Chiral Friedel-Crafts Alkylation of Aromatic Compounds Using Chiral Episulfonium Ions as Carbon Electrophiles

Abstract
The electrophilic aromatic substitution reaction by a chiral episulfonium ion, that works as a chiral carbenium ion equivalent, proceeds without loss of the enantiomeric purity. This reaction constitutes a convenient procedure for the preparation of chiral hydrocarbons bearing the aryl group at the asymmetric carbon atom with the predictable configuration.

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