Reactions of Complex Ligands, LXXVII. Axial-Chiral Metal Carbenes: Synthesis and Structure of 1,1-Binaphthyl-Derived Carbonyl-Carbene Complexes of Chromium

Axial‐chiral mono‐ and biscarbene complexes of chromium containing the 1,1‐binaphthyl skeleton have been obtained in both racemic and enantiopure forms in a one‐pot reaction starting from lithiated 2,2‐dimethoxy‐1,1‐binaphthyl (1) and hexacarbonyl chromium via the Fischer route. An X‐ray structure analysis of the biscarbene complex 2 reveals that the biscarbene functionalization significantly increases the dihedral angle defined by the biaryl planes. The enantiopure complexes have been characterized by CD spectroscopy.