Abstract
Abstract The Zn mediated reactions of allyl, crotyl and cinnamyl halides with β- and γ-keto esters in THF–NH4Cl(aq) give — by completely selective keto allylation and with good yields — β- and γ-hydroxy esters, respectively. The γ-hydroxy esters were easily and quantitatively converted to γ-allyl substituted γ-butyrolactones in a one-pot reaction.
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