A5019915031- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Quinazolinone synthesis and applications
- Synthesis and Characterization of Heterocyclic Compounds
- Synthesis and Biological Evaluation
- Phenothiazines and Benzothiazines Synthesis and Activities
- Luminescence and Fluorescent Materials
- Organic Light-Emitting Diodes Research
- Crystallography and molecular interactions
- Photochemistry and Electron Transfer Studies
- Radical Photochemical Reactions
- Organic Electronics and Photovoltaics
- Synthesis and Reactivity of Heterocycles
- Synthesis and Properties of Aromatic Compounds
- Porphyrin and Phthalocyanine Chemistry
- Molecular Sensors and Ion Detection
- Catalytic C–H Functionalization Methods
- Molecular Junctions and Nanostructures
- bioluminescence and chemiluminescence research
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Fluorine in Organic Chemistry
- Nonlinear Optical Materials Studies
- Photodynamic Therapy Research Studies
Ural Federal University
2015-2024
Abstract A series of V‐shaped luminophores containing electron‐withdrawing quinoxaline core and arylthienyl donor fragments at positions 2 3 has been successfully synthesized. Their photophysical properties in two solvents as well halochromism have studied, the ability 4‐diethylaminophenyl derivative to function colorimetric luminescent pH sensor demonstrated with significant color changes luminescence switching upon introduction acid.
Two series of novel [1,2,4]triazolo[4,3-
The synthesis of a series push–pull aryl and arylethynyl 2‐(thiophen‐2‐yl)quinazoline derivatives is presented. photophysical properties the newly generated compounds are also described. Functionalization (2‐thienyl)quinazoline fluorophore at 5′‐position with moieties was performed using bromination subsequent palladium‐catalyzed cross‐coupling reactions. Optical studies revealed that 4‐(diethylamino)phenyl 4‐(diphenylamino)phenyl emit green light upon irradiation, whereas their 4‐(9 H...
Amino-[1,1']-biphenyl-containing 3-aryl-[1,2,4]triazolo[4,3-c]quinazoline derivatives with fluorescent properties have been designed and synthesized. The type of annelation the triazole ring to pyrimidine one has unambiguously confirmed by means an X-ray diffraction (XRD) method; molecules are non-planar, aryl substituents form pincer-like conformation. UV/Vis photoluminescent target compounds were investigated in two solvents different polarities a solid state. samples emit broad range...
Abstract A series of novel 2‐(2‐pyridyl)quinazoline luminophores containing a donor aryl fragment at position 4 and methyl or methoxy groups benzene ring has been synthesized by efficient three‐step route. The linear optical properties have studied UV / Vis absorption photoluminescence spectra in two solvents. We revealed that introduction additional group the replacement substituents with ones lead to sequentially shift emission maximum blue region. 9 H ‐Carbazol‐9‐yl‐containing derivative...
Two series of novel [1,2,4]triazolo[4,3-c]- and [1,2,4]triazolo[1,5-c]quinazoline fluorophores with 4’-amino[1,1′]-biphenyl residue at position 5 have been prepared via Pd-catalyzed cross-coupling Suzuki-Miyaura reactions. The treatment 2-(4-bromophenyl)-4-hydrazinoquinazoline orthoesters in solvent-free conditions or absolute ethanol leads to the formation [4,3-c]-annulated triazoloquinazolines, whereas [1,5-c] isomers are formed acidic media as a result Dimroth...
Abstract A series of novel V‐shaped luminophores containing electron‐withdrawing dibenzo[ f,h ]quinoxaline core and arylthienyl donor fragments at positions 2 3 has been synthesized. The absorption spectra (UV/vis) were recorded in several solvents, whereas emission solutions powders. solvatochromism as well halochromism obtained compounds was also explored. Electronic‐structure calculations using quantum‐chemistry methods performed to further analyse experimental results. All...
Design and synthesis of 2-(aryl/thiophen-2-yl)quinazolin-4(3H)-ones 4-cyano-2-arylquinazolines with Et2N-, Ph2N- or carbazol-9-yl- electron donating fragment are described. The key photophysical properties these compounds have been studied by UV/Vis absorption fluorescence spectroscopy in solvents different polarity (toluene MeCN). 2-(Aryl/thiophen-2-yl)quinazolin-4(3H)-ones show blue-green region toluene solution quantum yields up to 89% the case...
2-Thienyl/phenyl substituted quinazolin-4(3<italic>H</italic>)-ones were converted into 4,5-diphenyl-7<italic>H</italic>-thieno[2′,3′:3,4]pyrido[2,1-<italic>b</italic>]quinazolin-7-ones or amide alcoholysis product <italic>via</italic> Rh(<sc>iii</sc>)-catalyzed reaction of with diphenylacetylene.