Issue 13, 1993

Novel photoinduced asymmetric synthesis of Λ-[Co(acac)3] from Co(acac)2(H2O)2 and Hacac catalysed by racemic complexes of Δ- and Λ-[Ru(menbpy)3]2+{menbpy = 4,4′-Di-[(1R,2S,5R)-(–)-menthoxycarbonyl)]-2,2′-bipyridine; Hacac = pentane-2,4-dione}

Abstract

The asymmetric synthesis of M(C3)-Λ-[Co(acac)3] has been realized by the oxidation of Co(acac)2(H2O)2 and Hacac with theracemicphotocatalystsof [Ru(menbpy)3]2+{menbpy = 4,4′-di-[(1R, 2S,5R)-(–)-menthoxycarbonyl]-2,2′-bipyridine} which predominates the helical chirality of M(C3)-Δ-[Ru(Menbpy)3]2+; the extent of the asymmetric induction by the helical photocatalyst has been enlarged by lowering the % v/v of EtOH-H2O or by raising the molar ratio of [Hacac]/[Co(acac)2(H2O)2].

Article information

Article type
Paper

J. Chem. Soc., Chem. Commun., 1993, 1070-1072

Novel photoinduced asymmetric synthesis of Λ-[Co(acac)3] from Co(acac)2(H2O)2 and Hacac catalysed by racemic complexes of Δ- and Λ-[Ru(menbpy)3]2+{menbpy = 4,4′-Di-[(1R,2S,5R)-(–)-menthoxycarbonyl)]-2,2′-bipyridine; Hacac = pentane-2,4-dione}

K. Ohkubo, T. Hamada and M. Watanabe, J. Chem. Soc., Chem. Commun., 1993, 1070 DOI: 10.1039/C39930001070

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