Photo- and thermochromic spirans. 35. Synthesis and photochromic properties of spiro[indoline-2,3′-pyrano[3,2-f]quinolines] and their cationic derivatives

New photochromic spiropyranoquinolines and their cationic derivatives have been synthesized. Quaternization of the quinoline fragment leads to significant enhancement of the thermal stability of the merocyanine isomers of these cationic spiropyrans.

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Veröffentlicht in:Chemistry of heterocyclic compounds (New York, N.Y. 1965) N.Y. 1965), 2012-06, Vol.48 (3), p.525-531
Hauptverfasser: Voloshin, N. A., Bezuglyi, S. O., Metelitsa, A. V., Solov’eva, E. V., Shepelenko, K. E., Minkin, V. I.
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Sprache:eng
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Zusammenfassung:New photochromic spiropyranoquinolines and their cationic derivatives have been synthesized. Quaternization of the quinoline fragment leads to significant enhancement of the thermal stability of the merocyanine isomers of these cationic spiropyrans.
ISSN:0009-3122
1573-8353
DOI:10.1007/s10593-012-1025-z