Transformations of trisubstituted CH-acids

Gololobov, Yu. G.; Krasnova, I. Yu.

doi:10.1134/s1070363215090017

Russ J Gen Chem

2015

DOI: 10.1134/s1070363215090017

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Transformations of trisubstituted CH-acids

Yu. G. Gololobov

I. Yu. Krasnova

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2024

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Halochromism of 2-indolinone fluorophore based on the deprotonation of an acidic C–H bond

Suzuki,

Yagi,

Maeda

et al. 2024

Chemistry Letters

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We have disclosed a new halochromic fluorescent dye based on the deprotonation from an acidic C–H bond. The dye consisting of a 2-indolinone skeleton and a benzothiazole ring exhibited an obvious red shift in its photoluminescence spectra in response to the presence of bases. Structural analyses with 1H NMR measurements and theoretical calculations suggested that the π-conjugated system of the dye was expanded by the deprotonation of the acidic C–H bond on the 2-indolinone skeleton. This structural change would contribute to the red shift of photoluminescence and accelerate the radiative decay from the excited state.

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Halochromism of 2-indolinone fluorophore based on the deprotonation of an acidic C–H bond

Suzuki,

Yagi,

Maeda

et al. 2024

Chemistry Letters

View full text Add to dashboard Cite

show abstract

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Transformations of trisubstituted CH-acids

Cited by 1 publication

References 41 publications

Halochromism of 2-indolinone fluorophore based on the deprotonation of an acidic C–H bond

Halochromism of 2-indolinone fluorophore based on the deprotonation of an acidic C–H bond

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