Abstract
The kinetics of photochromic transformations of spiropyrans of the indole series with various substituents in the 1 and 5 positions were studied. The existence of a photodecolorization reaction under the influence of activating UV light was proved, and the effect of substituents on the quantum yields of the photocoloration and photodecolorization reactions was studied.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1159–1161, September, 1971.
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Gordin, M.B., Gal'bershtam, M.A. Existence of a photodecolorization reaction of the colored form of spiropyrans under the influence of initiating UV irradiation. Chem Heterocycl Compd 7, 1089–1091 (1971). https://doi.org/10.1007/BF00510007
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DOI: https://doi.org/10.1007/BF00510007