Novel and Efficient Palladium Complexes with β-Ketoiminate Ligands for the Polymerization of Norbornene

被引：0

作者：

Lee, Dong Hwan ^{[1
]}

Hwang, Yoon Joo ^{[1
]}

Yoon, Jin San ^{[2
]}

Choi, Moon Kun ^{[3
]}

Lee, Ik-Mo ^{[1
]}

机构：

[1] Inha Univ, Dept Chem, Inchon 402751, South Korea

[2] Inha Univ, Dept Polymer Engn, Inchon 402751, South Korea

[3] Yonsei Univ, Dept Chem, Seoul 120749, South Korea

来源：

BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2009年 / 30卷 / 03期

基金：

日本学术振兴会;

关键词：

Palladium complexes; beta-Ketoiminate ligands; Norbornene polymerization; Activators; Structures; CHEMICAL-VAPOR-DEPOSITION; VINYL-POLYMERIZATION; OLEFIN POLYMERIZATION; CATALYZED POLYMERIZATION; ADDITION POLYMERIZATION; CATIONIC PALLADIUM; NICKEL-COMPLEXES; ALKYL COMPLEXES; METAL-CATALYSTS; ETHYLENE;

D O I：

10.5012/bkcs.2009.30.3.636

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of the noble palladium complexes containing beta-ketoiminate ligands with internal bases, [Pd(eta(3)-allyl)(beta-ketoiminate)], [Pd(Me)(PPh3)(beta-ketoiminate)] and [Pd(Me)(beta-ketoiminate)], have been successfully prepared. Crystallographically determined structures showed that these complexes are distorted square planar and pendant bases of the beta-ketoiminate ligands fail to coordinate to the metal in the first two classes of complexes while bases do coordinate in the 3(rd) class complexes. These complexes are active towards norbornene polymerization on activation with H(OEt2)(2)BAr'(4) (Ar' = 3,5-bistrifluoromethylphenyl) and modified methylalumioxane (MMAO). MMAO is more efficient for the activation for polymerization. Generally, the polymerization activity increases with the following order; [Pd(allyl)(beta-ketoiminate)] < [Pd(Me)(PPh3)(beta-ketoiminate)] < [Pd(Me)(beta-ketoiminate)].

引用

页码：636 / 646

页数：11

共 68 条

[1] Transition metal catalyzed polymerisation of norbornene [J].