Cp-2*Zr(mu-C4H6)B(C6F5)(3), a first example of a stable unbridged homogeneous metallocene-betaine Ziegler catalyst system

被引:39
作者
Karl, J [1 ]
Erker, G [1 ]
Frohlich, R [1 ]
机构
[1] UNIV MUNSTER, INST ORGAN CHEM, D-48149 MUNSTER, GERMANY
关键词
homogeneous catalysis; metallocenes; Ziegler catalysts; betaine; polymerization;
D O I
10.1016/S0022-328X(96)06931-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Addition of the strong organometallic Lewis acid B(C6F5)(3) to (eta(4)-butadiene)ZrCp2* (Cp*=eta(5)-pentamethylcyclopentadienyl) yields the open-chain metallocene-hydrocarbylborate-betaine complex 2. The novel betaine complex 2 is an active homogeneous single component metallocene Ziegler catalyst for a-olefin polymerization. (C) 1997 Elsevier Science S.A.
引用
收藏
页码:59 / 62
页数:4
相关论文
共 48 条
[1]   1-SILA-3-METALLACYCLOBUTANES, PRECURSORS FOR THE GENERATION OF HIGHLY ELECTROPHILIC GROUP-4 METALLOCENE ALKYL CATIONS - SPECTROSCOPIC AND STRUCTURAL EVIDENCE OF A WEAKLY BOUND THF LIGAND IN [(C5ME5)2ZR(CH2SIME3)(THF)][BPH4] [J].
AMOROSE, DM ;
LEE, RA ;
PETERSEN, JL .
ORGANOMETALLICS, 1991, 10 (07) :2191-2198
[2]   METALLOCENES - CUSTOMIZED TOOLS FOR PREPARATION OF OLEFINS [J].
AULBACH, M ;
KUBER, F .
CHEMIE IN UNSERER ZEIT, 1994, 28 (04) :197-208
[3]   POLYMER NSR SPECTROSCOPY .2. THE HIGH RESOLUTION SPECTRA OF METHYL METHACRYLATE POLYMERS PREPARED WITH FREE RADICAL AND ANIONIC INITIATORS [J].
BOVEY, FA ;
TIERS, GVD .
JOURNAL OF POLYMER SCIENCE, 1960, 44 (143) :173-182
[4]   STEREOCHEMISTRY OF TRANSITION-METAL CYCLOOCTATETRAENYL COMPLEXES - MOLECULAR-STRUCTURE OF (ETA-CYCLOOCTATETRAENYL) (ETA-ALLYL)-TERT-BUTOXYZIRCONIUM [J].
BRAUER, DJ ;
KRUGER, C .
ORGANOMETALLICS, 1982, 1 (01) :204-207
[5]   STEREOCHEMISTRY OF TRANSITION-METAL CYCLOOCTATETRAENYL COMPLEXES - MOLECULAR-STRUCTURE OF (ETA-CYCLOOCTATETRAENYL) (ETA-3,ETA-3'-DECA-2,7-DIENE-4,9-DIYL)ZIRCONIUM [J].
BRAUER, DJ ;
KRUGER, C .
ORGANOMETALLICS, 1982, 1 (01) :207-210
[6]  
Brintzinger H. H., 1995, ANGEW CHEM, V107, P1255
[7]   STEREOSPECIFIC OLEFIN POLYMERIZATION WITH CHIRAL METALLOCENE CATALYSTS [J].
BRINTZINGER, HH ;
FISCHER, D ;
MULHAUPT, R ;
RIEGER, B ;
WAYMOUTH, RM .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1995, 34 (11) :1143-1170
[8]  
ERKER G, 1985, ADV ORGANOMET CHEM, V24, P1
[9]   THE REACTION OF (BUTADIENE)ZIRCONOCENE AND (BUTADIENE)HAFNOCENE WITH ETHYLENE [J].
ERKER, G ;
ENGEL, K ;
DORF, U ;
ATWOOD, JL ;
HUNTER, WE .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1982, 21 (12) :914-914
[10]   C-H-ACTIVATION BY REACTION OF (BUTADIENE)ZIRCONOCENES AND (BUTADIENE)HAFNOCENES WITH 9-BBN [J].
ERKER, G ;
NOE, R ;
WINGBERMUHLE, D ;
PETERSEN, JL .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1993, 32 (08) :1213-1215