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We previously reported that the attempt to synthesize tetramethoxyindolo[3,2-]indole led to an undefined product. Now, it is confirmed that its instability is derived from the one-electron transfer from the tetramethoxyindolo[3,2-]indole derivatives to halogenated solvents under ultraviolet-visible (UV-vis) light irradiation, forming a stable indolo[3,2-]indole radical cation while causing the carbon-halogen (C-X, X = Cl, Br, I) bond scission.
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http://dx.doi.org/10.1021/acs.joc.5c01360 | DOI Listing |
J Org Chem
September 2025
Key Laboratory of Flexible Optoelectronic Materials and Technology, Ministry of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan 430056, P. R. China.
We previously reported that the attempt to synthesize tetramethoxyindolo[3,2-]indole led to an undefined product. Now, it is confirmed that its instability is derived from the one-electron transfer from the tetramethoxyindolo[3,2-]indole derivatives to halogenated solvents under ultraviolet-visible (UV-vis) light irradiation, forming a stable indolo[3,2-]indole radical cation while causing the carbon-halogen (C-X, X = Cl, Br, I) bond scission.
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