乙烯四聚催化体系双膦胺配体的结构与性能  

Structures and properties of diphosphinoamine ligands in ethylene tetramerization catalyst system

作　　者：宁英男[1] 薛秋梅[1] 毛国梁[1] 姜涛[1] 

机构地区：[1]东北石油大学化学化工学院,黑龙江大庆163318

出　　处：《化工进展》2011年第5期1003-1007,共5页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(20972025);教育部"高校新世纪优秀人才支持项目"(NCET-07-0142);黑龙江省高校"新世纪优秀人才培养计划"(NCET-06-010)项目

摘　　要：简述了乙烯四聚反应制备1-辛烯催化体系的最新研究进展。指出乙烯四聚制1-辛烯催化体系中配体的结构和电子性是影响催化体系的活性和目的产物1-辛烯的选择性的主要因素。PNP配体中N取代基和P取代基的空间位阻和给电子效应都会对催化体系的活性和1-辛烯选择性产生影响。分析了由于取代基空间体积的增大和电负性的增强均使乙烯的进一步插入受阻,因而降低了催化体系的活性和1-辛烯的选择性。表明了设计合成新型的配体对提高催化体系活性和1-辛烯选择性至关重要。Recently progress of the catalytic system for ethylene tetramerization toward 1-octene is summarized.The structure and electronic property of PNP ligand are the mainly factors affecting the catalytic activity and the selectivity of the catalytic system.The bulk and electronic properties of N-substituented and P-substituented groups in PNP ligand have important effect on catalytic activity and selectivity to 1-octene.The substituent with bulkier and richer electronegativity will result in hindering further ethylene insertion,which induces lower catalytic activity and lower selectivity to 1-octene.The design and synthesis of a novel ligand is crucial to higher catalytic activity and higher selectivity to 1-octene.

关 键 词：乙烯四聚 1-辛烯 双膦胺配体 结构与性能 

分 类 号：TQ426[化学工程]