CHIRAL RECOGNITION IN PLATINUM COMPLEXES OF 1,2-DIPHENYL-N,N'-BIS[(2,4,6-TRIMETHYLPHENYL)METHYL]-1,2-DIAMINOETHANE - STEREOSELECTIVE COORDINATION OF OLEFINS AND MOLECULAR-STRUCTURE OF A TRIGONAL BIPYRAMIDAL ADDUCT

被引：8

作者：

CUCCIOLITO, ME

JAMA, MA

GIORDANO, F

VITAGLIANO, A

DEFELICE, V

机构：

[1] UNIV NAPLES FEDERICO II,DIPARTIMENTO CHIM,I-80134 NAPLES,ITALY

[2] UNIV MOLISE,FAC AGR,I-86100 CAMPBOBASSO,ITALY

来源：

ORGANOMETALLICS | 1995年 / 14卷 / 03期

关键词：

D O I：

10.1021/om00003a016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Trigonal bipyramidal olefin-platinum complexes of the title chiral diamine (mestien) have been synthetized and their stereochemistry has been investigated by H-1 and C-13 NMR spectroscopy. The molecular structure of the complex PtClMe ((E)-ClCH = CHCl) (mestien) has been determined by X-ray diffraction analysis. The coordinated nitrogen atoms display a single configuration, and a high enantioface selectivity is observed in the coordination of prochiral olefins having a moderate lateral bulk. The selectivity can be correlated to the conformation adopted by the diamine ligand, which shows a remarkable similarity to those calculated for a proposed intermediate in the enantioselective dihydroxylation of olefins by osmium tetraoxide.

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页码：1152 / 1160

页数：9

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