Chemo-enzymatic asymmetric total synthesis of penienone

An asymmetric synthesis of penienone has been accomplished from (R)-5-hydroxymethyl-2-cyclohexenone by adopting a linear strategy. Lipase-PS-catalyzed enzymatic kinetic resolution (EKR) and Julia–Kocienski olefination followed by substrate-directed anionic hydroxymethylation have been successfully employed to achieve the target molecule.