4.1 Article

Photo- and thermochromic spirans 37.* New symmetrical bisspiropyrans of the indoline series

Journal

CHEMISTRY OF HETEROCYCLIC COMPOUNDS
Volume 48, Issue 9, Pages 1361-1370

Publisher

SPRINGER
DOI: 10.1007/s10593-012-1145-5

Keywords

4,6-dihydroxy-5-methylisophthalaldehyde; merocyanine; spiropyran; absorption spectra; molar extinction coefficient; photochromism

Funding

  1. Ministry of Education and Science of the Russian Federation [P2435]
  2. Grants Council of the President of the Russian Federation [NSh-3233.2010.3]
  3. Russian Foundation for Basic Research [09-03-00813]

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New symmetrical bisspiropyrans of the indoline series, which have photochromic properties and are characterized by substantially higher absorption capacity of cyclic isomers in comparison to the monospiropyrans, were obtained on the basis of 4,6-dihydroxy-5-methylisophthalaldehyde.

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