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Indoline spiropyrans containing benzo[f]coumarin moiety annulated to the 2H-pyran cycle were synthesized. The obtained compounds exist in solutions as a tautomeric mixture of their spirocyclic and merocyanine forms. The spiro… Click to show full abstract
Indoline spiropyrans containing benzo[f]coumarin moiety annulated to the 2H-pyran cycle were synthesized. The obtained compounds exist in solutions as a tautomeric mixture of their spirocyclic and merocyanine forms. The spiro form exhibits an enhanced resistance to UV irradiation and does not rearranges into the merocyanine isomer in the temperature range of 278–303 K.
Keywords:
spiropyrans based;
synthesis structure;
indoline spiropyrans;
structure indoline;
benzo coumarin
Journal Title: Russian Chemical Bulletin
Year Published: 2020
Link to full text (if available)
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Journal Title: Russian Chemical Bulletin
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!