Abstract
A Cu-catalyzed, highly regio-, and stereoselective hydroallylation of thioalkynes has been developed with allylboronates as the allylating reagents, providing stereodefined 1,4-dienyl sulfides in good to excellent yields under very mild reaction conditions. The resulting products can been smoothly converted into skipped dienes by a Ni-catalyzed coupling of C–S bonds with Grignard reagents, thus offering a novel efficient method for the regio- and stereoselective synthesis of 1,4-dienes.
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