Issue 34, 2023

Synthesis of fluorescent aromatic species via ring transformation of α-pyranones and their application in OLEDs, chemosensors, and cell imaging

Abstract

Donor–acceptor substituted aromatic systems are highly regarded organic fluorophores with unique photophysical and electrochemical properties. These molecules offer a wide range of opportunities for advancing modern science through easily modifiable molecular structures. In recent years, there has been growing interest in developing convenient methodologies for synthesising these fluorescent compounds. The carbanion-induced ring transformation of α-pyranones is one such approach that has yielded numerous D–π–A dyads based on aromatic systems with widespread applications as effective fluorophores. Moreover, this method provides explicit functionalization options, allowing fine-tuning of optoelectronic properties according to specific requirements without requiring complex reaction setups or transition metal catalysts/reagents, which makes it more advantageous over other conventional approaches. This review discusses the synthesis of polycyclic aromatic compounds functionalized with donor–acceptor groups via ring transformation reactions of α-pyranone derivatives induced with various carbon nucleophiles, along with their applications in OLEDs, chemosensors, and cell imaging.

Graphical abstract: Synthesis of fluorescent aromatic species via ring transformation of α-pyranones and their application in OLEDs, chemosensors, and cell imaging

Article information

Article type
Perspective
Submitted
29 мај 2023
Accepted
27 јул. 2023
First published
04 авг. 2023

New J. Chem., 2023,47, 15827-15846

Synthesis of fluorescent aromatic species via ring transformation of α-pyranones and their application in OLEDs, chemosensors, and cell imaging

M. Krishnan and F. V. Singh, New J. Chem., 2023, 47, 15827 DOI: 10.1039/D3NJ02498A

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