反应详情

5-[4-(3-Chloro-propoxy)-phenyl]-2-methyl-2H-pyridazin-3-one was prepared from 5-(4-hydroxy-phenyl)-2-methyl-2H-pyridazin-3-one with 1-bromo-3-chloro-propane using the procedure described in Example 86 Step 3; Mp 90-91° C.; MS m/z 279 (M+H).