Robust dicopper(i) μ-boryl complexes supported by a dinucleating naphthyridine-based ligand.

ABSTRACT: Copper boryl species have been widely invoked as reactive intermediates in Cu-catalysed C-H borylation reactions, but their isolation and study have been challenging. Use of the robust dinucleating ligand DPFN (2,7-bis(fluoro-di(2-pyridyl)methyl)-1,8-naphthyridine) allowed for the isolation of two very thermally stable dicopper(i) boryl complexes, [(DPFN)Cu₂(μ-Bpin)][NTf₂] (2) and [(DPFN)Cu₂(μ-Bcat)][NTf₂] (4) (pin = 2,3-dimethylbutane-2,3-diol; cat = benzene-1,2-diol). These complexes were prepared by cleavage of the corresponding diborane via reaction with the alkoxide [(DPFN)Cu₂(μ-O ^t Bu)][NTf₂] (3). Reactivity studies illustrated the exceptional stability of these boryl complexes (thermal stabili

SUBMITTER: Rios P 

PROVIDER: S-EPMC9172574 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature