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2H-Bis-1,2,3-triazolo-isoquinoline: Design, Synthesis, and Photophysical Study.

Biligma TsyrenovaVictor N KhrustalevValentine G Nenajdenko
Published in: The Journal of organic chemistry (2020)
An efficient three-step synthesis of a new heterocyclic system is described wherein the 2H-bis([1,2,3]triazolo)[5,1-a:4',5'-c]isoquinoline ring system is elaborated using a simple synthetic strategy. The approach permits the preparation of target compounds in high yields using readily available arylhydrazines and o-alkynylbenzaldehydes as starting materials. The photophysical properties of the prepared heterocycles were studied to demonstrate that the prepared compounds are attractive blue-emitting fluorophores, exhibiting quantum yields up to 98% and Stokes shifts up to 67 nm. A strong effect of the steric hindrance on the absorption and emission spectra was revealed.
Keyphrases
  • fluorescent probe
  • ionic liquid
  • light emitting
  • photodynamic therapy
  • molecular dynamics
  • energy transfer
  • solid state
  • molecularly imprinted