Abstract
Transmetallation of 4,4′-bis{(2,6-bis[(dimethylamino)methyl]phenylgold)diphenyl-phosphino}biphenyl (3) with MCl4 (M = Ti, NbCl, V) in benzene gave the corresponding transition metal pincer complexes (4) and insoluble 4,4′-bis[P-(chloro gold(I))diphenylphosphino]biphenyl (2), which can be quantitatively recovered and recycled. Interestingly, 3 did not react with TiCl3. However, reaction of 2,6-bis[(dimethylamino)methyl]phenyllithium (1) with TiCl3 resulted in formation
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