Chiral Cp-Rhodium(III)-Catalyzed Asymmetric Hydroarylations of 1,1-Disubstituted Alkenes
Metal-catalyzed functionalizations at the ortho position of a directing group have become an efficient bond-forming strategy. A wide range of transformations that employ CpRh-III catalysts have been described, but despite their synthetic potential, enantioselective variants that use chiral versions of the Cp ligand remain scarce (Cp*=pentamethyl cyclopentadienyl). Cyclopentadienyl compounds with an atropchiral biaryl backbone are shown to be suitable ligands for the efficient intramolecular enantioselective hydroarylation of aryl hydroxamates. Dihydrofurans that bear methyl-substituted quaternary stereocenters are thus obtained by CH functionalization under mild conditions.
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Ye, B., Donets, P. A., & Cramer, N. (2014). Chiral Cp-Rhodium(III)-Catalyzed Asymmetric Hydroarylations of 1,1-Disubstituted Alkenes. Angewandte Chemie International Edition, 53(2), 507–511. https://doi.org/10.1002/anie.201309207
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WOS:000329152600027
2014
53
2
507
511
REVIEWED
EPFL