Pyridazines. Part V. Preparation and reactions of some dialkylaminopyridazinones
Abstract
Reactions of 4(5)-chloro-6-hydroxypyridazin-3(2H)-one and of 4,5-dichloro- and 4,5,6-trichloropyridazin-3(2H)-ones with amines are described. 6-Butoxy-4- and 5-morpholinopyridazin-3(2H)-ones are obtained by alkylation of 6-hydroxy-4(or 5)-morpholinopyridazin-3(2H)-one and also from 6-butoxy-4- and 5-chloropyridazin-3(2H)-ones. They are O-alkylated by Meerwein's reagent.