Arene ruthenium bis-saccharinato complexes: Synthesis, molecular structure and catalytic oxidation properties in aqueous solution

被引:15
|
作者
Trieu-Tien Thai [1 ]
Therrien, Bruno [1 ]
Suess-Fink, Georg [1 ]
机构
[1] Univ Neuchatel, Inst Chim, CH-2009 Neuchatel, Switzerland
基金
瑞士国家科学基金会;
关键词
Arene; Ruthenium; Saccharinato; Alcohol oxidation; tert-Butyl hydroperoxide; Aqueous solution; TERT-BUTYL HYDROPEROXIDE; HYDROGEN-PEROXIDE; SELECTIVE OXIDATION; AEROBIC OXIDATION; SECONDARY ALCOHOLS; ALLYLIC ALCOHOLS; METAL CATALYSIS; MOLYBDENUM; KETONES; ACTIVATION;
D O I
10.1016/j.jorganchem.2011.06.033
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Arene ruthenium complexes [(eta(6)-arene)Ru(sacc)(2)(OH2)] (arene - para-cymeme, benzene) containing an aqua and two saccharinato ligands have been synthesized from [(eta(6)-arene) RuCl2](2) and sodium saccharinate in a water-ethanol mixture (1:1). The aqua complex [(eta(6)-MeC6H4Pri)Ru(sacc)(2)(OH2)] reacts with acetonitrile to give the acetonitrile complex [(eta(6)-MeC6H4Pri)Ru(sacc)(2)(NCMe)]. The corresponding benzene derivative [(eta(6)-C6H6) Ru(sacc)(2)(NCMe)] was obtained from [(eta(6)-C6H6)RuCl2](2) and saccNa in an acetonitrile-methanol mixture (1:1). All new complexes show a piano-stool geometry with two monohapto nitrogen-bonded saccharinato ligands in addition to a H2O or MeCN ligand. All complexes of the type [(eta(6)-arene) Ru(sacc)(2)(OH2)] and [(eta(6)-arene) Ru(sacc)(2)(NCMe)] were found to catalyze the oxidation of secondary alcohols with tert-butyl hydroperoxide ((BuOOH)-O-t) to give the corresponding ketones in aqueous solution. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码:3285 / 3291
页数:7
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