Self-disproportionation of enantiomers of non-racemic chiral amine derivatives through achiral chromatography
作者:Tsuyoshi Nakamura、Kaori Tateishi、Shiori Tsukagoshi、Saori Hashimoto、Shotaro Watanabe、Vadim A. Soloshonok、José Luis Aceña、Osamu Kitagawa
DOI:10.1016/j.tet.2012.03.054
日期:2012.5
Efficient self-disproportionation of enantiomers of several non-racemic chiral amines was achieved through conversion to N-acetamides and subsequent MPLC using an achiral column. The MPLC of these non-racemic N-acetamide derivatives gave the chart having a clear boundary between two fractions. Thus, in the less polar fraction, remarkable enantiomerenrichment was observed (>99%ee), while the ee of