89-51-0
邻羧基苯乙酸
+
4755-77-5
草酰氯单乙酯
→
~62%
111686-63-6
ethyl 1-oxoisochromene-3-carboxylate
17507-56-1
Acetic acid, diazo(diethoxyphosphinyl)-, ethyl ester
119-67-5
邻羧基苯甲醛
~52%
22121-86-4
2-乙氧基-2-丙酸乙酯
1829-28-3
2-碘苯甲酸乙酯,
2289-03-4
1-oxoisochromene-3-carboxylic acid