The asymmetric decarboxylation of prochiral α-disubstituted malonic acids is an attractive route to produce homochiral αsubstituted carboxylic acids. Various metal-catalysed and organocatalytic methods have been explored for related enantioselective decarboxylative protonation (EDP) reactions.[1] However, the synthetic EDP methods can only deliver chiral carboxylic acids or esters with moderate enantioselectivities (ee).[1] On the other hand, ...