6921-66-0
4'-氯-2'-羟基苯乙酮
+
95-92-1
乙二酸二乙酯
→
~69%
38322-69-9
ethyl 6-chloro-4-oxochromene-2-carboxylate
1450-74-4
2-羟基-5-氯苯乙酮