反应详情

温度

0 °C

Under a nitrogen atmosphere a mixture of 9.98 g (50.9 mmol) 2-(5-methoxy-2-nitrophenyl)-ethylamine, 9.80 mL (54.9 mmol) N-benzylpiperidone and 6.30 mL (114 mmol) acetic acid in 270 mL dichloromethane was cooled to 0° C. in an ice bath. At this temperature 14.2 g (67.0 mmol) sodium triacetoxyborohydride were added batchwise within 20 min. The reaction mixture was left for a further 4 h at 0° C. and warmed up to RT overnight. Then the mixture was combined with 400 mL of a 15% (w/v) aqueous potassium carbonate solution and stirred for 1 h at RT. The organic phase was separated off, dried and concentrated by rotary evaporation.

1. temperaturewarmed up to RT overnight
2. customThe organic phase was separated off
3. customdried
4. concentrationconcentrated by rotary evaporation