Influence of Polymerization Degree of Poly-L-leucine Catalyst and Substituent Effect on the Juliá-Colonna Asymmetric Epoxidation of Benzalacetophenones
novel electrochemical method for the synthesis of α,β-epoxy ketones is reported. With KI as the redox mediator, methyl ketones reacted with aldehydes under peroxide- and transition metal-free electrolytic conditions and afforded α,β-epoxy ketones in one pot (36 examples, 52–90% yield). This safe and environmental-friendly method has a broad substrate scope and can readily provide a variety of α,β-epoxy