Magnesium complexes containing biphenyl-based tridentate imino-phenolate ligands for ring-opening polymerization of rac-lactide and α-methyltrimethylene …
A series of racemic 2-[(2′-(dimethylamino) biphenyl-2-ylimino) methyl]-4-R2-6-R1-phenols (L1H–L4H) were reacted with {Mg [N (SiMe3) 2] 2} 2 to provide four heteroleptic magnesium complexes (L1–4) MgN (SiMe3) 2·(THF) n (1, R1= tBu, R2= Me, n= 1; 2, R1= R2= CMe2Ph,