Ligand compound, catalyst system for olefin oligomerization, and method for oligomerizing olefins using the same

Patent metadata

Field	Value
Publication number	US-10131723-B2
Application number	US-201615528686-A
Country	US
Kind code	B2
Filing date	Sep 1, 2016
Priority date	Sep 2, 2015
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

The present invention relates to a compound represented by the chemical formula 1, a catalyst system for olefin oligomerization comprising the same, and a method for oligomerizign olefins using the same, and the catalyst system for olefin oligomerization according to the present invention has excellent catalytic activity as well as high selectivity for 1-hexene or 1-octene, thereby enabling more efficient preparation of alpha-olefins.

First claim

The invention claimed is:

1. A compound represented by the following Chemical Formula 1:

in Chemical Formula 1,
R 1 to R 4 are each independently C 6-20 aryl unsubstituted or substituted with C 1-20 alkyl, and
R 5 is C 6-20 aryl substituted with a vinyl group.

2. The compound of claim 1 ,
wherein R 1 to R 4 are each independently phenyl or naphthyl.

3. The compound of claim 1 ,
wherein R 1 to R 4 are identical to one another.

4. The compound claim 3 ,
wherein R 1 to R 4 are phenyl.

5. The compound of claim 1 ,
wherein R 5 is phenyl substituted with a vinyl group.

6. The compound of claim 5 ,
wherein R 5 is 4-vinylphenyl.

7. The compound of claim 1 ,
wherein the compound is

8. A catalyst system for olefin oligomerization, comprising:the compound according to claim 1 ; a source of transition metal; and a cocatalyst.

9. The catalyst system for olefin oligomerization of claim 8 ,
wherein the source of transition metal is at least one selected from the group consisting of chromium(III)acetylacetonate, chromium trichloride tris-tetrahydrofuran, chromium(III-2-ethylhexanoate, chromium(III)tris-(2,2,6,6-tetramethyl-3,5-heptanedionate), chromium(III)benzoylacetonate, chromium (III) hexafluoro-2,4-pentanedionate, and chromium(III)acetate hydroxide.

10. The catalyst system of claim 8 ,
wherein the cocatalyst is at least one selected from the group consisting of the compounds represented by the following Chemical Formulas 2 to 4:
—[Al(R 6 )—O] c —   [Chemical Formula 2]

in Chemical Formula 2,
R 6 is each independently halogen, C 1-20 alkyl, or C 1-20 haloalkyl, and
C is an integer of 2 or greater,
D(R 7 ) 3   [Chemical Formula 3]

in Chemical Formula 3,
D is aluminum or boron, and
R 7 is each independently hydrogen, halogen, C 1-20 hydrocarbyl, or C 1-20 hydrocarbyl substituted with halogen,
[L-H] + [Q(E) 4 ] −   [Chemical Formula 4]

in Chemical Formula 4,
L is a neutral Lewis base,
[L-H] + is a Brønsted acid,
Q is B 3+ or Al 3+ , and
E is each independently C 6-20 aryl or C 1-20 alkyl, wherein the C 6-20 aryl or C 1-20 alkyl is unsubstituted or substituted with at least one substituent selected from the group consisting of halogen, C 1-20 alkyl, C 1-20 alkoxy, and phenoxy.

11. A method for olefin oligomerization, comprising multimenzmg olefins in the presence of the catalyst system for olefin oligomerization of claim 8 .

Assignees

• Lg Chemical Ltd

Inventors

• Lee Yong Ho
• Im Seul Ki
• Shin Eun Ji
• Lee Ki Soo
• Park Jin Young
• Sa Seok Pil
• Hong Yoon Ki

Classifications

• B01J31/14

  of aluminium or boron · CPC title

• C08F4/602

  Component covered by group C08F4/60 with an organo-aluminium compound {(C08F4/60003 - C08F4/60196 take precedence)} · CPC title

• C08F10/00

  Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond · CPC title

• B01J31/0239

  Quaternary ammonium compounds · CPC title

• C07C2531/24

  Phosphines · CPC title