Synlett
DOI: 10.1055/a-2642-9128
Letter

Visible-Light-Induced I2-Mediated Cyclization of ortho-Biarylchalcones of Naphthofuran Series toward Oxa[5]helicenes

Alexey V. Zakharov
1   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Moscow, Russian Federation
,
Eva E. Evsikova
1   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Moscow, Russian Federation
,
Polina D. Grebennikova
1   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Moscow, Russian Federation
,
Maria A. Krylova
1   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Moscow, Russian Federation
,
1   N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences Moscow, Russian Federation
› Institutsangaben

Gefördert durch: Russian Science Foundation RSF- 23-73-01123
Funding Information This work was supported by the Russian Science Foundation (RSF grant 23-73-01123).


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Abstract

This work presents a novel, eco-friendly, transition metal-free method for synthesizing oxa[5]helicenes via visible-light-induced photocyclization of ortho-biarylchalcones of naphthofuran series. It was found that the obtained compounds are highly stable to both UV (365 nm) and visible light (LED420) irradiation in the presence of atmospheric oxygen or molecular iodine.

Supplementary Material



Publikationsverlauf

Eingereicht: 15. Mai 2025

Angenommen nach Revision: 25. Juni 2025

Accepted Manuscript online:
25. Juni 2025

Artikel online veröffentlicht:
07. August 2025

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