ISOTOPE EFFECTS ASSOCIATED WITH ALPHA-OLEFIN INSERTION IN ZIRCONOCENE-BASED POLYMERIZATION CATALYSTS - EVIDENCE FOR AN ALPHA-AGOSTIC TRANSITION-STATE

被引：131

作者：

KRAULEDAT, H ^{[1
]}

BRINTZINGER, HH ^{[1
]}

机构：

[1] UNIV CONSTANCE, FAK CHEM, POSTFACH 5560, W-7750 CONSTANCE, GERMANY

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 1990年 / 29卷 / 12期

关键词：

D O I：

10.1002/anie.199014121

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The hydrodimerization of trans-and of cis-1-deuterio-1-hexene to the threo-and erythro-isomers of 6-deuterio-5-deuteriomethylundecane with the chiral precatalyst rac-[ethylenebis(tetrahydroindenyl)zirconium dichloride gave diastereomeric ratios of 2.4:1, which, depending on (E)- or (Z)-configuration of the diene, reverse. The results confirm observations by Pino et al that alpha-olefins insert into Zr-H and Zr-alkyl bonds with opposite enantiofacial orientation.

引用

页码：1412 / 1413

页数：2

共 15 条

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