A New Enantioselective Route to Bisabolane Sesquiterpenes Phenols: Synthesis of (S)-(+)-Curcuphenol and (S)-(+)-Curcumene.

(S)-(+)-Curcuphenol 1 and (S)-(+)-curcumene 2 were synthesised starting from enantiopure (R)-(-)-3-furyl-2-methylpropanol 3 and building up the phenolic ring through a benzoannulation reaction.