Sodium Carbonate → N-[4-(5-formyl-4-phenyl-1,3-thiazol-2-yl)pyridin-2-yl]acetamide

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Reaction Conditions

Reaction Steps

Tris(dibenzylideneacetone)dipalladium(0) (0.0162 g, 0.0177 mmol) and tri-t-butylphosphonium tetrafluoroborate (0.0103 g, 0.0355 mmol) were weighed into a round bottom flask and dissolved in DME (3 mL). The mixture was sonicated for 15 min under atmosphere of Argon. After addition of water (1 mL), sodium carbonate (0.226 g, 2.13 mmol) was added to the dark purple solution followed by phenylboronic acid (0.173 g, 1.42 mmol) and N-[4-(4-chloro-5-formyl-1,3-thiazol-2-yl)pyridin-2-yl]acetamide (0.200 g, 0.710 mmol). The resulting mixture was stirred for 10 h at 80° C., cooled to room temperature, diluted with water and extracted with DCM (3×5 mL). The organics were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated. The result mixture was purified by ISCO column with 0-5% MeOH in DCM in 10 min. Fractions containing product were combined and solvent was removed under reduced pressure to give crude material (0.099 g, 43%), which was used in the next step without further purification. LCMS: (FA) ES+ 324.

Provenance & Evidence