Singlet oxygen-responsive photorelease of tyramine

Dong Yeun Jeong, Seung Yeon Yi, Youngmin You

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A system capable of photoreleasing tyramine has been developed. The photodonor system consists of an isoindole cage of tyramine and a biscyclometalated Ir(III) complex singlet oxygen (1O2) photosensitizer. Photoirradiation at a wavelength of 365 nm produces tyramine, as evidenced by mass spectrometry and 1H NMR spectroscopy. The photorelease proceeds through two steps involving the formation of a Diels–Alder-type [2 + 4] cycloadduct of 1O2, followed by the slow and spontaneous decomposition of the adduct into tyramine and 2-benzoylbenzophenon.

Original languageEnglish
Pages (from-to)1497-1500
Number of pages4
JournalBulletin of the Korean Chemical Society
Issue number11
StatePublished - Nov 2021

Bibliographical note

Funding Information:
This work was supported by the Midcareer Research Program (NRF‐2019R1A2C2003969).

Publisher Copyright:
© 2021 Korean Chemical Society, Seoul & Wiley-VCH GmbH


  • iridium complex
  • photocage
  • photodelivery
  • singlet oxygen
  • tyramine


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