Abstract
Pt(II) and Ni(II) complexes of N,N-bis(diphenylphosphinomethyl)aminopropyltriethoxysilane [(CH3CH2O)3Si(CH2)3N(CH2PPh2)2] (DIPAPTES) and silica supported [SiO2–(DIPAPES)] ligands have been synthesized under nitrogen atmosphere using Schlenk method and characterized by using atomic absorption, FT-IR, NMR (1H and 31P) and elemental analysis techniques. All the complexes were used as catalysts for the oxidation of 2-methyl naphthalene (2MN) to 2-methyl-1,4-naphthoquinone (vitamin K3, menadione, 2MNQ) using hydrogen peroxide as a clean and cheap oxidant. [Pt–(DIPAPTES)Cl2] and supported complex [SiO2–(DIPAPES)–PtCl2] showed medium catalytic activity whereas Ni(II) complexes did not show any catalytic activity for the selective oxidation of 2-methyl naphthalene to 2-methyl-1,4-naphthoquinone.
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We would like to thank to Oxyvit Kimya San.Tic.A.Ş. for their all supports. The authors also thank to Çukurova University (Project No: FEF2007D007) and Sütçü İmam University for financial support.
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Uruş, S., Keleş, M. & Serindağ, O. Synthesis of Silica-Supported Platinum(II) and Nickel(II) Complexes of Bis(Diphenylphosphinomethyl)Amino Ligand: Applications as Catalysts for the Synthesis of 2-Methyl-1,4-Naphthoquinone (Vitamin K3). J Inorg Organomet Polym 20, 152–160 (2010). https://doi.org/10.1007/s10904-010-9328-y
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DOI: https://doi.org/10.1007/s10904-010-9328-y