Yang Yun-Chin, Luh Tien-Yau
Department of Chemistry and Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan 106.
J Org Chem. 2003 Dec 12;68(25):9870-3. doi: 10.1021/jo035318z.
The phosphine-containing polymer 1 is obtained by ruthenium-catalyzed ring-opening metathesis polymerization of the norbornene derivative 2. Polymer 1 is employed as the polymer support in the palladium-catalyzed Heck, Sonogashira, and Negishi reactions, and the corresponding (methoxymethylphenyl)diphenylphosphine (6) ligand is used for comparison. The polymer-supported catalysts retain most of their catalytic activities in these coupling reactions in the recycling processes.
含膦聚合物1是通过钌催化降冰片烯衍生物2的开环易位聚合反应制得的。聚合物1被用作钯催化的Heck反应、Sonogashira反应和Negishi反应中的聚合物载体，并使用相应的(甲氧基甲基苯基)二苯基膦(6)配体进行比较。在循环过程中，聚合物负载的催化剂在这些偶联反应中保留了大部分催化活性。
