Synthesis, Optical Properties, and Regioselective Functionalization of 4a-Aza-10a-boraphenanthrene
- Abengózar, A. 1
- García-García, P. 1
- Sucunza, D. 1
- Frutos, L.M. 1
- Castano, O. 1
- Sampedro, D. 2
- Pérez-Redondo, A. 1
- Vaquero, J.J. 1
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1
Universidad de Alcalá
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2
Universidad de La Rioja
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ISSN: 1523-7060
Año de publicación: 2017
Volumen: 19
Número: 13
Páginas: 3458-3461
Tipo: Artículo
beta Ver similares en nube de resultadosOtras publicaciones en: Organic Letters
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Resumen
4a-Aza-10a-boraphenanthrene has been synthesized in only four steps from commercially available materials with a remarkable overall yield of 62%. In contrast to other BN-isosteres of phenathrene, this isomer is weakly fluorescent, which has been explained by means of computational studies that found a low energy conical intersection for the nonradiative deactivation of the excited state. Moreover, a completely regioselective functionalization of 4a-aza-10a-boraphenanthrene at C-1 by reaction with activated electrophiles has been achieved. © 2017 American Chemical Society.