反应详情

5-Amino-3-methylindazole (300 mg, 2.04 mmol, 1.00 equiv) was dissolved in acetonitrile (4 mL) and diketene (151 uL, 2.04 mmol, 1.00 equiv) was added. The reaction mixture was stirred overnight, and the reaction mixture was purified directly by silica gel chromatography (50→100% EtOAc/hexanes)

1. customthe reaction mixture was purified directly by silica gel chromatography (50→100% EtOAc/hexanes)