67-56-1
甲醇
+
66696-86-4
5-(3-ethoxy-1-hydroxypropylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
→
18230-00-7
methyl 5-ethoxy-3-oxopentanoate
105-45-3
乙酰乙酸甲酯
49775-37-3
3-ethoxypropanoyl chloride