1221171-75-0
2-chloro-4-(trichloromethoxy)pyridine
→
~49%
1206975-33-8
2-chloro-4-(trifluoromethoxy)pyridine
26452-80-2
2,4-二氯吡啶
+
58530-53-3
2,4-二溴吡啶
1206977-89-0
2-bromo-4-(trifluoromethoxy)pyridine