2,3-Dichloropyridine → 4-(3-Chloropyridin-2-yl)benzoic acid

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Tetrakis palladium (0.1 2 g, 0.1 mMol) was added to a suspension of carboxybenzene boronic acid (0.33 g, 2.0 mMol) and 2,3-dichloropyridine (0.296 g, 2.0 mMol) in a mixture of 0.4M K2CO3 (10 mL) and acetonitrile (10 mL) and the mixture was heated at 90° C. for 12 hrs under a blanket of nitrogen. The hot suspension was filtered, the filtrate concentrated to about half the original volume before being washed with methylene chloride. The aq. layer was carefully acidified with conc. HCl and the precipitate was collected, washed with water and vacuum dried to obtain the product as a white solid.

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