6533b7cffe1ef96bd125853c

RESEARCH PRODUCT

Gold-Catalyzed Intramolecular Hydroamination of o-Alkynylbenzyl Carbamates: A Route to Chiral Fluorinated Isoindoline and Isoquinoline Derivatives

Miguel A. MaestroPablo BarrioIgnacio IbáñezSilvia CatalanSantos Fustero

subject

Hydrocarbons FluorinatedMolecular StructureChemistryOrganic ChemistrySonogashira couplingStereoisomerismIsoindolineIsoindolesIsoquinolinesBiochemistryMedicinal chemistryCatalysischemistry.chemical_compoundCycloisomerizationNucleophileIntramolecular forceElectronic effectOrganic chemistryHydroaminationCarbamatesGoldPhysical and Theoretical ChemistryIsoquinolineAmines

description

Enantiomerically pure fluorinated isoindoline and dihydroisoquinoline scaffolds have been prepared through a diastereoselective addition of fluorinated nucleophiles to Ellman’s N-(tert-butanesulfinyl)imines followed by a sequence of Sonogashira cross-coupling/gold(I)-catalyzed cycloisomerization of the corresponding carbamate. A more favored 5-exo-dig mechanism was observed mainly due to an electronic effect of the fluorinated group.

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