A stereoconvergent access to chiral carbocyclic building blocks is reported. 6-(3′-Hydroxy-4′-methylpent-4′-enyl)-3-methoxy cyclohex-2-enone (1) that consists of four stereoisomers, i.e., racemic ca. 1
:1 diastereomers, is converted to enantiomerically pure carbocycles through a combination of regioselective catalytic asymmetric reduction and alkylative remote stereoinduction. The present stereoconvergent strategy has allowed the formal synthesis of bioactive (−)-dysidiolide.
Organic & Biomolecular Chemistry
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