Pyridazines. Part IV. Reaction of alkoxydichloropyridazines and di-alkoxychloropyridazines with amines
Abstract
Nucleophilic attack by amines replaces chlorine in 3,6-dialkoxy-4-chloro- and 5- and 6-alkoxy-3,4-dichloro-pyridazines, but in 4-alkoxy-3,6-dichloro- and 4,6-dialkoxy-3-chloro-pyridazines replacement of an alkoxy-group may occur concurrently or preferentially.