反应详情

温度

60 °C

1.23 ml (9.4 mmol) of 1-iodo-3-methylbutane and 6.12 g (18.8 mmol) of caesium carbonate were added to 2.0 g (8.5 mmol) of ethyl 8-hydroxy-2,6-dimethylimidazo[1,2-a]pyridine-3-carboxylate Example 239A in 122.3 ml of DMF, and the mixture was stirred at 60° C. for 40 min. 900 ml of water were added to the reaction mixture, which had cooled to RT, and the mixture was stirred at RT for 1 h, and the precipitated solid was filtered off, washed with water and dried under high vacuum. This gave 2.25 g (84% of theory; purity 97%) of the title compound.

1. temperaturehad cooled to RT
2. stirringthe mixture was stirred at RT for 1 h
3. filtrationthe precipitated solid was filtered off
4. washwashed with water
5. customdried under high vacuum