Photosensitizer-free visible light-mediated gold-catalysed: Cis -difunctionalization of silyl-substituted alkynes

Jie Ren Deng, Wing Cheung Chan, Nathanael Chun-Him Lai, Bin Yang, Chui Shan Tsang, Ben Chi-Bun Ko, Sharon Lai-Fung Chan, Man Kin Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

58 Citations (Scopus)


A new photosensitizer-free visible light-mediated gold-catalysed cis-difunctionalization reaction is developed. The reaction was chemoselective towards silyl-substituted alkynes with excellent regioselectivity and good functional group compatibility, giving a series of silyl-substituted quinolizinium derivatives as products. The newly synthesized fluorescent quinolizinium compounds, named JR-Fluor-1, possessed tunable emission properties and large Stokes shifts. With unique photophysical properties, the fluorophores have been applied in photooxidative amidations as efficient photocatalysts and cellular imaging with switchable subcellular localization properties.
Original languageEnglish
Pages (from-to)7537-7544
Number of pages8
JournalChemical Science
Issue number11
Publication statusPublished - 1 Jan 2017

ASJC Scopus subject areas

  • General Chemistry


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