N-donor 2-(Sulfonamido)benzamide ligands, their palladium(II) coordination species and C–C coupling catalysis efficiencies
作者： Hammed Olawale Oloyede , Helmar Görls , Joseph Anthony Orighomisan Woods , Winfried Plass , Abiodun Omokehinde Eseola
DOI: 10.1016/J.MOLSTRUC.2019.07.054
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摘要: Abstract A series of synthetically accessible ligands based on new 2-(R-sulfonamido)benzamide have been prepared (R = methyl for H3M; R = 4-toly H3T and T2CN; R = 2,4,6-triisopropylphenyl H3iP HiPCN). The R-substituents were selected to vary in sizes. Allowing ligand palladium acetate stand solvent leads self-assembly the well-defined solvent- stoichiometry-controlled tetranuclear or hexanuclear coordination macromolecules Pd4(iP)2 (PdHiP)6, which analysed by X-ray crystallography. It was observed that active species Suzuki coupling catalysis could be stabilized these simple assessable N-donor as revealed turnover frequencies reaching 5500 h−1. Electronic features N-donors appear more important than steric properties.
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