Enantio‐ and Diastereoselective, Complete Hydrogenation of Benzofurans by Cascade Catalysis
Daniel Moock, Tobias Wagener, Tianjiao Hu, Timothy Gallagher, Frank Glorius
Abstract
We report an enantio- and diastereoselective, complete hydrogenation of multiply substituted benzofurans in a one-pot cascade catalysis. The developed protocol facilitates the controlled installation of up to six new defined stereocenters and produces architecturally complex octahydrobenzofurans, prevalent in many bioactive molecules. A unique match of a chiral homogeneous ruthenium-N-heterocyclic carbene complex and an in situ activated rhodium catalyst from a complex precursor act in sequence to enable the presented process.
Topics & Concepts
StereocenterCascadeRhodiumCatalysisCarbeneRutheniumChemistryCombinatorial chemistryHomogeneousMoleculeSequence (biology)Organic chemistryStereochemistryEnantioselective synthesisMathematicsBiochemistryCombinatoricsChromatographyAsymmetric Hydrogenation and CatalysisCyclopropane Reaction MechanismsOrganoboron and organosilicon chemistry