可調控之芳基咪唑再循環離子液體的催化研究進展

The Study of Tunable Aryl Imidazolium Recyclable Ionic Liquids as Green Catalysts

林帟君(Yi-Jyun Lin) ； 何文岳(Wen-Yueh Ho) ； 羅順原(Shun-Yuan Luo)

《化學》 78卷3期 (2020/09) Pp. 199-211

https://doi.org/10.6623/chem.202009_78(3).003

摘要

離子液體的高酸度及其所具備的環保特性，是可替代腐蝕性均質酸的出色催化劑。它們具有熱穩定性、可重複使用並且方便安全，適合催化各類有機反應。將可調控之芳基咪唑再循環離子液體作為新型酸性催化劑，用於傅-克醯化、硫酯化、全乙醯化和區域選擇性O-4還原開環。因為這些反應具有形成高原子經濟性的C-C鍵、C-S鍵、C-O鍵和C-H鍵之優點。在這項研究中證明可調控芳基咪唑再循環離子液體是滿足綠色化學標準的高效廣用催化劑。

關鍵字

離子液體 ； 傅－克反應 ； 硫酯化 ； 乙醯化 ； O-4開環 ； 重複使用

並列摘要

Ionic liquids are better catalysts than corrosive homogeneous acids because of their high acidity and reuse. Owing to their thermal stability, reuse, and safty, ionic liquids can be applied in many organic chemistry as green catalysts. Tunable aryl imidazolium recyclable ionic liquids were found to be catalysts for Friedel-Crafts reaction, thioesterification, per-O-acetylation and reductive O-4 ring opening of benzylidene acetals. These reactions can form C-C, C-S, C-O and C-H bonds with a high atomeconomy. Ionic liquids exhibited high activity and catalyzed essential reactions with good yields while retaining their catalytic activities for recycling.

並列關鍵字

Ionic liquids ； Green catalysts ； Friedel-Crafts reaction ； Thioesterification ； Per-O-acetylation ； Ring opening of benzylidene