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本文发现 ,正二十面体十二聚钨多酸对丙酮分子羟醛缩合生成 4 甲基 4 羟基 2 戊酮具备有效的催化作用 .
In this paper, we found that icosahedron dodecamethylene tungstic acid condensation of acetone molecules aldol 4 methyl 4 hydroxyl 2 pentanone has an effective catalytic effect.