N‑Heterocyclic Carbene Stabilized Aluminum Alkyls and Their Reactivity toward NHC-Alanes.

ABSTRACT: Herein, we report the synthesis of several new NHC-stabilized aluminum alkyl species [NHCAlR₃] (for NHC = ICy, R = Me, iBu; NHC = IMes and IDip, R = iBu) via coordination of the respective free carbene to AlMe₃ or AliBu₃. Attempts to access Al-Al bonded species (dialumanes) via reactions with the respective NHCAlH₃ complexes did not yield the desired Al-(II) complexes via R-H elimination, instead yielding the R/H ligand scrambled complexes NHCAlR₂H and NHCAlRH₂, respectively. These mixed-ligand species were characterized by ¹H, ¹³C-{¹H}, and multinuclear NMR spectroscopy, with select cases characterized by single-crystal X-ray diffraction studies.

SUBMITTER: Burnett S 

PROVIDER: S-EPMC12801380 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature