Chirality Transfer Intramolecular Pauson–Khand Reaction with N–C Axially Chiral Sulfonamides Bearing an Ene–Yne Structure

An intramolecular Pauson–Khand reaction with enantioenriched N–C axially chiral <i>N</i>-allyl-<i>N</i>-(2-alkynylphenyl)sulfonamide derivatives proceeded with complete chirality transfer from axial chirality (<i>P</i> configuration) to central chirality (<i>R</i> configuration), affording chiral nitrogen-containing tricyclic compounds (tetrahydrocyclopentaquinolin-2-one derivatives).