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Updated: May 1, 2026

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Facile synthesis of highly fluorescent BF₂ complexes bearing isoindolin-1-one ligand
Naixun Gao1, Chi Cheng, Changjiang Yu
1Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, China 241000. haoehong@mail.ahnu.edu.cn jiao421@mail.ahnu.edu.cn.
Abstract:
Stable organoboron complexes as classic fluorescent molecules have found various applications in biotechnology and material sciences. A new class of isoindolin-1-one based BF2 complexes containing pyridine or benzothiazole groups has been prepared from a facile "one-pot" reaction and characterized structurally, spectroscopically and electrochemically. These novel dyes show broad and intense absorption and emission bands in solution with high fluorescence quantum yields. Significantly larger Stokes shifts and higher photostability were observed for these dyes in comparison to those of classical BODIPYs.
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