4341-76-8
2-丁炔酸乙酯
+
105-50-0
1,3-丙酮二羧酸二乙酯
→
~59%
53103-17-6
diethyl 2,4-dihydroxy-6-methylbenzene-1,3-dicarboxylate
674-82-8
双乙烯酮
504-15-4
3,5-二羟基甲苯