94632-42-5
2-Methyl-3,5-dioxohexansaeure-methylester
→
~81%
5192-62-1
3,6-二甲基-4-羟基-2-吡喃酮
58273-06-6
3-(anilinomethylene)-6-methylpyran-2,4-dione
~64%
92925-21-8
~62%
39619-07-3
2-methylpropanedioyl dichloride
+
116-11-0
2-甲氧基丙烯
~40%
609-02-9
甲基丙二酸二甲酯
675-10-5
4-羟基-6-甲基-2-吡喃酮