Copper-Catalyzed Intermolecular C(sp<sup>2</sup>)–H Amination with Electrophilic <i>O</i>-Benzoyl Hydroxylamines
作者:Wei-Hao Rao、Qi Li、Li-Li Jiang、Xue-Wan Deng、Pan Xu、Fang-Yuan Chen、Ming Li、Guo-Dong Zou
DOI:10.1021/acs.joc.1c01229
日期:2021.8.6
A copper-catalyzed intermolecular electrophilic amination of benzamides with O-benzoyl hydroxylamines was achieved with the assistance of an 8-aminoquinolyl group. With this protocol, good compatibility was observed for a variety of aryl amides and heteroaryl amides, and excellent tolerance with various functional groups was achieved. Significantly, the monoaminated product was overwhelmingly delivered
A General Method for Aminoquinoline-Directed, Copper-Catalyzed sp<sup>2</sup> C–H Bond Amination
作者:James Roane、Olafs Daugulis
DOI:10.1021/jacs.6b01117
日期:2016.4.6
method for copper-catalyzed, aminoquinoline-assisted amination of β-C(sp(2))-H bonds of benzoic acid derivatives is reported. The reaction employs Cu(OAc)2 or (CuOH)2CO3 catalysts, an amine coupling partner, and oxygen from air as a terminal oxidant. Exceptionally high generality with respect to amine coupling partners is observed. Specifically, primary and secondary aliphatic and aromatic amines, heterocycles
The efficient nickel-catalyzed direct amination of arenes with simple alkylamines has been achieved with the assistance of a bidentate directing group through sp(2) C-H bond functionalization. Preliminary mechanistic investigations indicate that the reaction probably proceeds through a Ni-I/Ni-III catalytic pathway.
Synthesis of Anthranilic Acid Derivatives through Iron-Catalyzed Ortho Amination of Aromatic Carboxamides with <i>N</i>-Chloroamines
Arenes possessing an 8-quinolinylamide group as a directing group are ortho aminated with N-chloroamines and N-benzoyloxyamines in the presence of an iron/diphosphine catalyst and an organometallic base to produce anthranilic acid derivatives in high yield. The reaction proceeds via iron-catalyzed C H activation, followed by the reaction of the resulting iron intermediate with N-chloroamine. The choice of the directing group and diphosphine ligand is crucial for obtaining the anthranilic acid derivative with high yield and product selectivity.