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3-乙酰-4-羟基喹啉-2-酮和芳香醛在L-脯氨酸有效催化下发生Aldol反应,生成一系列缩合产物3-α,β-不饱和酮取代-4-羟基喹啉-2-酮.该反应在甲醇溶液中进行,并且产物作为沉淀直接从溶液中析出,简单洗涤可得纯产物.研究表明芳香醛上的取代基性质对产物的产率有显著影响,其结果证实了该缩合反应经历了一个脱水中间体的反应历程.此外,对产物的荧光性质研究表明该类化合物可作为潜在应用价值的有机光学材料.
3-Acetyl-4-hydroxyquinolin-2-one and aromatic aldehydes catalyze the Aldol reaction catalyzed by L-proline to form a series of condensation products of 3-α, β-unsaturated ketone substituted 4-hydroxyquinoline The reaction was carried out in methanol solution and the product precipitated directly from the solution as a precipitate and the pure product was obtained by a simple wash.The results showed that the nature of the substituent on the aromatic aldehyde has a significant effect on the yield of the product. It was confirmed that the condensation reaction experienced a reaction process of dehydrated intermediates.In addition, the fluorescence properties of the product showed that the compounds could be used as potential organic optical materials.