ol0c00262_si_001.pdf (5.86 MB)
Highly Chemo‑, Site‑, and Enantioseletive para C–H Aminoalkylation of N‑Monosubstituted Aniline Derivatives Affording 3‑Amino-2-oxindoles
journal contribution
posted on 2020-03-06, 15:38 authored by Chang Liu, Fu-Xin Tan, Jia Zhou, He-Yuan Bai, Tong-Mei Ding, Guo-Dong Zhu, Shu-Yu ZhangIn general, enantioselective C–H
functionalization of N-monosubstituted anilines is
a highly challenging task
owing to the competitive chemoselective N–H bond insertion
reactions. In this paper, we reported a direct highly chemo-, site-,
and enantioselective para C–H aminoalkylation
of N-monosubstituted aniline derivatives with isatin-derived
ketimines in the presence of chiral phosphoric acids (CPAs) and offered
a practical strategy for para asymmetric C–H
functionalization of anilines containing N–H bonds.