Preparation and characterization of a zwitterionic (iminopyrrolyl) zirconium complex with benzylaluminate anion and its catalytic performance for 1-hexene polymerization

被引：18

作者：

Tsurugi, Hayato ^{[1
]}

Mashima, Kazushi ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Dept Chem, Toyonaka, Osaka 5608531, Japan

来源：

ORGANOMETALLICS | 2006年 / 25卷 / 22期

关键词：

D O I：

10.1021/om060692l

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

An alkyl abstraction from (DIP-pyr)Zr(CH2Ph)(3) (DIP-pyr = 2-{N-(2,6-diisopropylphenyl)iminomethyl}pyrrolyl) using Al(C6F5)(3) affords a zwitterionic dibenzyl complex, [(DIP-pyr) Zr(CH2Ph)(2)][eta(6)- PhCH2Al(C6F5)(3)] (2), which becomes an active catalyst for 1-hexene polymerization. The similar reaction by using B( C6F5) 3 affords a less stable adduct. The more stable character of 2 is ascribed to the tight ion-pair formation between the zirconium cation and the benzyl aluminate anion.

引用

页码：5210 / 5212

页数：3

共 69 条

[1] TRIS(PENTAFLUOROPHENYL)ALANE - A NOVEL ALUMINUM ORGANYL [J].

BELGARDT, T ;

STORRE, J ;

ROESKY, HW ;

NOLTEMEYER, M ;

SCHMIDT, HG .

INORGANIC CHEMISTRY, 1995, 34 (14) :3821-3822

[2] SYNTHESIS OF BASE-FREE CATIONIC ZIRCONIUM METHYL AND BENZYL COMPLEXES - THE CRYSTAL AND MOLECULAR-STRUCTURE OF (C5H3(SIME3)2-1,3)2ZRME(MU-ME)B(C6F5)3 [J].

BOCHMANN, M ;

LANCASTER, SJ ;

HURSTHOUSE, MB ;

MALIK, KMA .

ORGANOMETALLICS, 1994, 13 (06) :2235-2243

[3]

Bochmann M, 1998, ORGANOMETALLICS, V17, P5908

[4] ELECTRON-DEFICIENT GROUP-IV METAL ALKYL CATIONS, AND THE SYNTHESIS OF ZR(CH2PH)3(ETA-6-C6H5)BPH3 - A FLUXIONAL ARENE PI-COMPLEX OF A D0 METAL [J].

BOCHMANN, M ;

KARGER, G ;

JAGGAR, AJ .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1990, (15) :1038-1039

[5] ansa-zirconocene ester enolates:: Synthesis, structure, reaction with organo-Lewis acids, and application to polymerization of methacrylates [J].

Bolig, AD ;

Chen, EYX .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (15) :4897-4906

[6] Isotactic-b-syndiotactic stereoblock poly(methyl methacrylate) by chiral metalllocene/Lewis acid hybrid catalysts [J].

Bolig, AD ;

Chen, EYX .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (20) :5612-5613

[7] Nonconventional catalysts for isotactic propene polymerization in solution developed by using high-throughput-screening technologies [J].

Boussie, Thomas R. ;

Diamond, Gary M. ;

Goh, Christopher ;

Hall, Keith A. ;

LaPointe, Anne M. ;

Leclerc, Margarete K. ;

Murphy, Vince ;

Shoemaker, James A. W. ;

Turner, Howard ;

Rosen, Robert K. ;

Stevens, James C. ;

Alfano, Francesca ;

Busico, Vincenzo ;

Cipullo, Roberta ;

Talarico, Giovanni .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (20) :3278-3283

[8] First isolation and structural characterization of triarylaluminum-water and -methanol complexes [J].

Chakraborty, D ;

Chen, EYX .

ORGANOMETALLICS, 2003, 22 (01) :207-210

[9] Chlorobis(pentafluorophenyl)alane: synthesis, crystal structure, and polymerization catalysis [J].

Chakraborty, D ;

Chen, EYX .

INORGANIC CHEMISTRY COMMUNICATIONS, 2002, 5 (09) :698-701

[10] Stereospecific polymerization of methacrylates by metallocene and related catalysts [J].

Chen, EYX .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2004, 42 (14) :3395-3403

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