Lewis Acid/Brønsted Acid Controlled Pd(II)-Catalyzed Chemodivergent Functionalization of C(<i>sp</i><sup>2</sup>)–H Bonds with <i>N</i>-(Arylthio)i(a)mides
作者:Manthena Chaitanya、Pazhamalai Anbarasan
DOI:10.1021/acs.orglett.8b01281
日期:2018.6.1
C–H bonds have been accomplished employing N-(arylthio)imides in combination with either Brønsted acid or Lewis acid, respectively. Notable features of the developed methodologies include excellent diversity, high functional group tolerance, wide substrate scope, and use of a single N–S reagent. Importantly, the developed hypothesis was also successfully extended to the amidation of C–H bonds. A plausible
Cu-Catalyzed Direct Amidation of Aromatic C–H Bonds: An Access to Arylamines
作者:Hui Xu、Xixue Qiao、Shiping Yang、Zengming Shen
DOI:10.1021/jo5003592
日期:2014.5.16
A Cu-catalyzed aromatic C-H amidation with phthalimide under oxygen as a terminal oxidant without using additional additives has been achieved. This reaction has the broad substrate scope and shows moderate to good yields in most cases. This method is complementary to the previously reported metal-catalyzed C-H amination systems.
Rhodium(III)-Catalyzed C–H Activation and Amidation of Arenes Using <i>N</i>-Arenesulfonated Imides as Amidating Reagents
作者:Songjie Yu、Boshun Wan、Xingwei Li
DOI:10.1021/ol401569u
日期:2013.7.19
Rhodium(III)-catalyzed C-H-activation amidation of arenes bearing chelating groups has been achieved using N-arenesulfonated imides as efficient amidating reagents without using any base additive. Pyridine, oxime, and pyrimidine proved to be viable directing groups.