Oligomerization of Ethylene Using a Diphosphine Palladium Catalyst

被引：15

作者：

Bezier, David ^{[1
]}

Daugulis, Olafs ^{[1
]}

Brookhart, Maurice ^{[1
]}

机构：

[1] Univ Houston, Dept Chem, Ctr Polymer Chem, Houston, TX 77204 USA

来源：

ORGANOMETALLICS | 2017年 / 36卷 / 02期

关键词：

MOLECULAR-WEIGHT POLYETHYLENE; CARBON-MONOXIDE; OLEFIN POLYMERIZATION; POLAR MONOMERS; ALTERNATING COPOLYMERIZATION; ALPHA-OLEFINS; FUNCTIONAL POLYOLEFINS; BRANCHED POLYETHYLENE; PHOSPHINE-LIGANDS; NICKEL-CATALYSTS;

D O I：

10.1021/acs.organomet.6b00850

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The palladium diphosphine complex 4 converts ethylene to hyperbranched unsaturated oligomers (M-n approximate to 330 g/mol) at 22 degrees C. In addition to the high stability of this catalyst observed at temperatures up to 75 degrees C, an increase of the reaction temperature leads to a decrease in branching densities of the oligomers, in sharp contrast to the palladium and nickel diimine catalyst systems. One-pot oligomerizations/hydrogenations were carried out to form hyperbranched saturated oligomers.

引用

页码：443 / 447

页数：5

共 61 条

[1] Cationic η3-benzyl nickel compounds with diphosphine ligands as catalyst precursors for ethylene oligomerization/polymerization:: influence of the diphosphine bite angle [J].

Albers, I ;

Alvarez, E ;

Cámpora, J ;

Maya, CM ;

Palma, P ;

Sánchez, LJ ;

Passaglia, E .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2004, 689 (04) :833-839

[2] Living Polymerization of Ethylene and Copolymerization of Ethylene/Methyl Acrylate Using "Sandwich" Diimine Palladium Catalysts [J].

Allen, Kate E. ;

Campos, Jesus ;

Daugulis, Olafs ;

Brookhart, Maurice .

ACS CATALYSIS, 2015, 5 (01) :456-464

[3]

[Anonymous], 2004, ANGEW CHEM

[4]

[Anonymous], 2016, ANGEW CHEM

[5] Synthesis and reactivity of allyl nickel(II) N-heterocyclic carbene enolate complexes [J].

Benson, Stefan ;

Payne, Bridgett ;

Waymouth, Robert M. .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2007, 45 (16) :3637-3647

[6] Catalyst design and mechanistic aspects of the alternating copolymerisation of ethene and carbon monoxide by diphosphine-modified palladium catalysis [J].

Bianchini, C ;

Meli, A ;

Oberhauser, W .

DALTON TRANSACTIONS, 2003, (13) :2627-2635

[7] Alternating copolymerization of carbon monoxide and olefins by single-site metal catalysis [J].

Bianchini, C ;

Meli, A .

COORDINATION CHEMISTRY REVIEWS, 2002, 225 (1-2) :35-66

[8] Copolymerization of polar monomers with olefins using transition-metal complexes [J].

Boffa, LS ;

Novak, BM .

CHEMICAL REVIEWS, 2000, 100 (04) :1479-1493

[9] Cyclophane-based highly active late-transition-metal catalysts for ethylene polymerization [J].

Camacho, DH ;

Salo, EV ;

Ziller, JW ;

Guan, ZB .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (14) :1821-1825

[10] Designing late-transition metal catalysts for olefin insertion polymerization and copolymerization [J].

Camacho, Drexel H. ;

Guan, Zhibin .

CHEMICAL COMMUNICATIONS, 2010, 46 (42) :7879-7893

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