105-45-3
乙酰乙酸甲酯
+
3355-28-0
1-溴-2-丁炔
→
~79%
62344-15-4
methyl 3-oxooct-6-ynoate
3355-17-7
1-chlorobut-2-yne
86891-79-4
methyl 2-methyl-6-oxocyclohexene-1-carboxylate
103191-92-0
methyl 2-ethyl-5-oxocyclopent-1-enecarboxylate