695-56-7
2-环戊烯-1-酮缩乙醛
→
~78%
25404-15-3
1,4-dioxaspiro[4.4]non-8-en-7-one
930-60-9
4-环戊烯-1,3-二酮
+
107-21-1
乙二醇
~22%