Turning the Tables: Ligand-Centered Hydride Shuttling in Organometallic BIP-Al Systems.

ABSTRACT: The reversible storage and release of hydride equivalents remains a central challenge in the design of biomimetic redox systems. Cationic 2,6-bis(imino)pyridine organoaluminum complexes [(4-R-BIP)AlR₂]⁺ (where R = H; R' = Me, 1a; R' = Et, 1b; R = Bn; R' = Me, 1c) and their neutral 2,6-bis(imino)-4-R-dihydropyridinate counterparts [(4-R-HBIP)AlR₂] 2a-c are presented as chemically reversible hydride exchangers. Interconversion between these systems is achieved through strong reducing agents such as M⁺[HBEt₃]^- (where M = Li; Na) or LiAlH₄, while powerful electrophiles like B(C₆F₅)₃ or cationic trityl salts Ph₃C⁺ enable th

SUBMITTER: Delgado-Collado JM 

PROVIDER: S-EPMC12326362 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature