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Visible-light-mediated synthesis of substituted phenazine and phenoxazinone using eosin y as a photoredox catalyst
A.K. Dhara, S. Maity,
Published in American Chemical Society
PMID: 33880922
Volume: 23
Issue: 9
Pages: 3269 - 3273
This paper describes an efficient, sustainable, one-step procedure for synthesizing substituted phenazines and phenoxazinones from commercially available ortho-substituted aromatic amines with very good yield (≥80%) in water. The procedure uses eosin Y (EY) as a photoredox catalyst at room temperature (RT). The highly reactive o-quinone-diimine or o-quinone-imine intermediate was characterized by the HR-MS technique. © 2021 American Chemical Society.
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Published in American Chemical Society
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