Fig. 5: Key intermediates and transition states involved in hydroboration of 2-benzoylpyridine 1b.
From: An unusual chiral-at-metal mechanism for BINOL-metal asymmetric catalysis

Gibbs free energies are in kcal/mol with respect to 20c and 23c. Computational details are described in the text. Hexacoordinated aluminum alkoxides 23c and 23d with a secondary alkoxy ligand are generated through ligand exchange (see Supplementary Fig. 13 for ligand exchange step).