The Chemistry of α,β-Ditosyloxyketones: Novel Routes for the Synthesis of Desoxybenzoins and α-Aryl-β-ketoaldehyde Dimethylacetals from α,β-Chalcone Ditosylates
It is highly desirable to avoid using rare or toxic metals for oxidative reactions in the synthesis of pharmaceuticals and fine chemicals. Hypervalent iodine compounds are environmentally benign alternatives, but their catalytic use has been quite limited. Herein, the protocol for in situ hypoiodite-catalyzed oxidative rearrangement of chalcones is first realized under mild and metal-free conditions