反应详情

m.p. 135°-136° C., 10.9 g., was prepared as in Example 1 using a solution of 4-isopropoxybenzoyl chloride (from 18.0 g. of 4-isopropoxybenzoic acid as in Example 6) in 100 ml. of ethylene dichloride, 8.9 g. of 1,7-heptanediamine, 200 ml. of 10% aqueous potassium hydroxide solution, 500 ml. ethylene dichloride and recrystallization from acetonitrile using decolorizing charcoal.

1. customethylene dichloride and recrystallization from acetonitrile using