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  • Title: Construction of a chiral quaternary carbon center by catalytic asymmetric alkylation of 2-arylcyclohexanones under phase-transfer conditions.
    Author: Kano T, Hayashi Y, Maruoka K.
    Journal: J Am Chem Soc; 2013 May 15; 135(19):7134-7. PubMed ID: 23634801.
    Abstract:
    In this paper, we present an asymmetric alkylation of modified 2-arylcyclohexanones that employs a novel chiral ammonium bromide as a phase-transfer catalyst and an achiral auxiliary as a controller to improve the enantioselectivity to afford optically enriched products having a chiral quaternary carbon center.
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