Department of Chemistry, Periyar University, Salem, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2011 Dec;83(1):297-303. doi: 10.1016/j.saa.2011.08.033. Epub 2011 Aug 27.
Ruthenium(II) hydrazone Schiff base complexes of the type [RuCl(CO)(B)(L)] (were B=PPh(3), AsPh(3) or Py; L=hydrazone Schiff base ligands) were synthesized from the reactions of hydrazone Schiff base ligand (obtained from isonicotinoylhydrazide and different hydroxy aldehydes) with [RuHCl(CO)(EPh(3))(2)(B)] (where E=P or As; B=PPh(3), AsPh(3) or Py) in 1:1 molar ratio. All the new complexes have been characterized by analytical and spectral (FT-IR, electronic, (1)H, (13)C and (31)P NMR) data. They have been tentatively assigned an octahedral structure. The synthesized complexes have exhibited catalytic activity for oxidation of benzyl alcohol to benzaldehyde and cyclohexanol to cyclohexanone in the presence of N-methyl morpholine N-oxide (NMO) as co-oxidant. They were also found to catalyze the transfer hydrogenation of aliphatic and aromatic ketones to alcohols in KOH/Isopropanol.
钌(II)腙席夫碱配合物的类型 [RuCl(CO)(B)(L)](其中 B=PPh(3)、AsPh(3)或 Py;L=腙席夫碱配体)是由腙席夫碱配体(由异烟酰基腙和不同的羟基醛合成)与 [RuHCl(CO)(EPh(3))(2)(B)](其中 E=P 或 As;B=PPh(3)、AsPh(3)或 Py)以 1:1 摩尔比反应得到的。所有新配合物均通过分析和光谱(FT-IR、电子、(1)H、(13)C 和(31)P NMR)数据进行了表征。它们被暂定分配为八面体结构。在 N-甲基吗啉 N-氧化物 (NMO) 作为共氧化剂存在下,合成的配合物表现出催化苄醇氧化为苯甲醛和环己醇氧化为环己酮的活性。它们还被发现能够在 KOH/异丙醇中催化脂肪族和芳香族酮的转移氢化反应生成醇。