Enantioselective Synthesis of Azaflavanones Using Organocatalytic 6-<i>endo</i>Aza-Michael Addition
作者:Shuanghua Cheng、Lili Zhao、Shouyun Yu
DOI:10.1002/adsc.201300920
日期:2014.3.24
A method to prepare highly enantioenriched azaflavanones using an organocatalytic 6‐endo aza‐Michael addition has been described. A variety of 2‐aryl‐, 2‐vinyl‐ and 2‐methylazaflavanones were prepared in good yields (53–84%) and excellent enantioselectivities (97.6:2.4 to 99.3:0.7 er).
已经描述了使用有机催化6-内氮杂-迈克尔加成反应制备高度对映体富集的氮杂黄酮的方法。制备了各种2-芳基,2-乙烯基和2-甲基氮杂黄烷酮,收率高(53-84%)和出色的对映选择性(97.6:2.4至99.3:0.7 er)。