合成了自掺杂聚苯胺盐PABSA,并成功应用于醛和乙酸酐的缩醛化反应,发现此聚苯胺盐催化剂具有高效、可回收等特性。同时,利用二元醇作为保护基团,醛也可以转化成相应的缩醛。考察了反应时间、温度和催化剂用量对反应的影响,并通过IR、1H NMR、13C NMR和元素分析对部分产物进行了结构表征。 Self-doping polyaniline salt PABSA was synthesized and successfully applied to the acetalization of aldehyde and acetic anhydride. The polyaniline salt catalyst was found to be highly efficient and recyclable. In the meantime, aldehydes can also be converted to the corresponding acetals using glycols as a protecting group. The effects of reaction time, temperature and amount of catalyst on the reaction were investigated. Some of the products were characterized by IR, 1H NMR, 13C NMR and elemental analysis.