tert-Butanol → (1H-benzo[d]imidazol-2-yl)(4-(3-(2-(4-methoxybenzyloxy)pyridin-3-yl)pyrazin-2-yloxy)phenyl)methanone

Participants

Reaction Conditions

Reaction Steps

To a mixture of (1H-benzo[d]imidazol-2-yl)(4-(3-(2-fluoropyridin-3-yl)pyrazin-2-yloxy)phenyl)methanone (200 mg, 0.486 mmol) and 4-methoxybenzyl alcohol (0.905 mL, 7.29 mmol) in toluene in a 6 mL tube was added potassium tert-butoxide, 1.0 m solution in 2-methyl-2-propanol (2.431 mL, 2.431 mmol). The reaction was heated to 80° C. After 7 min a mixture of products was observed by LC/MS. The mixture was diluted with DCM (30 mL), and washed with water (3×25 mL) and brine (30 mL). It was dried over magnesium sulfate, concentrated and dried in vacuo. It was purified by flash chromatography (40 g SiliaSep pre-packed silica gel column, eluent: 0-40% EtOAc in hexane) to give (1H-benzo[d]imidazol-2-yl)(4-(3-(2-(4-methoxybenzyloxy)pyridin-3-yl)pyrazin-2-yloxy)phenyl)methanone. MS (ESI, pos. ion) m/z: 532.0 (M+1).

Provenance & Evidence