Synthesis of racemic chiral-at-metal complexes of the Group 4 metals

被引：10

作者：

Alcock, NW ^{[1
]}

Clase, HJ ^{[1
]}

Duncalf, DJ ^{[1
]}

Hart, SL ^{[1
]}

McCamley, A ^{[1
]}

McCormack, PJ ^{[1
]}

Taylor, PC ^{[1
]}

机构：

[1] Univ Warwick, Dept Chem, Coventry CV4 7AL, W Midlands, England

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2000年 / 605卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

titanocene; zirconocene; hafnocene;

D O I：

10.1016/S0022-328X(00)00253-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A protocol for asymmetric synthesis of chiral-at-metal complexes is described, but enantiomerically-enriched products can not be isolated due to formation of complexes between the Group 4 metallocene products and the borane by-products. An efficient method for synthesis of racemic chiral-at-metal metallocenes, through lithium chloride catalysed ligand redistribution reactions, is described. Sterically-hindered racemic chiral-at-metal complexes are prepared by nucleophilic substitution of prochiral dichlorides. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：45 / 54

页数：10

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