Palladium-Catalyzed Enantioselective Alkoxycarbonylation of Propargylic Carbonates with (R)- or (S)-3,4,5-(MeO)3 -MeOBIPHEP.

(R)- and (S)-3,4,5-(MeO)3 -MeOBIPHEP have been identified as the efficient chiral ligands for the palladium-catalyzed highly enantioselective synthesis of 2,3-allenoates from different types of easily available racemic propargylic carbonates with 90-98 % ee and decent yields. The potential of the products was demonstrated with high chirality transfer efficiency.