108-96-3
吡咯烷二硫代甲酸铵
+
65-85-0
苯甲酸
→
~84%
36228-61-2
pyridin-4-yl benzoate
98-88-4
苯甲酰氯
~76%
110-89-4
哌啶
626-64-2
4-羟基吡啶