Novel dioxomolybdenum complexes containing ONO-tridentate Schiff base ligands derived from 4-aminobenzohydrazide: synthesis, spectral characterization, and application as efficient homogeneous catalysts for selective sulfoxidation
作者:Hadi Kargar、Mehdi Fallah-Mehrjardi
DOI:10.1007/s13738-021-02282-0
日期:2021.12
Novel dioxomolybdenum Schiff base complexes, [MoO2(Ln)(CH3OH)], were synthesized by the reaction of MoO2(acac)2 and ONO donor Schiff base ligands (H2Ln) derived by the condensation of 4-aminobenzohydrazide and substituted salicylaldehydes. The synthesized ligands and their complexes were characterized by various spectroscopic techniques like FT-IR, 1H NMR, 13C NMR, and elemental analysis (CHN). The
新型二氧钼席夫碱配合物 [MoO 2 (L n )(CH 3 OH)] 是通过 MoO 2 (acac) 2和 ONO 供体席夫碱配体 (H 2 L n )的反应合成的,该配体由 4 -氨基苯甲酰肼和取代的水杨醛。合成的配体及其配合物通过各种光谱技术如 FT-IR、1 H NMR、13C NMR和元素分析(CHN)。复合物中中心金属原子周围的几何形状被认为是扭曲的八面体。此外,通过在叔丁基氢过氧化物存在下在回流条件下在 1,2-二氯乙烷中氧化芳基和烷基硫化物来研究配合物的催化效率。该方法具有收率高、反应时间短、选择性好等优点,可生成相应的亚砜而不会过度氧化成砜。