Recycling a Homogeneous Catalyst through a Light-Controlled Phase Tag
作者:Guiyan Liu、Jianhui Wang
DOI:10.1002/anie.200906034
日期:2010.6.14
A homogeneous ruthenium–carbene complex was tagged with a light‐responding nitrobenzospiropyran group to control its solubility through reversible conversion between its neutral (lipophilic) and ionic (lipophobic) states using light irradiation (see scheme; Mes=mesityl). This tagged complex has significant catalytic activity in ring‐closing metathesis reactions and was recycled several times.
均匀的钌-卡宾络合物带有一个光响应性硝基苯并螺吡喃基团,以通过使用光辐照在其中性(亲脂性)和离子性(疏脂性)状态之间可逆转换来控制其溶解度(参见方案; Mes = mesityl)。这种标记的复合物在闭环复分解反应中具有显着的催化活性,并被回收了数次。