【摘要】 应用聚苯乙烯-四氯化钛复合物（PS-TiCl₄）和苯乙烯-丙烯腈共聚物-四氯化钛复合物（PSAN—TiCl₄）两种固载化Lewis酸催化剂作为Knovenenagel缩合和环化反应的催化剂,成功地合成了多种γ-内酯。结果表明这两种高分子固载化Lewis酸催化剂对于Knovenenagel缩合和环化反应均有很高的催化活性,后者效果更佳。更多还原

【Abstract】 Two polymer-supported Lewis acid catalysts PS-TiCl₄and PSAN-TiCl₄ were applied to synthesize several,γ-lactone success-fully. These results proved that these polymer-supported Lewis acidcatalysts are highly effective catalysts for Knovenenagel condensation andcyclization reaction, and also PSAN-TiCl₄ is more effective than PS-TiCl₄.更多还原