Ethylene tetramerization with cationic chromium(I) complexes

Adam J. Rucklidge; David S. McGuinness; Robert P. Tooze; Alexandra M. Z. Slawin; Jeremie D. A. Pelletier; Martin J. Hanton; Paul B. Webb

doi:10.1021/om0701975

Ethylene tetramerization with cationic chromium(I) complexes

Adam J. Rucklidge, David S. McGuinness, Robert P. Tooze, Alexandra M. Z. Slawin, Jeremie D. A. Pelletier, Martin J. Hanton, Paul B. Webb

Research output: Contribution to journal › Article › peer-review

Abstract

Various [Cr(CO)(4)(P boolean AND P)](+) complexes have been synthesized and tested for the tetramerization of ethylene to give principally 1-octene. The effect of the anion has been investigated, and it has been found that for successful catalysis an extremely weakly coordinating anion is required. This study shows that when [Al(OC(CF3)(3))(4)](-) is employed as the anion, along with triethylaluminum and PNPiPr as the coordinated diphosphine, the system is active for the tetramerization of ethylene. This is the first example of Cr-I being used as a catalyst precursor for selective tetramerization and gives evidence toward the catalytic cycle acting through a Cr-I -> Cr-III cationic mechanism.

Original language	English
Pages (from-to)	2782-2787
Number of pages	6
Journal	Organometallics
Volume	26
DOIs	https://doi.org/10.1021/om0701975
Publication status	Published - 7 May 2007

Keywords

METAL-CARBONYL DERIVATIVES
TRIMERIZATION CATALYSTS
LIGANDS
ACTIVATION
1-HEXENE
MONOXIDE
SYSTEM
ETHENE

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title = "Ethylene tetramerization with cationic chromium(I) complexes",

abstract = "Various [Cr(CO)(4)(P boolean AND P)](+) complexes have been synthesized and tested for the tetramerization of ethylene to give principally 1-octene. The effect of the anion has been investigated, and it has been found that for successful catalysis an extremely weakly coordinating anion is required. This study shows that when [Al(OC(CF3)(3))(4)](-) is employed as the anion, along with triethylaluminum and PNPiPr as the coordinated diphosphine, the system is active for the tetramerization of ethylene. This is the first example of Cr-I being used as a catalyst precursor for selective tetramerization and gives evidence toward the catalytic cycle acting through a Cr-I -> Cr-III cationic mechanism.",

keywords = "METAL-CARBONYL DERIVATIVES, TRIMERIZATION CATALYSTS, LIGANDS, ACTIVATION, 1-HEXENE, MONOXIDE, SYSTEM, ETHENE",

author = "Rucklidge, {Adam J.} and McGuinness, {David S.} and Tooze, {Robert P.} and Slawin, {Alexandra M. Z.} and Pelletier, {Jeremie D. A.} and Hanton, {Martin J.} and Webb, {Paul B.}",

year = "2007",

month = may,

day = "7",

doi = "10.1021/om0701975",

language = "English",

volume = "26",

pages = "2782--2787",

journal = "Organometallics",

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publisher = "American Chemical Society (ACS)",

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TY - JOUR

T1 - Ethylene tetramerization with cationic chromium(I) complexes

AU - Rucklidge, Adam J.

AU - McGuinness, David S.

AU - Tooze, Robert P.

AU - Slawin, Alexandra M. Z.

AU - Pelletier, Jeremie D. A.

AU - Hanton, Martin J.

AU - Webb, Paul B.

PY - 2007/5/7

Y1 - 2007/5/7

N2 - Various [Cr(CO)(4)(P boolean AND P)](+) complexes have been synthesized and tested for the tetramerization of ethylene to give principally 1-octene. The effect of the anion has been investigated, and it has been found that for successful catalysis an extremely weakly coordinating anion is required. This study shows that when [Al(OC(CF3)(3))(4)](-) is employed as the anion, along with triethylaluminum and PNPiPr as the coordinated diphosphine, the system is active for the tetramerization of ethylene. This is the first example of Cr-I being used as a catalyst precursor for selective tetramerization and gives evidence toward the catalytic cycle acting through a Cr-I -> Cr-III cationic mechanism.

AB - Various [Cr(CO)(4)(P boolean AND P)](+) complexes have been synthesized and tested for the tetramerization of ethylene to give principally 1-octene. The effect of the anion has been investigated, and it has been found that for successful catalysis an extremely weakly coordinating anion is required. This study shows that when [Al(OC(CF3)(3))(4)](-) is employed as the anion, along with triethylaluminum and PNPiPr as the coordinated diphosphine, the system is active for the tetramerization of ethylene. This is the first example of Cr-I being used as a catalyst precursor for selective tetramerization and gives evidence toward the catalytic cycle acting through a Cr-I -> Cr-III cationic mechanism.

KW - METAL-CARBONYL DERIVATIVES

KW - TRIMERIZATION CATALYSTS

KW - LIGANDS

KW - ACTIVATION

KW - 1-HEXENE

KW - MONOXIDE

KW - SYSTEM

KW - ETHENE

UR - http://www.scopus.com/inward/record.url?scp=34249045321&partnerID=8YFLogxK

U2 - 10.1021/om0701975

DO - 10.1021/om0701975

M3 - Article

SN - 0276-7333

VL - 26

SP - 2782

EP - 2787

JO - Organometallics

JF - Organometallics

ER -

Ethylene tetramerization with cationic chromium(I) complexes

Abstract

Keywords

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