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[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Visible-light promoted catalyst-free imidation of arenes and heteroarenes
Lu Song1, Long Zhang, Sanzhong Luo
1Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory for Molecular Recognition and Function, Institute of Chemistry, the Chinese Academy of Sciences Beijing, 100190 (China).
Abstract:
We described herein a catalyst-free visible-light photolytic protocol for the imidation of arenes and heteroarenes. N-Bromosaccharin was identified as a viable and chemoselective nitrogen radical precursor that undergoes controllable homolytic cleavage under ambient light irradiation. The reaction can be applied to a number of arenes and heteroarenes with good chemo- and regioselectivity. Mechanistic studies revealed that radical chain termination by electron transfer-proton transfer (ET-PT) is the leading productive pathway for the reaction.
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