Rhoda- and iridacarborane halide complexes: Synthesis, structure and application in homogeneous catalysis

Publication date: Available online 24 January 2020Source: Journal of Organometallic ChemistryAuthor(s): Mikhail M. Vinogradov, Dmitry A. LoginovAbstractThe review covers the synthesis, structural features and catalytic activity of rhoda- and iridacarborane halide complexes containing monoanionic dicarbollide [L-C2B9H10]− (L = SMe2, NMe3) and tricarbollide [tBuHN-C3B8H10]− ligands. These complexes are structural analogs of the well-known cyclopentadienyl complexes [Cp*MCl2]2, which are widely used as catalysts for various C–H activation processes. Although the search for applications of halide metallacarboranes started not a long time ago, they have already proved to be efficient catalysts for oxidative coupling of benzoic acids with internal alkynes and reductive amination of carbonyl compounds without external hydrogen source. The influence of substituents in the carborane cage on the structure and catalytic activity is also discussed.Graphical abstract

Source: Journal of Organometallic Chemistry - January 26, 2020 Category: Chemistry Source Type: research