Synthesis and reactivity of areneruthenium pyranone and pyridinone complexes
Abstract
The complexes [Ru(mes)Cl(L)](mes = 1,3,5-trimethylbenzene; HL = a pyranone or a pyridinone) have been synthesised and characterised. Reaction of [Ru(mes)Cl(L)](HL = 2-ethyl-3-hydroxypyran-4-one) with CO in the presence of AgBF4 gave [Ru(mes)L(CO)][BF4]. This carbonyl complex reacts with nucleophiles to give substitution products [Ru(mes)L(L′)][BF4](L′= H2O or H2NCH2Ph). One of the initial complexes, [Ru(mes)Cl(L)](HL = 2-methyl-3-hydroxypyran-4-one) and the carbonyl complex have been characterised by X-ray diffraction.