Alumanyl silanides as multifunctional reagents for olefin cycloaddition, CO hydrosilylation, and reductive CO coupling.

ABSTRACT: Alumanyl silanides represent a rare class of main group complexes, characterized by an anionic Al-Si bond, stabilized through an intimate ion pair. Computations revealed pronounced multiple-bond character in these alumanyl silanides, which is further enhanced upon counter ion sequestration. Despite these electronic features, such bonding motifs remain largely unexplored in experimental chemistry. In this work, we investigate the reactivity of a sodium alumanyl silanide, stabilized by bulky silyl groups and an N-heterocyclic imine (NHI), towards alkenes, alkynes, aldehydes, CO₂, and CO. The addition of ethylene, styrene, or mesitylaldehyde to said alumanyl silanide affords the corresponding [2+2]-cycloaddition products, characterized by polarized Al-Si-C-C and Al-Si-C-O heterocyc

SUBMITTER: Ludwig M 

PROVIDER: S-EPMC12824870 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature