90. Asymmetric diels-alder reaction of a chiral allenic ester : enantioselective synthesis of (–)-β-santalene
    Oppolzer, W.; Chapuis, C.
    Tetrahedron Lett. 1983, 24, 4665-4668

The Lewis-acid promoted Diels-Alder reaction of the allenic ester 10 provides the adduct 11 with excellent π-facial selection leading to an efficient enantioselective synthesis of (−)-β-santalene and to the recovery of the chiral control element 7.

DOI : 10.1016/S0040-4039(00)86221-8