Original Reactivity of α-Diazo-β-ketoesters Catalyzed by CpRu Complexes
Keywords:Diazo compounds, Insertions, Metal carbenes, Oxonium ylide
Using α-diazo-β-ketoesters as reagents and combinations of CpRu fragments and diimine ligands as catalysts, a series of original transformations have been obtained that can be rationalized by the formation of metal carbenes and metal-bound ylide intermediates. Interesting 1,3-dioxole, enol-acetal and 1,4-dioxene motifs are obtained directly when the reactive mixture is reacted in presence of aldehydes or ketones, THF and epoxides.
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