Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 9, Issue 18, Pages 6196-6199Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1ob05703k
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- Deutsche Forschungsgemeinschaft (DFG)
- Fonds der Chemischen Industrie
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Novel bichromophoric spirocyclic indolones have been synthesized by an insertion-coupling-isomerization-Diels-Alder domino reaction. The emission colors are strongly affected by the substituents: N-Boc leads to intense blue fluorescence, N-dansyl causes turquoise emission, whereas a 1-anthryl substituent on the butadiene results in yellow luminescence. The latter behavior is rationalized by TDDFT computations as a result of significant geometrical changes.
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