作者:Kitty K. Asahara、Toshimasa Okita、Ami N. Saito、Kei Muto、Yoshiaki Nakao、Junichiro Yamaguchi
DOI:10.1021/acs.orglett.9b01593
日期:2019.6.21
A Pd-catalyzed intramolecular C–H arylation of nitroarenes has been developed. Nitroarenes bearing tethered aryl groups at the ortho-position can be readily prepared in one step from 2-halonitroarenes by a nucleophilic aromatic substitution (SNAr). Under Pd/BrettPhos catalysis, activations of the C–NO2 bond as well as the C–H bond on arenes generated the corresponding biaryl linkage in moderate to
已经开发了钯催化的硝基芳烃的分子内C–H芳基化反应。硝基芳烃轴承拴系的芳基在邻位-位可以在从2-halonitroarenes一个步骤通过亲核芳族取代(S容易地制备Ñ AR)。在Pd / BrettPhos催化下,芳烃上C–NO 2键以及C–H键的活化产生了相应的联芳基键合,产率中等至极佳。