Construction of Binuclear Benzimidazole-Fused Quinazolinones and Pyrimidinones Using Aryl Isocyanates as Building Blocks by Transition-Metal-Free C(sp<sup>2</sup>)–N Coupling
作者:Pham Duy Quang Dao、Chan Sik Cho
DOI:10.1021/acs.joc.0c02067
日期:2020.10.16
of binuclear N-fused hybrid scaffolds was constructed by the reaction of 2-(2-bromoaryl)- and 2-(2-bromovinyl)benzimidazoles with aryl isocyanates as building blocks in the presence of a base under microwave irradiation. A nucleophilic addition followed by an unprecedented transition-metal-free C(sp2)–N coupling is proposed as a reaction pathway of this green process.