A synthesis is reported for a new photochromic indoline bisspiropyran salt containing a quinoline fragment. This compound exists as a racemic mixture. The photochromic properties of this symmetrical bisspiropyran were studied.
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This work was carried out with the financial support of the Russian Foundation for Basic Research (grant 12-03-90018-Bel-a) and the Grants Council of the President of the Russian Federation (grant NSh 927.2012.3).
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*For Communication 35, see [1].
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 1172-1179, July, 2012.
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Khalanskiy, K.N., Alekseenko, Y.S., Lukyanov, B.S. et al. Photo- and thermochromic spirans 36.* Synthesis, structure and photochromic properties of 7',7"-{1,4-phenylenedi(methylene)-bis(5-chloro-1,3,3-trimethyl-1,3-dihydrospiro-[indole-2,3'-pyrano[3,2-f]quinolinium])} diiodide. Chem Heterocycl Comp 48, 1090–1097 (2012). https://doi.org/10.1007/s10593-012-1114-z
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DOI: https://doi.org/10.1007/s10593-012-1114-z