10.1016/j.jorganchem.2007.10.015
The research focuses on the synthesis and characterization of new bridging aminoallylidene complexes through Olefin–aminocarbyne coupling in diiron and diruthenium complexes. The study explores the reaction of bridging aminocarbyne complexes with olefins such as acrylonitrile, methyl acrylate, styrene, and diethyl maleate, in the presence of Me3NO and NaH. These reactions yield the corresponding l-allylidene complexes, which are characterized by various analytical techniques including infrared (IR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and elemental analysis. The research also investigates further modifications of the bridging ligand through methylation and protonation reactions, as well as the potential for coordination with additional metal complexes through the nitrile functionality. The experiments involve the preparation of intermediate nitrile complexes and the formation of cationic complexes, with the structures of some compounds confirmed through X-ray diffraction studies. The research provides insights into the regio- and stereospecificity of the coupling reactions and the flexibility of the dinuclear M2(CO)2(Cp)2 frame in accommodating different bridging organic molecules.
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