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[摘要]:Alkyl and (hetero) aryl alkyne allyl alcohols can readily be transformed into chiral 4-alkyl 3-alkylidene tetrahydrofurans and tetrahydrofuranones bearing alpha, beta-unsaturated carbonyl side chains in a one-pot fashion via an enantioselective rhodium-catalyzed cycloisomerization-Wittig olefination sequence in good yields (54-86%). |
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