金属络合物的相转移催化与分离

Phase Transfer Catalysis and Separation of Organometallic Catalyst

以可简单分离回收、可反复使用为目标 ,详细介绍了相转移催化的变化发展过程 .通过对溶剂的选择 ,使得催化剂选择性地溶解在某一液相中 ,而使产物溶解在另一液相中 ,如水 -有机两相催化体系 ;通过温度的变化 ,简单地实现了在较高温度下反应为均相体系以提高催化剂的活性 ,而在较低温度下实现了催化剂与产物不相溶使得催化剂得以简单分离 ,如温控型水 -有机两相催化体系、氟 -有机两相催化体系、温控型含氟催化剂、温控型有机金属催化剂等 .

The development of recyclable process for organometallic catalysts by simple phase separation has been reviewed. Selective dissolution of catalyst in one liquid phase while substrate and product in the other can be attained by choosing suitable solvent. A homogeneous reaction and two-phase separation process were achieved. By tuning the reaction temperature, this method has been successfully applied in temperature-dependent aqueous biphasic and fluorous biphasic systems with fluorous or organometallic catalyst.