一种丙基磷酸酐的合成方法
本发明涉及一种丙基磷酸酐的合成方法,包括如下步骤:步骤一,树脂催化中性水解;步骤二,复合助剂协同缩合;步骤三,三段梯度低温减压蒸馏;步骤四,低温重结晶精制;将所述馏分用无水碳酸酯溶剂进行低温重结晶,得到丙基磷酸酐。其优点为通过树脂催化中性水解、复合助剂协同缩合、三段梯度低温减压蒸馏及低温重结晶精制四大步骤的协同配合,实现电子级高纯度PACA的绿色高效合成。
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