Several 3- and 4-alkylaminomethylpyridazines were prepared from 3-hydroxypyridazine 1-oxide and 3-hydroxy-6-chloropyridazine 1-oxide, respectively, using the Mannich reaction. 3, 5-Bis (morpholinomethyl) pyridazine was analogously prepared from 3-hydroxy-pyridazine 1-oxide.
