186581-53-3
重氮甲烷
+
98-98-6
2-吡啶甲酸
→
~64%
2459-07-6
2-吡啶甲酸甲酯
83308-31-0
2-diazonio-1-pyridin-2-ylethenolate
29745-44-6
2-吡啶甲酰氯
~36%