ASYMMETRIC COBALTACARBORANES [6,6'-MU-R-S(1,7-C2B9H10)2-2-CO] WITH A MONOSULFUR BRIDGE BETWEEN LIGANDS AND HPLC RESOLUTION OF THE ENANTIOMERS

Authors
PLESEK J GRUNER B FUSEK J VOTAVOVA H
Citation
J. Plesek et al., ASYMMETRIC COBALTACARBORANES [6,6'-MU-R-S(1,7-C2B9H10)2-2-CO] WITH A MONOSULFUR BRIDGE BETWEEN LIGANDS AND HPLC RESOLUTION OF THE ENANTIOMERS, Collection of Czechoslovak Chemical Communications, 58(12), 1993, pp. 2936-2943
Citations number
13
Categorie Soggetti
Chemistry
Journal title
Collection of Czechoslovak Chemical Communications → ACNP
ISSN journal
00100765
Volume
58
Issue
12
Year of publication
1993
Pages
2936 - 2943
Database
ISI
SICI code
0010-0765(1993)58:12<2936:AC[WAM>2.0.ZU;2-4
Abstract
On treatment of the [2-Co-(1,7-C2B9H11)2]- ion with elemental sulfur a nd AlCl3 only the racemic form of the [6,6'-mu-S(1,7-C2B9H10)2-2-Co]- ion is obtained in high yield. Methylation of this ion proceeds at the sulfur bridge giving rise to the zwitterionic complex [6,6'-mu-MeS(1, 7-C2B9H10)2-2-Co]. Constitution of both species has been established b y high-field NMR methods and confirmed by resolution to enantiomers by HPLC on chiral stationary phase.