Turbo Charging Group 2 Reagents for Metathesis, Metalation, and Catalysis

Low oxidation state and hydrido group 2 complexes: synthesis and applications in the activation of gaseous substrates

“…66 Within this context, the group 2 elements have received considerable attention and several group 2 hydride complexes have been implicated in catalysis (vide infra). [13][14][15][65][66][67] Unlike low oxidation state group 2 systems, isolable hydrido complexes exist for each non-radioactive element of the alkaline earth metals. These group 2 hydride complexes can be accessed by utilising sterically demanding ligands to protect the M-H bond.…”

“…facilitate the catalytic hydroboration of carbon dioxide (vide infra). 82 An alternative route to ionic hydride complexes [67][Al(OC(CF 3 ) 3 ) 4 ] and [68][Al(OC(CF 3 ) 3 ) 4 ] from [BDI Dipp MgÁ Á ÁC 6-D 6 ][Al(OC(CF 3 ) 3 ) 4 ] has also been presented by Hill and co-workers. 83 Joining two b-diketiminate ligands through appropriate alkyl or aryl N,N-linkers has been exploited by the research groups of Harder and Kretschmer to access 69, 75 This journal is © The Royal Society of Chemistry 2024 used to gain entry to a tetranuclear magnesium(II) hydride complex (75) which contains a rare example of a four-coordinate hydride ligand in a near square planar geometry.…”