Diarenofuran[b]-fused BODIPYs: One-Pot SNAr-Suzuki Synthesis and Properties
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Summary
This summary is machine-generated.We developed a one-pot method to synthesize novel diarenofuran[b]-fused BODIPYs efficiently. These compounds exhibit excellent near-infrared (NIR) fluorescence and potential for advanced applications.
Area Of Science
- Organic Chemistry
- Materials Science
- Photophysics
Background
- Boron-dipyrromethene (BODIPY) dyes are known for their photophysical properties.
- Developing novel BODIPY derivatives with tunable characteristics is crucial for advanced applications.
- Near-infrared (NIR) emitting fluorophores are of significant interest for various technological uses.
Purpose Of The Study
- To synthesize a new class of diarenofuran[b]-fused BODIPY derivatives.
- To investigate the photophysical and electrochemical properties of these novel compounds.
- To explore their potential for applications requiring efficient NIR emission.
Main Methods
- A one-pot synthesis integrating regioselective tetrahalogen-BODIPY and o-hydroxyphenylboronic acid.
- Utilizing S<sub>N</sub>Ar nucleophilic substitution and Suzuki coupling reactions.
- Characterization using X-ray structure analysis, spectroscopy, and electrochemistry.
Main Results
- Successful synthesis of diarenofuran[b]-fused BODIPYs (DBFB1-9) in high yields (85-95%) and short reaction times (0.5-1.0 h).
- X-ray analysis revealed a rigid, planar 'butterfly' conformation for selected derivatives.
- Compounds exhibit strong NIR absorption/emission, high fluorescence quantum yields (up to 89%), and tunable HOMO-LUMO levels.
- DBFB9, with an extended π-system, showed significant red shifts (absorption 623 nm, emission 635 nm) while maintaining high fluorescence (80%).
Conclusions
- The developed one-pot methodology provides efficient access to novel diarenofuran[b]-fused BODIPYs.
- These BODIPY derivatives possess excellent photophysical properties, including strong NIR emission and high fluorescence quantum yields.
- The tunable electronic structure and robust fluorescence make them promising candidates for applications in optoelectronics and bioimaging.
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