Oxidative C-H/C-H Coupling of Dipyrromethanes with Azines by TiO2-Based Photocatalytic System. Synthesis of New BODIPY Dyes and Their Photophysical and Electrochemical Properties
2021
Maria A. Trestsova | Irina A. Utepova | Oleg N. Chupakhin | Maksim V. Semenov | Dmitry N. Pevtsov | Lyubov M. Nikolenko | Sergey A. Tovstun | Anna V. Gadomska | Alexander V. Shchepochkin | Gregory A. Kim | Vladimir F. Razumov | Irina B. Dorosheva | Andrey A. Rempel
Oxidative C-H/C-H coupling reactions of dipyrromethanes with azines in the presence of a heterophase oxidative photocatalytic system (O2/TiO2/visible light irradiation) were carried out. As a result of cyclization of obtained compounds with boron trifluoride etherate, new hetaryl-containing derivatives of 4,4-difluoro-4-boron-3a,4a-diaza-s-indacene were synthesized. For the obtained compounds, absorption and luminescence spectra, quantum yields of luminescence as well as cyclic volt-amperograms were measured.
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