Methanol → (4-chloro-3-trifluoromethyl-phenyl)-[5-(2-methylsulfonylpyrimidin-4-yloxy)-1H-benzimidazol-2-yl]-amine

Participants

Reaction Steps

To a solution of (4-chloro-3-trifluoromethyl-phenyl)-[5-(2-methylsulfanyl-pyrimidin-4-yloxy)-1H-benzimidazol-2-yl]-amine (Step A, 280 mg, 0.6 mmol, 1.0 eq.) in MeOH (10 mL) was added dropwise an aqueous solution (10 mL) of Oxone® (1.14 g, 1.8 mmol, 3.0 eq.), and a white solid formed. The reaction was stirred for 4 h at RT. The MeOH was removed under reduced pressure, the residue was diluted with 10% aq. NaHCO3 and extracted with CH2Cl2. The organic layer was washed with 10% aq. NaHCO3 and the organic layers were extracted with CH2Cl2. The combined organic layers were dried over MgSO4, filtered and concentrated. The crude was further purified by column chromatography (0-100% EtOAc/hexanes) to yield (4-chloro-3-trifluoromethyl-phenyl)-[5-(2-methylsulfonylpyrimidin-4-yloxy)-1H-benzimidazol-2-yl]-amine. MS m/z=484.0 (M+H)+; MW Calc'd for C19H13ClF3N5O3S: 483.86.

Provenance & Evidence