Desymmetrisation of <i>meso</i>-diones promoted by a highly recyclable polymer-supported chiral phosphoric acid catalyst
作者:Lidia Clot-Almenara、Carles Rodríguez-Escrich、Miquel A. Pericàs
DOI:10.1039/c7ra13471a
日期:——
A polystyrene-supported BINOL-derived chiral phosphoric acid has been applied to the desymmetrisation of meso-diones to produce enantioenriched cyclohexenones. The catalytic resin has proven highly active and robust, giving rise to Hajos–Parrish or Wieland–Miescher type products in good yields and enantioselectivities, while allowing for extended recycling.
聚苯乙烯负载的 BINOL 衍生的手性磷酸已被应用于内消旋二酮的去对称化,以生产对映体富集的环己烯酮。该催化树脂已被证明具有高活性和稳定性,能够以良好的收率和对映选择性产生 Hajos-Parrish 或 Wieland-Miescher 型产品,同时允许延长回收期。