Trinuclear ruthenium carbonyl complexes with salicylaldimine ligands as efficient catalysts for the oxidation of secondary alcohols
作者:Zhiqiang Hao、Ying Li、Zhihong Ma、Zhangang Han、Jin Lin、Guo-Liang Lu
DOI:10.1016/j.jorganchem.2020.121647
日期:2021.1
A series of novel trinuclear ruthenium carbonyl complexes [µ-ƞ2-2-OC6H4-CH=N-Ar)]2Ru3(CO)8 [Ar = Ph (8), C6H4-4-Me (9), C6H4-4-CF3 (10), C6H4-4-Cl (11), C6H3-2,6-Me2 (12), C6H3-2,6-Et2 (13)] and [µ-ƞ2-2-OC6H4-CH=N-C6H3-2,6-iPr2]Ru3(CO)9 (14) were designed and synthesized. All the seven novel complexes were fully characterized by elemental analysis, IR and NMR spectroscopy. Molecular structures of 8
一系列的新颖三核钌羰基配合物[ μ - ƞ 2 -2-OC 6 H ^ 4 -CH = N-AR)] 2的Ru 3(CO)8 [Ar为Ph(上8),C 6 H ^ 4 -4-箱(9),C 6 H ^ 4 -4-CF 3(10),C 6 H ^ 4 -4-CL(11),C 6 H ^ 3 -2,6-ME 2(12),C 6 H ^ 3 - 2,6-Et 2(13)]和[ μ - ƞ 2 -2-OC 6 H ^ 4 -CH = NC 6 H ^ 3 -2,6-我镨2 ]的Ru 3(CO)9(14),设计并合成。通过元素分析,IR和NMR光谱对7种新型配合物进行了全面表征。通过单晶X射线衍射进一步证实了8、11、13和14的分子结构。研究了这些配合物在仲醇氧化中的催化性能,发现这些配合物与N-甲基吗啉-N-氧化物(NMO)对仲醇的氧化显示出高催化活性,从而以优异的收率得到相应的羰基化合物。