“…Our group previously synthesized group 3 metal monoalkyl complexes supported by ferrocene diamide ligands (Chart 8) (Diaconescu, 2010a;Diaconescu, 2010b) and studied their reactivity toward various organic substrates, including aromatic N-heterocycles (Carver and 16 Diaconescu, 2008;Miller et al, 2009) and other unsaturated substrates ). The 1,1′-ferrocenediyl (fc) diamide ligands have the general formula fc(NR)2; the system studied the most by us has R = Si t BuMe2 , while other versions, such as R = SiMe3 (Monreal et al, 2007), SiPhMe2 (Duhović and Diaconescu, 2013), adamantyl (Wong et al, 2010), 2,4,6-trimethylphenyl, and3,5-dimethylphenyl (Lee et al, 2011) have been explored only briefly. Group 3 metal alkyl complexes supported by a pincer-type pyridine diamide ligand, 2,6-bis(2,6-di-iso-propylanilidomethyl)pyridine (N2N py ) (Guerin et al, 1995), were also synthesized for a reactivity comparison study (Chart 8) (Jie and Diaconescu, 2010).…”