BIPHENYL-BRIDGED METALLOCENES THAT ARE CHIRAL, CONFIGURATIONALLY STABLE, AND FREE OF DIASTEREOMERS

被引：76

作者：

HUTTENLOCH, ME

DIEBOLD, J

RIEF, U

BRINTZINGER, HH

GILBERT, AM

KATZ, TJ

机构：

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

[2] COLUMBIA UNIV,DEPT CHEM,NEW YORK,NY 10027

来源：

ORGANOMETALLICS | 1992年 / 11卷 / 11期

关键词：

D O I：

10.1021/om00059a024

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Formation of diastereomers is precluded when biphenyl-bridged bis(cyclopentadienyls) and transition-metal halides combine to give chiral ansa-metallocenes. These must be symmetrically substituted. Syntheses and X-ray diffraction analyses are reported for four biphenyl-bridged ansa-metallocenes: titanocene dichlorides 17 and 22, zirconocene dichloride 18, and ferrocene 13.

引用

页码：3600 / 3607

页数：8

共 64 条

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