Enantioselectivity in the catalytic hydroesterification of acenaphthylene: direct evidence of the racemization of PdII-alkyl species by a degenerate substitution equilibrium with Pd0LnElectronic supplementary information (ESI) available: experimental details; mass spectra for 2-d0, 2-d1, and polydeuterated 2; 1H NMR spectra of 2, ee measurements; IR spectra of freshly prepared hydroesterification mixtures. See http://www.rsc.org/suppdata/cc/b3/b304553f/