2-Chloro-4-iodo-5-(trifluoromethyl)pyridine → 2-(2-Chloro-5-(trifluoromethyl)pyridin-4-ylamino)-6-methoxy-N-methylbenzamide

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

2-chloro-4-iodo-5-(trifluoromethyl)pyridine (790 mg, 2.57 mmol), 2-amino-6-methoxy-N-methylbenzamide (477 mg, 2.65 mmol), diacetoxypalladium (46.2 mg, 0.21 mmol), (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) (238 mg, 0.41 mmol) and cesium carbonate (1005 mg, 3.08 mmol) were mixed together in dioxane (15 mL). Reaction was degassed with argon and was stirred at 90 °C overnight under argon. Reaction was filtered, washed with CH2Cl2 and filtrate was concentrated to dryness. The crude product was purified by flash chromatography on silica gel eluting with 0 to 50% ethyl acetate in dichloromethane. The solvent was evaporated to dryness to afford 2-(2-chloro-5-(trifluoromethyl)pyridin-4-ylamino)-6-methoxy-N-methylbenzamide (590 mg, 63.8 %) as a white foam.

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