496-41-3
苯并呋喃-2-羧酸
→
~99%
41717-28-6
1-苯并呋喃-2-羰酰氯
+
3416-93-1
2-(4,5-dihydro-1,3-oxazol-2-yl)aniline
527-69-5
呋喃甲酰氯
79-37-8
草酰氯