New half-sandwich (η6-p-cymene)ruthenium(II) complexes with benzothiazole hydrazone Schiff base ligand: Synthesis, structural characterization and catalysis in transamidation of carboxamide with primary amines
作者:Subbarayan Vijayapritha、Periasamy Viswanathamurthi
DOI:10.1016/j.jorganchem.2020.121555
日期:2020.12
techniques (IR, NMR) and also by mass spectrometry. The solid state structure of the complex 3 reveals the coordination of p-cymene moieties with ruthenium(II) in a three-legged piano-stool geometry along with benzothiazole hydrazone Schiff base ligand in a monobasic bidentate fashion. The catalytic properties of the complexes were screened in transamidation of primary amide with amines after optimization
几个半夹心(η 6 -对-伞花烃)钌(II)苯并噻唑由腙Schiff碱负载的络合物合成的。新配合物具有通式的[Ru(η 6 -对-甲基异丙基苯)(L)CL](1 - 3)(L =水杨基((2-(苯并噻唑-2-基)亚肼基)甲基苯酚)(SAL-HBT ),2-(((2-(苯并噻唑-2-基)肼基)甲基)-6甲氧基苯酚)(VAN-HBT)或萘基-2-((2-(苯并噻唑-2-基)肼基)甲基苯酚)( NAP-HBT)。所有化合物均通过分析,光谱技术(IR,NMR)以及质谱进行了全面研究。配合物3的固态结构揭示了p-在三脚钢琴凳几何形状中与钌(II)并用苯并噻唑Schiff碱配体的二茂基部分以及二元二齿形式。在优化溶剂,取代基,时间和催化剂载量后,在伯酰胺与胺的氨基转移中筛选配合物的催化性能。结果表明,配合物3是羧酰胺与胺进行氨基转移的最有效催化剂。