Water → HCID 22933709, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of the 1H-indazol-5-ol (300 mg, 2.24 mmol) obtained in Reference Example 4 in N,N-dimethylformamide (6 ml) were added 2-bromonitrobenzene (497 mg, 2.46 mmol) and potassium carbonate (402 mg, 2.91 mmol), and the resulting mixture was heated to 120° C. After 6 hours, the mixture was poured into water (20 ml) and extracted with ethyl acetate (20 ml×2). The organic layer was dried over anhydrous magnesium sulfate. The organic layer dried was concentrated under reduced pressure and the resulting residue was purified by a silica gel column chromatography (eluent: hexane/ethyl acetate) to obtain 5-(2-nitrophenoxy)-1H-indazole (57 mg, 10%).

Provenance & Evidence