Cesium carbonate → tert-butyl 1-(1-cyclopropyl-1-oxopropan-2-yl)-2-methyl-1H-pyrrolo[2,3-b]pyridine-3-carboxylate

Participants

Reaction Steps

The solution of tert-butyl 2-methyl-1H-pyrrolo[2,3-b]pyridine-3-carboxylate (300.00 mg, 1.29 mmol), 2-bromo-1-cyclopropylpropan-1-one (342.98 mg, 1.94 mmol), Cs2CO3 (841.63 mg, 2.58 mmol), KI (42.88 mg, 0.26 mmol) in DMF (4 ml) were stirred at 25° C. for 18 h. After the reaction completed, the solution was partitioned between EtOAc and H2O. The organic layer was separated, dried over Na2SO4 and evaporated under reduced pressure. The residue was purified by flash column (Eluent: PE:EtOAc=10:1) to get tert-butyl 1-(1-cyclopropyl-1-oxopropan-2-yl)-2-methyl-1H-pyrrolo[2,3-b]pyridine-3-carboxylate as a white oil. (230 mg, yield 54%).

Provenance & Evidence