(S)-(−)-Fluorenylethylchloroformate (FLEC); preparation using asymmetric transfer hydrogenation and application to the analysis and resolution of amines
作者:Mohammad A. Amin、Michelle A. Camerino、Simon J. Mountford、Xiao Ma、David T. Manallack、David K. Chalmers、Martin Wills、Philip E. Thompson
DOI:10.1016/j.tet.2019.130591
日期:2019.10
chiral derivatisation reagent that is used for the resolution of a wide variety of chiral amines. Herein, we describe an improved preparation of (S)-(−)-FLEC using an efficient asymmetric catalytic transfer hydrogenation as the key step. We also demonstrate the application of FLEC as a chiral Fmoc equivalent for chiral resolution, with facile deprotection, of tetrahydroquinaldines, and its capacity for
芴基乙基甲酸酯(FLEC)是一种有价值的手性衍生试剂,用于拆分多种手性胺。在这里,我们描述了使用有效的不对称催化转移氢化作为关键步骤的改进的(S)-(-)-FLEC的制备。我们还证明了FLEC作为手性Fmoc等效物的应用,用于手性拆分四氢奎尼丁,并具有容易的脱保护作用,以及其在硝化反应中诱导区域选择性的能力。