以硅胶为基质用γ－ＧＯＰＳ偶联后，接枝邻位氨基吡啶，间位、对位酰氨基吡啶三种配体后，与ＦｅＣｌ３或ＳｎＣｌ４饱和溶液络合，合成固载化的Ｌｅｗｉｓ酸催化剂，并以此类催化剂进行缩醛缩酮及酯化反应，获得良好效果．且催化剂可重复使用多次不失效，证实此类催化剂络合效应是好的 After silica-based matrix was coupled with γ-GOPS, three ligands of aminopyridine, meta and para-aminopyridine were grafted onto the silica gel and then complexed with FeCl3 or SnCl4 saturated solution to synthesize immobilized Lewis acid catalyst , And acetal ketal and esterification reaction with these catalysts to obtain good results. And the catalyst can be reused many times without failure, confirming that such catalyst complexation effect is good