Abstract
New photochromic 5′-(1,3-benzoxazol-2-yl)-substituted spiro[indoline-naphthopyrans] exhibiting luminescent properties in the spirocyclic form were synthesized. Their reverse thermal reaction barrier decreases with the increase in the electron-withdrawing properties of substituent in the indoline fragment.
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Dedicated to Academician of the Russian Academy of Sciences O. N. Chupakhin on the occasion of his 80th birthday.
For Part 9, see Ref. 1.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1373–1377, June, 2014.
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Voloshin, N.A., Chernyshev, A.V., Solov’eva, E.V. et al. Spiropyrans and spirooxazines 10. Synthesis of photochromic 5′-(1,3-benzoxazol-2-yl)-substituted spiro[indoline-naphthopyrans]. Russ Chem Bull 63, 1373–1377 (2014). https://doi.org/10.1007/s11172-014-0605-8
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DOI: https://doi.org/10.1007/s11172-014-0605-8