19064-67-6
3-羟基-6-氯哒嗪
+
108-86-1
溴代苯
→
~83%
1698-57-3
6-Chloro-2-phenyl-3(2H)-pyridazinone
1698-54-0
6-羟基-2-苯基-3-哒酮
~79%