SYNTHESES OF POLYMER-BOUND RHODIUM COMPLEXES AND THEIR APPLICATION AS CATALYSTS FOR THE HYDROFORMYLATION OF DIISOBUTYLENE (Ⅱ)

Five kinds of polymer-anchored aminophosphine-rhodium complexes were synthesizedby ionic and covalent bonding methods. These anehored rhodium complexes synthesizedpossess good catalytic activity and aldehyde-formation selectivity in the hydroformylationof diisobutylene. The complexes anchored via covalent bonds on polymers showedexcellent reproducibility on recycling. After reaction, it indicated that the loss of rhodiumof the catalysts was very small as shown by analysis.     

聚合物键铑络合物的合成及其在催化二异丁烯氢甲酰化反应中的应用(Ⅱ)

本文用离子键键合法和共价键键合法合成了五种聚合物胺基膦配体键联的铑络合物催化剂,它们对二异丁烯的氢甲酰化反应有良好的催化活性和成醛选择性。用共价键键合法制得的聚合物催化剂有着良好的重复使用性能,反应后溶液中铑含量分析结果表明催化剂只有轻微的铑脱落。     

几种含氮聚合物配体键联羰基氯铑络合物的合成及其对二异丁烯的氢甲酰化反应的催化性能

铑膦均相络合物用于低级烯烃的氢甲酰化已经取得了工业规模的应用.但均相络合物存在着稳定性差、贵金属铑容易流失、催化剂回收及再生工艺复杂、腐蚀设备、污染产品以及不能用于高级烯烃的连续化羰基合成等缺点.如以不溶性功能聚合物作为配位体而制得的聚合物给合催化剂,一方面保持了络合催化的实质,另一方面又保持了多相催化剂