4,7-Diarylbenzo[c][1,2,5]thiadiazoles as fluorophores and visible light organophotocatalysts

Dominic Taylor, Thomas Malcomson, Adilet Zhakeyev, Shengxian Cheng, Georgina M. Rosair, Jose Marques-Hueso, Zhengtao Xu, Martin J. Paterson, Scott J. Dalgarno*, Filipe Vilela*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
68 Downloads (Pure)


Electron donor-acceptor (D-A) systems based on the benzo[c][1,2,5]thiadiazole (BTZ) motif have been extensively researched for use in photovoltaics or as fluorescent sensors. However, their use as potential visible-light organophotocatalysts has not received any in-depth study. Here we report the synthesis, characterisation, and application of a library of 26 D-A compounds based on the BTZ group. By varying the donor groups whilst keeping the BTZ acceptor group the same, we have been able to systematically modify the photocatalyst's optoelectronic and photophysical properties. These photocatalysts were then validated using a Minisci-type decarboxylative alkylation of electron deficient heteroarenes as a test reaction under both batch and continuous flow conditions.

Original languageEnglish
Pages (from-to)5473-5484
Number of pages12
JournalOrganic Chemistry Frontiers
Issue number20
Early online date19 Aug 2022
Publication statusPublished - 21 Oct 2022


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