Water → 7-Chloro-3-(2-phenyl-pyridin-4-yl)-imidazo[1,2-a]pyridine

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Reaction Steps

7-Chloro-3-(2-chloro-pyridin-4-yl)-imidazo[1,2-a]pyridine (1 eq, 1.136 mmol, 300 mg) and phenyl boronic acid (1 eq, 1.136 mmol, 138 mg) are dissolved in DME (3 ml) and water (1 ml) and Na2CO3 (2 eq, 2.27 mmol, 282 mg) is added. PdCl2(PPh3)2 (0.1 eq, 0.114 mmol, 79.7 mg) is added and the reaction mixture is heated using microwave radiation at 120° C. for 10 min. At the completion of this time the solvent is removed in vacuo and the reaction mixture is purified by flash column chromatography eluting with 8:2 DCM/MeOH to yield 7-chloro-3-(2-phenyl-pyridin-4-yl)-imidazo[1,2-a]pyridine as a yellow solid; [M+H]+=306

Provenance & Evidence