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Issue 7, 1977
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Optical resolution of tris(pentane-2,4-dionate) complexes of transition-metal ions

Abstract

Optically pure Δ(–)[Cr(pd)3] and partly resolved [Ru(pd)3] with the Δ(+)isomer in excess are afforded by an asymmetric synthesis from the corresponding (+)-tartrate complex (pd = pentane-2,4-dionate). Complexes rac-[M(pd)3](M = CoIII, CrIII, RhIII, or RuIII) partition between diethyl (+)-tartrate and (–)-α-pinene with a partial resolution of the optical isomers, the Λ isomer being generally the more soluble in the ester layer. The optical isomers of [Rh(pd)3] have been obtained from the racemic complex through the optically enriched fractions provided by the differential partitioning.

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Article information


J. Chem. Soc., Dalton Trans., 1977, 702-704
Article type
Paper

Optical resolution of tris(pentane-2,4-dionate) complexes of transition-metal ions

S. F. Mason, R. D. Peacock and T. Prosperi, J. Chem. Soc., Dalton Trans., 1977, 702
DOI: 10.1039/DT9770000702

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