Proton-Sensitive Free-Radical Dimer Evolution Is a Critical Control Point for the Synthesis of Δ(2,2(′))-Bibenzothiazines

[Image: see text] The mechanism of the acid-dependent interring dehydrogenation in the conversion of the single-bonded 3-phenyl-2H-1,4-benzothiazine dimer 2 to the Δ(2,2(′))-bi(2H-1,4-benzothiazine) scaffold of red hair pigments is disclosed herein. Integrated chemical oxidation and oxygen consumpti...

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Publicat a:J Org Chem
Autors principals: Valgimigli, Luca, Alfieri, Maria Laura, Amorati, Riccardo, Baschieri, Andrea, Crescenzi, Orlando, Napolitano, Alessandra, d’Ischia, Marco
Format: Artigo
Idioma:Inglês
Publicat: American Chemical Society 2020
Accés en línia:https://ncbi.nlm.nih.gov/pmc/articles/PMC8011920/
https://ncbi.nlm.nih.gov/pubmed/32842740
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1021/acs.joc.0c01520
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