4.7 Article

Application of Bulky NHC-Rhodium Complexes in Efficient S-Si and S-S Bond Forming Reactions

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INORGANIC CHEMISTRY
卷 60, 期 23, 页码 17579-17585

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AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.1c02160

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  1. National Science Centre (Poland) [UMO-2016/23/D/ST5/00417]

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Efficient and straightforward syntheses of silylthioethers and disulfides have been achieved using novel rhodium complexes as efficient catalysts. These green protocols, utilizing easily accessible reagents and solvent-free conditions, enable the synthesis of compounds containing S-Si and S-S bonds. Preliminary tests have shown promising results for the coupling of mono- and octahydro-substituted spherosilicates with selected thiols, indicating the potential for synthesizing a novel class of functionalized silsesquioxane derivatives.
The efficient and straightforward syntheses of silylthioethers and disulfides are presented. The synthetic methodologies are based on new rhodium complexes containing bulky N-heterocyclic carbene (NHC) ligands that turned out to be efficient catalysts in thiol and thiol-silane coupling reactions. These green protocols, which use easily accessible reagents, allow obtaining compounds containing S-Si and S-S bonds in solvent-free conditions. Additionally, preliminary tests on coupling of mono-and octahydro-substituted spherosilicates with selected thiols have proved to be very promising and showed that these catalytic systems can be used for the synthesis of a novel class of functionalized silsesquioxane derivatives.

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