Abstract
Indoline spirochromenes with condensed fragments in the indoline part of the molecules were synthesized. All of the compounds have photochromic properties. The introduction of a condensed fragment into the indoline part of the molecule leads to a bathochromic shift of both the long-wave and short-wave absorption bands of the photomerocyanine; the rate of the dark reaction does not change.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 104–109, January, 1988.
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Manakova, I.V., Gal'bershtam, M.A., Bobyleva, C.K. et al. Synthesis and photochromism of indolinospirochromenes with condensed fragments in the indoline part of the molecules. Chem Heterocycl Compd 24, 87–92 (1988). https://doi.org/10.1007/BF00475577
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DOI: https://doi.org/10.1007/BF00475577