613-84-3
5-甲基水杨醛
+
105-53-3
丙二酸二乙酯
→
~90%
54396-24-6
ethyl 6-methyl-2-oxochromene-3-carboxylate
74901-08-9
2-羟基-5-(羟基甲基)苯甲醛
176770-20-0
ethyl 6-(hydroxymethyl)-2-oxochromene-3-carboxylate
10242-13-4
6-甲基-3-羧酸香豆素