反应详情

温度

100 °C

Into a 100-mL 3-necked round-bottom flask, was placed a solution of 3-methyl-1-phenyl-1H-indazol-6-amine (520 mg, 2.33 mmol, 1.00 equiv) in N,N-dimethylformamide (50 mL), 1H-benzo[d]imidazole-5-carboxylic acid (324 mg, 2.00 mmol, 0.86 equiv), NBu3 (925 mg, 5.00 mmol, 2.14 equiv). To the resulting mixture was then added 2-chloro-1-methylpyridiniumiodide (612 mg, 2.40 mmol, 1.03 equiv) at 50° C. The resulting solution was stirred for 2 days at 100° C. in an oil bath, then concentrated under vacuum. The residue was applied onto a silica gel column with dichloromethane/methanol (50:1). The resulting mixture was washed with methanol (1×10 mL) and diethyl ether (1×10 mL) to yield N-(3-methyl-1-phenyl-1H-indazol-6-yl)-1H-benzo[d]imidazole-5-carboxamide as a yellow solid.

1. customInto a 100-mL 3-necked round-bottom flask, was placed
2. customat 50° C
3. concentrationconcentrated under vacuum
4. washThe resulting mixture was washed with methanol (1×10 mL) and diethyl ether (1×10 mL)