反应详情

Heat a solution of 2-(4-chloro-2-nitro-phenylamino)-5-isopropyl-benzonitrile (0.313 g, 0.99 mmol) in ethanol (6 ml) to 60° C. To this is add a solution of tin (II) chloride (0.752 g, 3.96 mmol) in 5.0 N hydrochloric acid (6 ml) and heat the resulting mixture to reflux for 16 hours. Cool the reaction to room temperature and place in a freezer for 16 hours. Collect by filtration the precipitated product s from the solution and to obtain 0.316 g of the title compound (0.98 mmol, 99% yield) as a yellow amorphous solid: Mass Spectrum (m/e): 286(M+1).

1. temperatureheat the resulting mixture
2. temperatureto reflux for 16 hours
3. temperatureCool
4. customthe reaction to room temperature
5. filtrationCollect by filtration the precipitated product s from the solution