10544-63-5
2-丁烯酸乙酯
+
66-25-1
正己醛
→
~72%
344798-49-8
ethyl 3-methyl-4-oxononanoate
41891-38-7
(E)-ethyl 3-methyl-4-oxobut-2-enoate
110-53-2
溴代正戊烷