201230-82-2
carbon monoxide
+
143225-17-6
→
~76%
143225-18-7
3-methoxycarbonyl-4-methylpent-3-enoate
38923-57-8
2,2-二甲基乙酰乙酸甲酯
76904-21-7
dimethyl 2,2,3-trimethylbutanedioate