Asymmetric hydroxyamination of oxindoles catalyzed by chiral bifunctional tertiary aminethiourea: construction of 3-amino-2-oxindoles with quaternary stereocenters
Asymmetric hydroxyamination of oxindoles catalyzed by chiral bifunctional tertiary aminethiourea: construction of 3-amino-2-oxindoles with quaternary stereocenters
作者:Li-Na Jia、Jun Huang、Lin Peng、Liang-Liang Wang、Jian-Fei Bai、Fang Tian、Guang-Yun He、Xiao-Ying Xu、Li-Xin Wang
DOI:10.1039/c1ob06413d
日期:——
Chiral bifunctional tertiary amine thiourea was applied to catalyze the asymmetric hydroxyamination of 3-subsituted oxindoles with nitrosobenzene to construct 3-amino-2-oxindoles with quaternary stereocenters in good yields (up to 91%) and enantioselectivities (up to 90% ee).