反应详情

温度

0 °C

2-Isopropoxy-N-isopropyl-5-nitrobenzenamine 29 (218 mg, 0.915 mmol, 1 equiv) in DMF (4 mL) under nitrogen gas, was cooled to 0° C. Sodium hydride (60% oil, 168 mg, 3.84 mmol, 4.2 equiv) was added in one portion, and the reaction mixture was stirred for 10 minutes at 0° C. Methyl iodide (525 uL, 7.68 mmol, 8.4 equiv) was added at 0° C., then the reaction mixture was stirred at ambient temperature for 2 hours, and heated at 80° C. overnight. The reaction mixture was concentrated to dryness and directly loaded into a silica gel flash column and eluted with dichloromethane to provide 2-isopropoxy-N-isopropyl-N-methyl-5-nitrobenzenamine 30 (205 mg, 89%) as a solid.

1. stirringthe reaction mixture was stirred at ambient temperature for 2 hours
2. temperatureheated at 80° C. overnight
3. concentrationThe reaction mixture was concentrated to dryness
4. washeluted with dichloromethane