本文指出了现行有机化学实验教材中的交叉羟醛缩合反应存在的不足，并提出改进措施。
Some problems about the intersection condensation of aldol in the present textbook of organic Chemical Experiment are pointed out. Mean while some improved are presented.
在碱性催化剂的存在下，甲醛和丁醛经羟醛缩合反应合成2,2—二羟甲基丁醛。
Respectively using barium hydroxide and a basic anion exchanger as a catalyst, 2, 2-bis (hydroxymethyl) butyraldehyde is prepared from the Aldol condensation of butyraldehyde with formaldehyde.
研究了在稀碱催化下邻羟基苯乙酮和苯甲醛在乙醇溶液中的羟醛缩合反应，溶剂可以循环使用，适合工业化生产。
During the condensation reaction, the feedstock remaining after reaction can be recycled, and this synthesis route was suitable for the commercial production.
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