609-14-3
2-甲基乙酰乙酸乙酯
+
74-95-3
二溴甲烷
→
~67%
107987-07-5
ethyl 2-(bromomethyl)-2-methyl-3-oxobutanoate
597-04-6
2,2-二甲基-3-氧代丁酸乙酯
4749-12-6
ethyl 2-methyl-4-oxopentanoate
55424-74-3
ethyl 3-methyl-4-oxopentanoate