175205-81-9
2-溴-4-(三氟甲基)吡啶
→
~51%
142946-79-0
4-(trifluoromethyl)-2-[4-(trifluoromethyl)pyridin-2-yl]pyridine
81565-18-6
2-氯-4-三氟甲基吡啶
~33%