高效合成二亚糠基丙酮的基础研究

CATALYTIC SYNTHESIS OF 1,5-BIS(2-FURANYL)-1,4-PENTADIEN-3-ONE

以糠醛和丙酮为原料,通过羟醛缩合反应制备二亚糠基丙酮;采用FT-IR,1 H-NMR,XRD方法对产物进行表征。结果表明:缩合产物经表征证实为二亚糠基丙酮;以0.1mol/L KOH溶液为催化体系,在反应温度为20℃、反应时间为10h、n(糠醛)∶n(丙酮)为2.0的条件下,产品二亚糠基丙酮收率达98.5%,纯度为98%。

1,5-Bis（2-furanyl）-1,4-pentadien-3-one was synthesized by the aldol condensation reaction of furfural and acetone in inorganic base medium and is identified by FT-IR, 1 H-NMR and XRD. The optimum conditions for the reaction are： reaction medium of 0.1 mol L KOH （aq）,reaction temperature of 20 ℃,reaction time of 10 h,the molar ratio of furfural to acetone of 2∶1. Under the optimum conditions,the yield of product is 98.5% with a purity of 98%.