106-44-5
对甲酚
+
638-07-3
4-氯乙酰乙酸乙酯
→
~83%
41295-65-2
4-氯甲基-6-甲基-苯并吡喃-2-酮
84096-84-4
6-methyl-2-oxo-2H-chromene-4-carbaldehyde
14002-89-2
4,6-二甲基-2-苯并吡喃酮
84105-42-0
4-Hydroxymethyl-6-methylcoumarin