)-α-iononeElisabetta Brenna, Claudio Fuganti, Piero Grasselli, Mara Redaelli and Stefano Serra
Diastereoisomeric enrichment through fractional crystallisation of 4-nitrobenzoate derivatives of α-ionol, and enantioselective enzyme-mediated reactions of α-ionol and α-ionol acetate, were usefully combined to optimise two different procedures to enantiopure (S
)- and (R)-ionone.