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Enolates derived from α-(ortho-haloaryl)-substituted ketones undergo palladium-catalysed C–O bond formation to deliver benzofuran products in good yield. A catalyst generated from Pd 2 (dba) 3 and the ligand DPEphos effects the key bond formation to deliver a variety of substituted products from both cyclic and acyclic precursors. The analogous thio-ketones undergo C–S bond formation...
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