Synthesis of corey lactone via highly stereoselective asymmetric diels-alder reaction

Article abstract of DOI:10.1016/0040-4039(91)80038-8

We have succeeded in a highly stereoselective asymmetric Diels-Alder reaction between a chiral acrylate 3a derived from commercially available D-pantolactone 2 and 5-benzyloxymethyl-cyclopentadiene 4 to give the adduct 5a in 94% d.e. and 79% yield for the synthesis of Corey lactone 1.