反应详情

温度

-5 °C

5 g of 4-amino-2-chlorobenzonitrile and 40 ml of concentrated HCl in 30 ml of THF are mixed at -5° C.; 2.26 g of NaNO2 in 30 ml of water are added and the mixture is left stirring for 2 hours, 30 g of SnCl2 ·2H2O in 30 ml of concentrated HCl are then added and stirring is maintained at -5° C. for 30 minutes.

1. waitthe mixture is left
2. stirringstirring