770719-78-3
methyl [(2-acetoxyphenyl)hydroxymethylidene]cyanoacetate
→
~63%
10523-48-5
4-羟基-2-氧代-2H-色烯-3-甲腈
1076-38-6
4-羟基香豆素
+
143-33-9
氰化钠
~51%
50-78-2
2-(乙酰氧基)苯甲酸
105-56-6
氰乙酸乙酯
5538-51-2
邻乙酰水杨酰氯