Volume 39, Issue 20 pp. 3695-3697
Communication

Efficient Enantioselective Extraction of Tris(diimine)ruthenium(II) Complexes by Chiral, Lipophilic TRISPHAT Anions

Jérôme Lacour Dr.

Jérôme Lacour Dr.

Département de Chimie Organique Université de Genève quai Ernest Ansermet 30, 1211 Genève 4 (Switzerland) Fax: (+41) 22-328-73-96

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Catherine Goujon-Ginglinger

Catherine Goujon-Ginglinger

Département de Chimie Organique Université de Genève quai Ernest Ansermet 30, 1211 Genève 4 (Switzerland) Fax: (+41) 22-328-73-96

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Sonya Torche-Haldimann

Sonya Torche-Haldimann

Département de Chimie Organique Université de Genève quai Ernest Ansermet 30, 1211 Genève 4 (Switzerland) Fax: (+41) 22-328-73-96

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Jonathan J. Jodry

Jonathan J. Jodry

Département de Chimie Organique Université de Genève quai Ernest Ansermet 30, 1211 Genève 4 (Switzerland) Fax: (+41) 22-328-73-96

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This work was supported by the Swiss National Science Foundation. We thank A. Pinto, J.-P. Saulnier, W. Kloeti, and E. Sandmeyer for NMR and MS measurements. TRISPHAT=tris(tetrachlorobenzenediolato)phosphate(V).

Abstract

Resolution of racemic water-soluble [Ru(diimine)3]Cl2 complexes 2 can be efficiently performed by asymmetric extraction with lipophilic TRISPHAT ions Δ-1. Phase separation allows the isolation of the Δ and Λ enantiomers of the cationic complexes with selectivities (d.r.) of up to 49:1 (see scheme).

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