Asymmetric One-Pot Synthesis of 1,4-Dihydroquinolines via an Organocatalytic Aza-Michael/Michael Cascade Strategy
作者:Yona Lee、Seungpyeong Heo、Sung-Gon Kim
DOI:10.1002/adsc.201401176
日期:2015.5.4
A synthetic method for the construction of fully substituted enantioenriched 1,4‐dihydroquinolines using an organocatalytic aza‐Michael/Michael cascade reaction has been developed. The asymmetric reaction of 2‐(tosylamino)phenyl α,β‐unsaturated ketones with alkynyl aldehydes, promoted by diphenylprolinol O‐TMS ether as an organocatalyst, generated chiral 1,4‐dihydroquinolines in good to high yields
开发了一种使用有机催化氮杂-迈克尔/迈克尔级联反应构建完全取代的对映体富集的1,4-二氢喹啉的合成方法。由二苯基脯氨醇O -TMS醚作为有机催化剂促进的2-(甲苯磺酰基氨基)苯基α,β-不饱和酮与炔醛的不对称反应生成手性的1,4-二氢喹啉,具有良好的高收率和优异的对映选择性(高达97 %ee)。