6533b850fe1ef96bd12a83a5

RESEARCH PRODUCT

Asymmetric Synthesis of Fluorinated Isoindolinones through Palladium-Catalyzed Carbonylative Amination of Enantioenriched Benzylic Carbamates

Lidia HerreraSilvia CatalanRaquel RománSantos FusteroPablo BarrioIgnacio Ibáñez

subject

heterocyclesChemistryOrganic Chemistryasymmetric synthesisEnantioselective synthesischemistry.chemical_elementGeneral ChemistrycarbonylationpalladiumCatalysisCatalysisfluorineFluorineOrganic chemistryEnantiomeric excessCarbonylationRacemizationAminationPalladium

description

The asymmetric synthesis of fluorinated isoindolinones has been achieved by a palladium-catalyzed aminocarbonylation reaction of the corresponding -fluoroalkyl o-iodobenzylamines. A base-mediated anti -hydride elimination process was suggested to explain the partial erosion of the optical purity observed in some cases. This mechanistic rationale enabled the minimization of this partial racemization by fine-tuning the pK(a) of the base.

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