Synthesis and characterization of new ruthenium(III) complexes derived from fluoreneamine-based Schiff base ligands and their catalytic activity in transfer hydrogenation of ketones
作者:Veerasamy Nagalakshmi、Raja Nandhini、Galmari Venkatachalam、Kasturi Balasubramani
DOI:10.1080/00958972.2020.1718665
日期:2020.1.17
Abstract An easy and convenient synthesis of a new series of octahedral ruthenium(III) complexes bearing Schiff base ligands of general formula [RuCl2(EPh3)2(L)] (where E = P, As and L = O,N-donor Schiff bases) has been reported. The composition of all complexes has been unequivocally characterized by spectral (IR, UV-vis, EPR) and ESI-MS techniques. The substituted Schiff base ligands behave as bidentate
摘要 一种带有通式 [RuCl2(EPh3)2(L)] 的 Schiff 碱配体的新系列八面体钌 (III) 配合物的简单方便的合成(其中 E = P, As 和 L = O,N-供体 Schiff基)已被报道。所有配合物的组成已通过光谱(IR、UV-vis、EPR)和 ESI-MS 技术明确表征。取代的席夫碱配体表现为双齿 O,N 供体,并通过酚氧、偶氮甲碱与钌配位。已证明配合物 1-6 可在 i-PrOH/KOH 存在下在 80°C 下催化直链、环状和芳香酮转移氢化为其相应的仲醇,转化率高达 99%。还报告了其他变量对转移氢化反应的影响,如溶剂、碱和催化剂负载。