Novel L-threonine-based ionic liquid supported organocatalyst for asymmetric syn-aldol reaction: activity and recyclability design
作者:Vasiliy V. Gerasimchuk、Roman R. Romanov、Gladys H.-T. Woo、Igor A. Dmitriev、Alexander S. Kucherenko、Sergei G. Zlotin
DOI:10.24820/ark.5550190.p010.149
日期:——
A novel recyclable threonine-derived ionic-liquid-supportedorganocatalyst of asymmetric cross-aldol reactions has been developed. In its presence, aromatic aldehydes react with hydroxyacetone, methoxyacetone and 2-butanone to afford the corresponding syn-aldol products in moderate to high yields with excellent diastereo(syn/anti up to 96:4) and enantio-selectivity (up to 95 % ee), which was retained