Highly emissive B←N unit containing four-coordinate C,N-Chelated organoboron compound for the detection of fluoride ions

Recent Advances in π-Conjugated N^C-Chelate Organoboron Materials

“…The same group showed that this process can be used to monitor on/off emission features upon the addition of different anions [85]. Yan et al [10] triazole ring. The same group showed that this process can be used to monitor on/off emission features upon the addition of different anions [85].…”

“…The same group showed that this process can be used to monitor on/off emission features upon the addition of different anions [85]. Yan et al [10] exploited the labile nature of the B ← N coordinate bond and developed a fluorescent probe 40 (Figure 18), which selectively detected fluoride anions (F -) in organic solvent. The authors proposed that in the presence of Fanions a competitive reaction (labile B ← N vs stable B-F bond) takes place leading to the formation of an open form with quenched emission.…”

An Efficient Ni/Pd Catalyzed Chemoselective Synthesis of 1,3,2‐Benzodiazaborininones from Boronic Acids and Anthranilamides

“…A mixture of 2-(3-bromophenyl)-2,3-dihydrobenzo[d] [1,3,2] diazaborinin-4(1H)-one (3 i, 1 mmol), (4-(tert-butyl)phenyl)boronic acid (1 mmol), K 3 PO 4 (1.0 mmol) NiBr 2 (PPh 3 ) 2 (0.05 mmol), PdCl 2 (0.05 mmol) in THF (2 ml) was stirred at room temperature for 12 h. The reaction was quenched with water and extracted with ethyl acetate for three times. The combined organic layers were dried over anhydrous MgSO 4 , concentrated under reduced pressure.…”

“…They have received significant attention due to their unique structure, physical properties and diverse applications in medicinal chemistry [1] and materials science. [2] They also play an important role in organic synthesis, catalysis, and biochemistry. [3] Furthermore, boron-containing N-heterocyclic compounds with valuable BÀ N structural units exhibited useful behavior in materials and biomedical research as fluorescent dyes [4] and biological labeling.…”

The Synthesis of Picolinamide-Supported Tetracoordinated Organoboron Complexes with Aggregation-Induced Emission Property

“…Taking advantage of the vacant p -orbitals of the boron atoms, the chelating complexation between π-conjugated ligands and -BR 2 units will generate tetracoordinated organoboron complexes containing X→B dative bonds that are able to lock the π-conjugated ligands. These modifications will enhance the molecular rigidity, extend the π-conjugation system, and thus afford molecules with superior photoluminescence properties ( Chen et al, 2017 ; Dou et al, 2017 ; Mellerup and Wang, 2019 ; Yan et al, 2019 ; Huang et al, 2020 ). Therefore, over the past decades, the synthesis, improvement, and application of these tetracoordinated organoboron complexes have attracted a continuing interest from organic and materials communities.…”