Journal
RSC ADVANCES
Volume 9, Issue 44, Pages 25368-25376Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra05004c
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Funding
- Polish National Center of Sciences (NCN): Marie Skodowska-Curie POLONEZ 2 grant [2016/21/P/ST5/00630]
- Polish National Center of Sciences (NCN): SONATA 10 [2015/19/D/ST5/02774]
- European Social Fund
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A one-pot, Cu-catalyzed direct C-H arylselenation protocol using elemental Se and aryl iodides was developed for nitro-substituted, N-alkylated pyrazoles, imidazoles and other heterocycles including 4H-chromen-4-one. This general and concise method allows one to obtain a large number of unsymmetrical heteroaryl selenides bearing a variety of substituents. The presence of the nitro group was confirmed to be essential for the C-H activation and can also be used for further functionalisation and manipulation. Several examples of heteroannulated benzoselenazines were also synthesized using the developed synthetic protocol.
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