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The palladium-catalyzed three-component beta-alkyl-alpha-allylation reaction of activated olefins has been achieved. For example, in the presence of 5 mol % of Pd(PPh3)4, the reaction of benzylidenemalononitrile 1a with Et3B and allyl acetate 2a in THF proceeded smoothly at 40 degrees C to give the corresponding beta-ethyl-alpha-allylated product 3a in 81% yield.

the journal of organic chemistry

Beta-alkyl-alpha-allylation of Michael acceptors through the palladium-catalyzed three-component coupling between allylic substrates, trialkylboranes, and activated olefins.