Description

A new class of 5-aryl-3-((E)-3-phenylallylidene)-2(3H)-furanones (3a-f) derivatives was synthesised and thoroughly characterised using 1H NMR, FT-IR, and elemental analysis. The absorption and emission spectra of prepared compounds (3a-f) have been conducted in ten different solvents with different polarities. The emission spectra for all synthesized derivatives are the same in shape, with a large red shift being recorded with increasing solvent polarity. Additionally, the quantum yield decreases more than 20-fold from toluene to water. Due to the resonance structures of such derivatives, the electronegative oxygen atom in the unsaturated carbonyl fragment can form hydrogen bonds with protic solvents.

URL

https://scholar.google.com/scholar?hl=ar&as_sdt=0%2C5&q=Synthesis+and+Photophysical+Properties+of+Some+New+2%283H%29-Furanone+Derivatives&btnG=

DOI

https://doi.org/10.1016/j.molstruc.2022.134543

Brief

Furanones are five-membered heterocyclic compounds that naturally occur in plants. Many natural products and synthetic compounds containing furanone ring systems have been found to exhibit a broad spectrum of pronounced and useful biological activities.

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