Enantiomerically pure zirconium and hafnium complexes containing a chiral cyclopentadiene derivative prepared from (-)-β-pinene

被引：7

作者：

Rousset, CJ ^{[1
]}

Iyer, S ^{[1
]}

Negishi, E ^{[1
]}

机构：

[1] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

TETRAHEDRON-ASYMMETRY | 1997年 / 8卷 / 23期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0957-4166(97)00588-0

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Chirally homogeneous (1S,8R)-3,5,9,9-tetramethyltricyclo[6.1.1.0(2,6)]deca-2,5-diene 1 has been prepared in five steps and 42% overall yield from (-)-beta-pinene; its successive treatment first with n-BuLi and then with ZrCl4 or HfCl4 provides, in high yields with high pi-facial selectivity, the corresponding dichlorobis{eta(5)-(1S,8R)-3,5,9,9-tetramethyltricyclo[6.1.1.0(2,6)]deca-3,5-dien-2-yl}zirconium or hafnium, respectively. (C) 1997 Elsevier Science Ltd. All rights reserved.

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页码：3921 / 3926

页数：6

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