Palladium-Catalyzed Highly Selective Transformation of Allylic Substrates

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Allylic alkylations with carbon nucleophiles are among the most important carbon. carbon bond formation methods in organic synthesis due to the versatility of the alkene functionality for stereoselective derivatization. Nevertheless, the reaction of unsymmetrically substituted secondary allylic substrates occurs competitively at theα-andγ-positions. To address the issue of the regiochemical control in the allylic substitution, palladium-or copper-catalyzed allylic alkylations of unsymmetrically substituted internal allylic alcohol substrates, which proceeded with excellentγ-selectivity and stereospecificity, have been developed.