反应详情

To a solution of 12.1 g. of 4-bromophenylhydrazine hydrochloride in a mixture of 10.9 ml. of 5 N sodium hydroxide, 100 ml. of 30% aqueous acetic acid and 50 ml. of p-dioxane is added 10.0 g. of N-(dimethylaminomethylene)-p-nitrobenzamide. The procedure of Example 2 is followed, giving 12.7 g. of the desired product as tan crystals, mp. 142°-144° C.

1. customgiving 12.7 g