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Öğe İmin Temelli C2-simetrik bis(fosfinit)-Ru(II) kompleksinin sentezi ve asimetrik transfer hidrojenasyon reaksiyonlarındaki etkinliği(Burdur Mehmet Akif Ersoy Üniversitesi, 2017) Elma Karakaş, Duygu; Saleh, Najmuldain Abdullah; Sünkür, Murat; Baysal, Akın; Aydemir, Murat; Durap, FeyyazÖğe Imine containing C2-Symmetric chiral half sandwich h6-p-cymene-Ru(II)- phosphinite complexes: Investigation of their catalytic activityin the asymmetric transfer hydrogenation of ketones(Journal of Molecular Structure, 2020-01-15) Aral, Tarık; Paşa, Salih; Kayan, Cezmi; Meriç, Nermin; Sünkür, Murat; Aydemir, Murat; Baysal, Akın; Durap, Feyyaz; Saleh, Najmuldain AbdullahNew chiral C2-symmetric bis(phosphinite) ligands containing imine group were synthesized from 1-({[(1R,2R)-2-{[(2-hydroxynaphthalen-1-yl)methylidene] amino}cyclohexyl]- imino}methyl)- naphthalen-2-ol and two equivalents of Ph2PCl, (i-Pr)2PCl or (Cy)2PCl, in high yields. Binuclear C2-symmetric half sandwich η6-p-cymene-Ru(II) complexes of the chiral phosphinite ligands were synthesized by treating of [Ru(η6-p-cymene)(μ-Cl)Cl]2 with the phosphinites in 1:1 M ratio in CH2Cl2. Their catalytic activities in asymmetric transfer hydrogenation (ATH) were investigated for the reaction of acetophenone derivatives with isopropyl alcohol. The corresponding optically active secondary alcohols were obtained in excellent levels of conversion (96–99%) and moderate enantioselectivity (up to 60% ee). Among three complexes investigated, complex 4 was the most efficient one.
