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<p>An efficient and selective method for the reduction of 2,2’-dinitrobiphenyls with NaHS to prepare benzo[<i>c</i>]cinnoline and benzo[<i>c</i>]indole <i>N</i>-oxide was developed. This reductive coupling protocol proceeded as quick as 20&#xa0;min, and gave moderate to good yields under ambient conditions. It was straightforward and easily scalable to produce various of benzo[<i>c</i>]cinnoline derivatives with diverse substitution patterns.</p> Graphical abstract <p></p>

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Reductive coupling of 2,2'-dinitrobiphenyls into benzo[c]cinnolines with NaHS

  • 期刊论文

  • 发表日期：

    2025年2月4日

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  • Pingbing Yu,
  • Zhaoyue Wen,
  • Chun Wang,
  • Jianlian Wu,
  • Tie-Gen Chen,
  • Wei Chen

摘要

An efficient and selective method for the reduction of 2,2’-dinitrobiphenyls with NaHS to prepare benzo[c]cinnoline and benzo[c]indole N-oxide was developed. This reductive coupling protocol proceeded as quick as 20 min, and gave moderate to good yields under ambient conditions. It was straightforward and easily scalable to produce various of benzo[c]cinnoline derivatives with diverse substitution patterns.

Graphical abstract