Palladium-Catalyzed Access to Benzocyclobutenone-Derived Ketonitrones via C(sp<sup>2</sup>)–H Functionalization
作者:Jakub Brześkiewicz、Rafał Loska
DOI:10.1021/acs.orglett.2c01317
日期:2022.6.10
The palladium-catalyzedC(sp2)–H functionalization of bromoaryl aldonitrones leading to benzocyclobutenone-derived ketonitrones is described. This method allows for the preparation of a wide range of strained, four-membered ketonitrones with broad functional group tolerance. Downstream transformations of the formed products were readily demonstrated, illustrating the synthetic utility of the obtained
Efficient copper-catalyzed intramolecular N-arylation for the synthesis of oxindoles
作者:Yu-Huei Jhan、Ting-Wei Kang、Jen-Chieh Hsieh
DOI:10.1016/j.tetlet.2012.12.082
日期:2013.2
An efficient copper-catalyzed intramolecular N-arylation was performed by using substituted 2-(2-bromoaryl)acetamide with small amount of Cu2O and benzene-1,2-diamine as catalytic system under aerobic conditions, which provided good to excellent yields of oxindoles with tolerance of a wide variety of substrates. (C) 2012 Elsevier Ltd. All rights reserved.