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CN102164935A 含P-N-P配体的乙烯三聚催化剂及其用途 无效 - 撤回

含P-N-P配体的乙烯三聚催化剂及其用途
摘要：
一种新的P-N-P配体，该配体具有通式(Ph1)(Ph2)P-N-P(Ph3)(Ph4)R2，其中Ph1、Ph2、Ph3和Ph4各自为与磷基结合的苯基，R2选自氢、C1-20烃基和甲硅烷基，该配体可用于乙烯三聚。当与i)铬源和ii)活化剂例如甲基铝氧烷联合时，可用本发明配体制备含己烯和辛烯的混合物的低聚物产物。当在优选的反应条件下制备时，由该配体制备的己烯和辛烯含极低水平的内烯烃。(Ph1)(Ph2)P-N-P(Ph3)(Ph4)R2
摘要（英）：

A new P-N-P ligand having the general formula (Ph1)(Ph2)P-N-P(Ph3)(Ph4) R2 wherein each Of Ph1, Ph2, Ph3 and Ph4 is a phenyl group bonded to a phosphorus group, and R2 is selected from the group consisting of hydrogen, C1-20hydrocarbyl and silyl is useful in ethylene trimerization. In combination with i) a source of chromium and ii) an activator such as methylalumoxane, the ligand of this invention may be used to prepare an oligomer product that contains a mixture of hexenes and octenes The hexenes and octenes produced with this ligand contain very low levels of internal olefins when produced under preferred reaction conditions. (Ph1)(Ph2)P-N-P(Ph3)(Ph4)R2.

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