Stereoselective synthesis of (+)-2-deoxyolivin based on cycloaddition reaction between the homophthalic anhydride and the chiral cyclohexenone derivative
tricyclic aglycon core, olivin. In this study, we established the efficient synthesis of the anthracenone core skeleton based on a cycloaddition reaction between the homophthalic anhydride and the chiral cyclohexenone derivatives, which is promoted by the combined use of molecular sieves, proton sponge, and a Lewisacid. The cyclohexenone with four chiral centers was synthesized by asymmetric and diastereoselective