Synthesis and structural characterization of facile ruthenium(II) hydrazone complexes: Efficient catalysts in α-alkylation of ketones with primary alcohols via hydrogen auto transfer
作者:Subbarayan Vijayapritha、Kaliyappan Murugan、Periasamy Viswanathamurthi、Paranthaman Vijayan、Chinnasamy Kalaiarasi
DOI:10.1016/j.ica.2020.119887
日期:2020.11
successfully applied as catalysts in α -alkylation of aliphatic and aromatic ketones with alcohols via borrowing hydrogen strategy. Various parameters such as base, solvent, temperature, time and catalyst loading on the catalytic activity were analyzed. From the results, the catalyst 1 was found to be the best catalyst for α-alkylation reaction to obtain excellent yield. The catalytic system has a broad
摘要为了开发新的配合物,新的Ru(II)配合物(1-3)由[Ru(SAL-HBT)(CO)(AsPh3)2],[Ru(VAN) -HBT)(CO)(AsPh3)2]和[Ru(NAP-HBT)(CO)Cl(AsPh3)2] [SAL-HBT =(水杨基((2-(苯并噻唑-2基)肼基)甲基苯酚)), VAN-HBT = 2-(((2-(苯并噻唑-2-基)肼基)甲基)-6甲氧基苯酚)和NAP-HBT =萘基-2-((2-(苯并噻唑-2-基)肼基)甲基苯酚)合成。通过令人满意的元素分析,各种光谱技术(IR,(1H,13C)NMR)以及质谱法确定了它们的身份。钌(II)离子具有扭曲的八面体几何形状的六配位体。在配合物1和2中,配体通过形成N 1 N供体5元和N 2 O供体6元螯合环而以双阴离子三齿形式配位。然而,在配合物3中,配体通过形成N 1 N供体五元环以单阴离子二齿形式配位。新的钌(II)羰基