• 作者： Chou, Tse-Chuan; Chen, Lung-Chyuan
• 中文摘要： 本文在探討以非均勻化-均勻系金屬離子樹脂,催化丙醛與環己烯之共氧化反應。文中提出反應機構並以實驗和理論證明此機構,且發現過氧自由基的生成為環己烯氧化的基本步驟。鈷型樹脂比鐵型、銅型和錳型樹脂更具催化活性。反應的結果顯示92%的環己烯轉化率和89%的環氧化物選擇性可以達成。環氧化物和有機酸的生成活化能分別為20.7和 15.2Kcal/mol。文中亦提出此系統之反應速率式。
• 英文摘要： The cooxidation reaction of propionaldehyde and cyclohexene catalyzed by the heterogenized-homogeneous metal-ion resin was investigated. The reaction mechanism was proposed and confirmed both experimentally and theoretically. It was found that the formation of peroxy free radical was the key step to oxidize cyclohexene. The experimental results indicate that neither Fe-type resin nor Cu- type resin shows any catalytic activity to the epoxidation of cyclohexene. On the other hand, Co-type and Mn-type resin have a considerable activity. However, Co-type resin is much more active than Mu -type resin. The results also show that after six hours of reaction, a 92% conversion of cyclohexene and a 89% selectivity of cyclohexene oxide could be obtained. The apparent activation energies for the formations of cyclohexene oxide and total acid were 20.7 and 15.2Kcal/mol, respectively. The reaction rate equations were also obtained in this study.
• 中文關鍵字： 非均勻化均勻系; 共氧化; 丙醛; 環己烯; 反應機構; 金屬離子樹脂
• 英文關鍵字： Heterogenized-Homogeneous; Cooxidation; Propionaldehyde; Cyclohexene; Reaction Mechanism; Metal-Ion Resin