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

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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Bibliographic Details
Published inChemistry of heterocyclic compounds (New York, N.Y. 1965) Vol. 48; no. 9; pp. 1361 - 1370
Main Authors Voloshin, N. A., Solov’eva, E. V., Bezugliy, S. O., Metelitsa, A. V., Minkin, V. I.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.12.2012
Springer Nature
Springer
Subjects
Chemistry
Chemistry and Materials Science
Chemistry, Organic
Organic Chemistry
Pharmacy
Physical Sciences
Science & Technology
spiropyran
4,6-dihydroxy-5-methylisophthalaldehyde
merocyanine
photochromism
absorption spectra
molar extinction coefficient
MEROCYANINES
ENANTIOMERS
ISOMERIZATION
BARRIERS
SEPARATION
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Summary: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.
ISSN:0009-3122
1573-8353
DOI:10.1007/s10593-012-1145-5