Abstract Titanium-multicarbene complexes, namely organotitanium species having a plurality of titanium-carbene complex substructures, were easily prepared by the reaction of aromatic nuclei possessing spatially separated thioacetal moieties with the titanocene (II) reagent Cp 2 Ti [P (OEt) 3] 2. Reaction of these multicarbene complexes with aromatic ketones gave various highly conjugated compounds in good yields.
