Cationic alkyl aluminium ethylene polymerization catalysts based on monoanionic N,N,N-pyridyliminoamide ligands

被引：210

作者：

Bruce, M ^{[1
]}

Gibson, VC ^{[1
]}

Redshaw, C ^{[1
]}

Solan, GA ^{[1
]}

White, AJP ^{[1
]}

Williams, DJ ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England

来源：

CHEMICAL COMMUNICATIONS | 1998年 / 22期

关键词：

D O I：

10.1039/a807950a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Treatment of the 2,6-bis(imino)pyridines {[2,6-(ArNCR)(2)C5H3N]} [R = H, Ar = 2,6-i-Pr2C6H3 or 2,4,6-Me3C6H2; R = Me, Ar = 2,6-i-Pr2C6H3] with AlMe3 at elevated temperature gives, via migration of a methyl group to the ligand backbone, the pseudo-five coordinate dimethylaluminium species {2-[ArNCR(Me)],6-(ArNCR)C5H3N}-AlMe2 (1a-c); upon treatment with B(C6F5)(3), 1a-c cleanly afford the cationic methyl complexes [{2-[ArNCR(Me)],6-(ArNCR)C5H3N}AlMe](+)[MeB(C6F5)(3)](-) (2a-c) which are active for ethylene polymerization.

引用

页码：2523 / 2524

页数：2

共 10 条

[1] Novel olefin polymerization catalysts based on iron and cobalt
Britovsek, GJP
Gibson, VC
Kimberley, BS
Maddox, PJ
McTavish, SJ
Solan, GA
White, AJP
Williams, DJ
[J]. CHEMICAL COMMUNICATIONS, 1998, (07) : 849 - 850
[2] Cationic aluminum alkyl complexes incorporating amidinate ligands. Transition-metal-free ethylene polymerization catalysts
Coles, MP
Jordan, RF
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (34) : 8125 - 8126
[3] Synthesis and structural characterisation of aluminium imino-amide and pyridyl-amide complexes: bulky monoanionic N,N chelate ligands via methyl group transfer
Gibson, VC
Redshaw, C
White, AJP
Williams, DJ
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1998, 550 (1-2) : 453 - 456
[4] GIBSON VC, UNPUB
[5] DIAZABUTADIENES AS LIGANDS .1. COMPOUNDS OF ALUMINUM - COORDINATION OF DIAZABUTADIENES TO AL(CH3)3 AND SUBSEQUENT INTRA-MOLECULAR INSERTION AND REARRANGEMENT REACTIONS LEADING TO (CH3)2ALR-N-CH(CH3)-C(R')=N-R(R'=H,CH3) AND (CH3)2ALR-N-CH2-C(CH3)=N-R
KLERKS, JM
STUFKENS, DJ
VANKOTEN, G
VRIEZE, K
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1979, 181 (02) : 271 - 283
[6] MARTIN H, 1992, MAKROMOL CHEM, V193, P1283
[7] Synthesis, structure, and reactivity of β-diketiminato aluminum complexes
Qian, BX
Ward, DL
Smith, MR
[J]. ORGANOMETALLICS, 1998, 17 (14) : 3070 - 3076
[8] Highly active iron and cobalt catalysts for the polymerization of ethylene
Small, BL
Brookhart, M
Bennett, AMA
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (16) : 4049 - 4050
[9] CATIONIC ZIRCONOCENE OLEFIN POLYMERIZATION CATALYSTS BASED ON THE ORGANO-LEWIS ACID TRIS(PENTAFLUOROPHENYL)BORANE - A SYNTHETIC, STRUCTURAL, SOLUTION DYNAMIC, AND POLYMERIZATION CATALYTIC STUDY
YANG, XM
STERN, CL
MARKS, TJ
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (22) : 10015 - 10031
[10] ZIEGLER K, 1960, LIEBIGS ANN CHEM, V629, P121

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