LIGAND COMPOUND, CATALYST SYSTEM FOR OLEFIN OLIGOMERIZATION, AND METHOD FOR OLEFIN OLIGOMERIZATION USING THE SAME

摘要

The present invention relates to a ligand compound, a catalyst system for ethylene oligomerization, and a method for ethylene oligomerization using the same. The catalyst system for ethylene oligomerization according to the present invention not only has excellent catalytic activity but also shows more improved liquid olefin selectivity, and enables more effective preparation of an alpha-olefin through the oligomerization of ethylene because it is particularly possible to control the selectivity to 1-hexene or 1-octene.

主权项

1. A ligand compound represented by the following Chemical Formula 1: in Chemical Formula 1, A is a divalent functional group having a heteroatom; B1, B2, B3, B4, B5, B6, B7, and B8 are independently hydrogen, a substituted or unsubstituted C1-C10 alkyl group, a substituted or unsubstituted C4-C10 cycloalkyl group, a substituted or unsubstituted C6-C15 aryl group, a substituted or unsubstituted C7-C15 aralkyl group, or a substituted or unsubstituted C1-C10 alkoxy group; and C1 and C2 are independently hydrogen or —N[X(R3R4)]2, wherein at least one of C1 and C2 is —N[X(R3R4)]2, N is nitrogen, X is independently phosphorus (P), arsenic (As), or antimony (Sb), and R3 and R4 are independently a hydrocarbyl group or a heterohydrocarbyl group.