Synthesis, structures and catalytic activities of half-sandwich ruthenium complexes based on Schiff Base ligands
作者:Wei-Guo Jia、Hui Zhang、Tai Zhang、Shuo Ling
DOI:10.1016/j.inoche.2016.02.001
日期:2016.4
A series of half-sandwich ruthenium(II) complexes containing Schiff-base ligands [Ru(p-cymene)LCl] [HL = (E)-4-X-2-((phenylimino)methyl)phenol, X = H (2a); X = CH3 (2b); X = Cl (2c) and X = Br (2d)] have been synthesized and fully characterized by 1H and 13C NMR spectra, elemental analyses and infrared spectrometry. Moreover, the molecular structures of rutheniumcomplexes 2b and 2c were confirmed by
摘要 一系列含有席夫碱配体 [Ru(p-cymene)LCl] [HL = (E)-4-X-2-((phenylimino)methyl)phenol, X = H (2a); X = CH3 (2b); X = Cl (2c) 和 X = Br (2d)] 已合成并通过 1H 和 13C NMR 光谱、元素分析和红外光谱进行充分表征。此外,钌配合物2b和2c的分子结构通过单晶X射线衍射方法得到证实。这些半夹心钌配合物是在硼氢化钠还原剂的存在下,在乙醇溶剂中高度催化硝基芳烃氢化成芳香苯胺的过程。值得注意的是,发现配合物 2c 是一种非常有效的还原硝基芳烃化合物的催化剂,具有广泛的官能团兼容性和底物范围。
Zr4+-Catalyzed Efficient Synthesis of α-Aminophosphonates
作者:J. S. Yadav、B. V. S. Reddy、K. Sarita Raj、K. Bhaskar Reddy、A. R. Prasad
DOI:10.1055/s-2001-18444
日期:——
Aldimines undergo nucleophilic addition with diethyl phosphite in the presence of a catalytic amount of zirconiumtetrachloride at ambienttemperature to afford the corresponding α-aminophosphonates in high yields with high selectivity.
The invention relates to pyrimidine derivatives according to formula (I),
and to organic electroluminescent devices comprising said pyrimidine derivatives as electron transport material.
这项发明涉及按照式(I)的嘧啶衍生物,以及包括所述嘧啶衍生物作为电子传输材料的有机电致发光器件。
Ruthenium (II) complexes of NO ligands: Synthesis, characterization and application in transfer hydrogenation of carbonyl compounds
diffraction studies. These Ruthenium (II) complexes 5–7 and 9 were used as catalysts for the transfer hydrogenation of a series of ketones and benzaldehyde in 2-propanol. Following the comparison of complex 9 with the other three azo containing complexes 5–7, it was observed that azo group has got remarkable increasing effect on the catalytic activity. The results showed that the complex 5 is efficient than
Urethanes are prepared by oxidative carbonylation of at least one amino compound in the presence of carbon monoxide, oxygen and organic, at least one hydroxyl-group-carrying compound. The carbonylation is carried out in the absence of halogen-containing promoters. The carbonylation is also carried out in the presence of a metal complex catalyst which contains neutral bidentate N-chelate ligands of the (N˜N) type, two monoanionic N,O-chelate ligands of the general type (N˜O)
−
or tetradentate dianionic chelate ligands (O˜N˜N˜O)
2−
.