反应详情

A solution of the product obtained at 142c (5.95 g, 24.6 mmol) in 100 mL dioxane and 100 mL half-conc. hydrochloric acid was heated to 110° C. for 1.5 h. The mixture was cooled in an ice bath, filtered and washed with water.

1. temperatureThe mixture was cooled in an ice bath
2. filtrationfiltered
3. washwashed with water