6533b826fe1ef96bd1285000

RESEARCH PRODUCT

ChemInform Abstract: Gold(I)-Catalyzed Intermolecular Oxyarylation of Alkynes: Unexpected Regiochemistry in the Alkylation of Arenes.

Gregori UjaqueKabir M. HossainMercedes Medio-simónSergi MontserratGisela ManchaAna B. CuencaGregorio AsensioAgustí Lledós

subject

inorganic chemicalschemistryConcerted reactionIntermolecular forceElectrophileStructural isomerchemistry.chemical_elementRegioselectivityGeneral MedicineAlkylationSulfurMedicinal chemistryCatalysis

description

The reaction between acetylenes and sulfoxides, studied as a test case for gold-catalyzed intermolecular addition, provides the oxyarylation compounds 3 in good yields. Unpredictably, in all cases a single regioisomer arising from the electrophilic aromatic alkylation at the position adjacent to the sulfur atom is obtained instead of the expected Friedel−Crafts regioisomer. A new concerted mechanism based on DFT calculations is proposed to account for the products in this intermolecular gold(I)-catalyzed reaction.

https://doi.org/10.1002/chin.201012084