正庚醛正丁硫醇缩醛的合成

以正庚醛、硫代硫酸钠和溴代正丁烷为原料 ,合成了正庚醛正丁硫醇缩醛。通过实验得出合成正庚醛正丁硫醇缩醛的较好反应条件为 :硫代硫酸钠∶溴代正丁烷∶正庚醛 =0 .3 0∶ 0 .3 0∶ 0 .1 0 (mol比 ) ,2 m L 浓磷酸作催化剂 ,回流反应 8h。在较好的反应条件下 ,产物收率为 69.2 % ,产物经元素分析和红外光谱证实。

THE SYNTHESIS OF HEPTANAL BUTYL MERCAPTAL

The heptanal butyl mercaptal was synthesized with heptanal, sodium thiosuifate and 1bromobutane as raw materials. The results showed that optimal reaction conditions were sodium thiosuifate∶1bromobutane∶heptanal 0.3∶0.3∶0.1(mol ratio), 2 mL concentrated phosphoric acid as catalyst and reflux reaction time 8 h, the yield was 69.2%, the product were confirmed by elementary analysis and IR spectra.