US 2026/0257213 A1Published application

Ligand Compound, Organic Chromium Compound, and Catalyst Compositions Containing the Same

AssigneeLG Chem, Ltd.

InventorsWon Taeck Lim, Yeon Ho Cho, Seok Sun Kim, Seung Hwan Jung, Eun Ji Shin, Seok Pil Sa, Tae Hee Kim, Se Hye Min

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Abstract

Provided are a ligand compound having Chemical Formula 1, which exhibits high 1-hexene and 1-octene selectivity while exhibiting high catalytic activity and enables ethylene oligomerization with excellent efficiency, an organic chromium compound, a catalyst composition containing the organic chromium compound, and a method for ethylene oligomerization using the same: wherein all the variables are described herein.

Claims15

Dependent claims

A ligand compound represented by Chemical Formula 1:

in Chemical Formula 1,
R1 is a halogen group, an alkyl group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkoxy group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkylthio group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkyl sulfonate group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, a trialkylsilyl group, wherein alkyl groups of the trialkylsilyl group are each independently an alkyl group having 1 to 10 carbon atoms, or binds to R6 to form a monocyclic or polycyclic aromatic hydrocarbon ring or a monocyclic or polycyclic heterocyclic ring,
R6 is hydrogen in a case where R6 does not bind to R1 to form a monocyclic or polycyclic aromatic hydrocarbon ring or a polycyclic heterocyclic ring,
R2 and R3 are each independently hydrogen, an alkyl group having 5 to 20 carbon atoms, a cycloalkyl group having 5 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms, an arylalkoxyalkyl group having 7 to 30 carbon atoms, or a trialkylsilyl group, wherein alkyl groups of the trialkylsilyl group are each independently an alkyl group having 1 to 10 carbon atoms, provided that R2 and R3 are not hydrogen at the same time,
R4 is a halogen group, an alkyl group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkoxy group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkylthio group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkyl sulfonate group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, a trialkylsilyl group, wherein (alkyl groups of the trialkylsilyl group are each independently an alkyl group having 1 to 10 carbon atoms), or binds to R7 to form a monocyclic or polycyclic aromatic hydrocarbon ring or a monocyclic or polycyclic heterocyclic ring,
R7 is hydrogen in a case where R7 does not bind to R4 to form a monocyclic or polycyclic aromatic hydrocarbon ring or a monocyclic or polycyclic heterocyclic ring, and
R5 is an alkyl group having 1 to 20 carbon atoms, an alkyl group having 1 to 20 carbon atoms, which is substituted with an aryl group having 6 to 10 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, or a cycloalkyl group having 5 to 10 carbon atoms, which is fused with an aryl group having 6 to 10 carbon atoms.

4 more elements

Dependencies are inferred from the claim text.

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Abstract

A ligand compound represented by Chemical Formula 1:

in Chemical Formula 1,
R1 is a halogen group, an alkyl group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkoxy group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkylthio group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkyl sulfonate group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, a trialkylsilyl group, wherein alkyl groups of the trialkylsilyl group are each independently an alkyl group having 1 to 10 carbon atoms, or binds to R6 to form a monocyclic or polycyclic aromatic hydrocarbon ring or a monocyclic or polycyclic heterocyclic ring,
R6 is hydrogen in a case where R6 does not bind to R1 to form a monocyclic or polycyclic aromatic hydrocarbon ring or a polycyclic heterocyclic ring,
R2 and R3 are each independently hydrogen, an alkyl group having 5 to 20 carbon atoms, a cycloalkyl group having 5 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms, an arylalkoxyalkyl group having 7 to 30 carbon atoms, or a trialkylsilyl group, wherein alkyl groups of the trialkylsilyl group are each independently an alkyl group having 1 to 10 carbon atoms, provided that R2 and R3 are not hydrogen at the same time,
R4 is a halogen group, an alkyl group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkoxy group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkylthio group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, an alkyl sulfonate group having 1 to 10 carbon atoms, which is substituted with a halogen group or unsubstituted, a trialkylsilyl group, wherein (alkyl groups of the trialkylsilyl group are each independently an alkyl group having 1 to 10 carbon atoms), or binds to R7 to form a monocyclic or polycyclic aromatic hydrocarbon ring or a monocyclic or polycyclic heterocyclic ring,
R7 is hydrogen in a case where R7 does not bind to R4 to form a monocyclic or polycyclic aromatic hydrocarbon ring or a monocyclic or polycyclic heterocyclic ring, and
R5 is an alkyl group having 1 to 20 carbon atoms, an alkyl group having 1 to 20 carbon atoms, which is substituted with an aryl group having 6 to 10 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, or a cycloalkyl group having 5 to 10 carbon atoms, which is fused with an aryl group having 6 to 10 carbon atoms.

4 more elements