Carbometalated Complexes Possessing Tripodal Pseudo‑C 3‑Symmetric Triptycene-Based Ligands

New air-stable tripodal triphosphine ligands 1,8,13-tris­(diisopropylphosphino)-2,3-dimethoxytriptycene (P 3 T1) and 1,8,13-tris­(diphenylphosphino)-2,3-dimethoxytriptycene (P 3 T2) are presented and discussed. Their synthesis is based on the first practical synthesis of 1,8,13-tribromotriptycene. Reaction with palladium leads to the formation of new pseudo-C 3-symmetric carbometalated complexes: namely, Pd­(P3T1)­Cl and Pd­(P3T2)­Cl. The catalytic activity of the new ligands and complexes was tested in the palladium-catalyzed chemoselective transfer hydrogenation of α,β-unsaturated ketones.