新型膦氮铑配合物的1-己烯氢甲酰化  

HYDROFORMYLATION OF 1-HEXENE BY NOVEL IMINOPHOSPHINE RHODIUM COMPLEXES

作　　者：彭庆蓉[1] 侯士聪[1] 袁友珠[2] 

机构地区：[1]中国农业大学理学院,北京100083 [2]厦门大学化学化工学院固体表面物理化学国家重点实验室,福建厦门361005

出　　处：《石油学报（石油加工）》2010年第5期725-729,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(20021002和20873108)资助

摘　　要：采用还原胺化法合成了新型膦氮配体铑配合物,并采用FT-IR和NMR(1H,13C,31P)进行结构表征。考察了水含量对膦氮配体铑配合物催化1-己烯氢甲酰化反应的影响,以及各种酸处理对催化剂循环使用的效果。结果表明,适量的水可提高膦氮配体铑配合物对1-己烯氢甲酰化反应的催化活性和选择性。反应后的膦氮配体铑配合物催化剂用适当有机酸萃取进入水相与产物分离,然后改变pH值使其从水相再进入新鲜有机溶剂中,实现催化剂在催化高碳烯烃氢甲酰化反应中的循环使用。Novel iminophosphine ligands（P-N ligands） were synthesized and characterized by IR and NMR（1H,13C,31P）.The effect of water content on 1-hexene hydroformylation catalyzed by P-N ligand-Rh complexes was investigated,at the same time,the recycling of the catalysts based on these iminophosphines was examined.The results revealed that the addition of certain amount of water into 1-hexene hydroformylation system,the catalytic activity and selectivity of P-N ligand-Rh complexes could be enhanced.After 1-hexene hydroformylation,the catalyst was extracted by organic acid into water and back extracted into fresh organic solvent by setting the pH of the aqueous phase to the point at which the complex was no longer water-soluble to realize its recycling.

关 键 词：膦氮配体 铑配合物 pH值依赖性相分离 1-己烯 氢甲酰化 

分 类 号：O643.32[理学—物理化学]