Yazar "Karaaslan, Emine Ozgul" seçeneğine göre listele

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  • Küçük Resim
    Öğe
    Chemoenzymatic synthesis of 2-brorno-6-hydroxy-3-methoxy-2-cyclohexen-1-one
    (Scientific Technical Research Council Turkey-Tubitak, 2007) Karaaslan, Emine Ozgul; Toka, Yasemin
    A chemoenzymatic synthesis of 2-bromo-6-hydroxy-3-methoxy-2-cyclohexen-1-one starting from cyclohexane-1,3-dione is reported. Manganese (III) acetate-mediated acetoxylation followed by the enzyme-mediated hydrolysis of alpha'-acetoxy enone affords hydroxy-enone 5 and enone 4 with high enantiomeric excesses in good yields.
  • [ X ]
    Öğe
    Synthesis, electrochemical and spectroscopic properties of ferrocene-based compounds
    (Springer Int Publ Ag, 2022) Onel, Gulce Taskor; Karaaslan, Emine Ozgul; Osken, Ipek; Saygili, Nezire
    Ferrocene derivatives have been synthesized by the Suzuki cross-coupling reaction of ferroceneboronic acid with various aryl/heteroaryl halides. The reactions yield ferrocenyl derivatives with overall yields varying between 35 and 98%. The derivatives have been characterized by (HNMR)-H-1, C-13 NMR, IR, HRMS and elemental analysis. The structure-property relationship has been investigated based on UVNis spectroscopy and cyclic voltammetry. Cyclic voltammetry studies revealed when the side group of ferrocenes were an electron-donating, lower oxidation was displayed. On the other hand, the strong electron-withdrawing group had a higher oxidation potential. [GRAPHICS] .