Application of Visible‐to‐UV Photon Upconversion to Photoredox Catalysis: The Activation of Aryl Bromides | Zendy

Majek Michal | Zendy; Faltermeier Uwe | Zendy; Dick Bernhard | Zendy; PérezRuiz Raúl | Zendy; Jacobi von Wangelin Axel | Zendy

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Application of Visible‐to‐UV Photon Upconversion to Photoredox Catalysis: The Activation of Aryl Bromides

Author(s) -

Majek Michal,

Faltermeier Uwe,

Dick Bernhard,

PérezRuiz Raúl,

Jacobi von Wangelin Axel

Publication year - 2015

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.201502698

Subject(s) - photochemistry , photon upconversion , aryl , chemistry , quenching (fluorescence) , butane , spectroscopy , catalysis , ultrafast laser spectroscopy , fluorescence , electron transfer , organic chemistry , alkyl , ion , physics , quantum mechanics

The activation of aryl–Br bonds was achieved by sequential combination of a triplet–triplet annihilation process of the organic dyes, butane‐2,3‐dione and 2,5‐diphenyloxazole, with a single‐electron‐transfer activation of aryl bromides. The photophysical and chemical steps were studied by time‐resolved transient fluorescence and absorption spectroscopy with a pulsed laser, quenching experiments, and DFT calculations.

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