假紫罗酮合成方法的研究

An investigation on the synthesis of pseudoionone

研究了以固体Ba(OH) 2 作为催化剂 ,使柠檬醛与丙酮醛醇缩合反应制备假紫罗酮的方法。发现在体系中加入少量乙醇可以加快缩合反应的速度 ;加入微量的添加剂可以有效地提高反应的选择性 ,成功地抑制副反应的发生。

Using solid barium hydroxide as catalyst, a preparation method of pseudoionone from citral and acetone has been studied. Adding a small quantity of ethanol leads to accelerated reaction rate, and a trace amount of a specific additive can obviously inhibit the side reaction and increase the reaction selectivity.