The synthesis of racemic 7, 9-dideoxythysanone 9 was achieved starting from allylnaphthalene 5 via epoxidation and reduction to bromoalcohol 7. Subsequent lithiation of the bromide and quenching with DMF afforded lactol 8 which underwent clean oxidative demethylation to racemic 6, 8-dideoxythysanone 9. The synthesis of (1R, 3S)-(+)-7, 9- dideoxythysanone 9 was then achieved albeit in low ee, starting from (R)-epoxide 6 which ...