Visible-Light-Driven Metal-Free and Photocatalyst-Free Intra-molecular Cyclization of Chalcones to Access Phenanthrenes.

Bibliographic Details
Title:	Visible-Light-Driven Metal-Free and Photocatalyst-Free Intra-molecular Cyclization of Chalcones to Access Phenanthrenes.
Authors:	Yi, Miaoyan^1,2 (AUTHOR), Zhang, Chen¹ (AUTHOR), Liao, Saihu² (AUTHOR), Sun, Bing¹ (AUTHOR) bing.sun@whut.edu.cn
Source:	Synlett. Feb2025, Vol. 36 Issue 3, p274-278. 5p.
Subject Terms:	CHALCONES, RING formation (Chemistry), PHENANTHRENE, PHOTOCATALYSIS, *FLUORESCENCE
Abstract:	We report a visible-light-driven metal-free and photocatalyst-free protocol for the synthesis of phenanthrenes through the intramolecular cyclization of chalcones. The transformation proceeds through light irradiation and base- and oxygen-based promotion, and enables the generation of a series of phenanthrenes. The further functionalization of an as-synthesized phenanthrene to afford a fluorescent molecule was explored. [ABSTRACT FROM AUTHOR]
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