Catalytic Addition of Alcohols to Carbodiimides Mediated by Benzimidazolin-2-iminato Actinide Complexes

Heng Liu, Natalia Fridman, Matthias Tamm*, Moris S. Eisen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The synthesis of methyl and methoxy substituted benzimidazolin-2-iminato actinide (IV) complexes (1-4), [(Bim2-MeOPh/MeN)AnN″3] and [(Bim5-MeDipp/MeN)AnN″3] (An = U, Th; N″ = N(SiMe3)2), was performed by the protonolysis of the actinide metallacycles with the respective neutral benzimidazolin-2-imine ligand precursors. Full characterization, including X-ray diffraction studies for all the complexes, is reported. Despite the high oxophilicity of the actinide metal centers, these complexes displayed extremely high activities in the catalytic addition of aliphatic and aromatic alcohols to carbodiimides, under very mild conditions, providing a facile and highly efficient strategy for the construction of carbon-oxygen bonds. Various kinds of diols and triols can also be used in this intermolecular insertion, representing a large substrate scope for the application of these organoactinide precatalysts.

Original languageEnglish
Pages (from-to)4600-4610
Number of pages11
JournalOrganometallics
Volume36
Issue number23
DOIs
StatePublished - 11 Dec 2017
Externally publishedYes

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