Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 21, Issue 44, Pages 15496-15501Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201502698
Keywords
aryl halides; defunctionalization; organocatalysis; photocatalysis; triplet states; two-photon process
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Funding
- Marie Curie program of the E.U. [PIEF-GA-2013-625064]
- DFG Graduate School Photocatalysis
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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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