hexane)

Vorschrift

N-Propylmagnesium bromide (0.303 g, 2.06 mmol) is added dropwise to a solution of 3-(5-fluoro-3-methyl-benzo[b]thiophen-2-yl)-2,6-dimethyl-imidazo[1,2-b]pyridazine-8-carboxylic acid methoxy-methyl-amide (0.21 g, 0.52 mmol) in THF (5 mL) at 0° C. The reaction is stirred at room temperature overnight. The mixture is quenched with H2O, extracted with CH2Cl2, dried over sodium sulfate, filtered, and concentrated to dryness. The crude is purified through an ISCO column (5-10% EtOAc/Hexane) to give the title compound (0.92 g, 42%). 1H NMR (CDCl3): δ 7.8 (dd, J=4.8, 8.5 Hz, 1H), 7.5 (dd, J=2.5, 9.7 Hz, 1H), 7.4 (s, 1H), 7.2 (m, 1H), 3.6 (t, J=5.7, 2H), 2.6 (s, 3H), 2.55 (s, 3H), 2.3 (s, 3H), 1.9 (m, 2H), 1.1 (t, J=7.5, 3H) ppm. MS (m/e): 382 (M+1).

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