A5023555572- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Coordination Chemistry and Organometallics
- Synthesis of Tetrazole Derivatives
- Synthesis and biological activity
- Synthesis and Characterization of Heterocyclic Compounds
- Chemical Reaction Mechanisms
- Phenothiazines and Benzothiazines Synthesis and Activities
- Chemical synthesis and alkaloids
- Molecular Spectroscopy and Structure
- Ionic liquids properties and applications
- Quinazolinone synthesis and applications
- Synthetic Organic Chemistry Methods
- Energetic Materials and Combustion
- Asymmetric Synthesis and Catalysis
- Synthesis and Characterization of Pyrroles
- Sulfur-Based Synthesis Techniques
- Extraction and Separation Processes
- Polymer Synthesis and Characterization
- Crystal structures of chemical compounds
- Synthesis and Biological Evaluation
- Catalytic C–H Functionalization Methods
- Synthesis and characterization of novel inorganic/organometallic compounds
- Catalytic Alkyne Reactions
St Petersburg University
2021-2023
The synthesis of 5-aryl- and 4-aryl/hetaryl/cyclopropyl/alkynyl-5-aryl-1H-pyrrole-2,3-diones by formal isomerization isoxazole-5-carbaldehydes mediated Mo(CO)6 in wet MeCN has been developed. resulting 1H-pyrrole-2,3-diones are good precursors for substituted 1H-pyrrolo[2,3-b]quinoxalines.
This study of the interaction system binucleophilic 3-substituted 4-amino-4H-1,2,4-triazole-5-thiols and 3-phenyl-2-propynal made it possible to develop a new approach synthesis such isomeric classes as 7-benzylidene-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine 8-phenyl-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazepine. Among 20 compounds studied in vitro against influenza A/Puerto Rico/8/34 (H1N1) virus, half them demonstrated selectivity index (SI) 10 or higher one...
Triphenylpnictogens were oxidized to access diphenylpnictioginic acids Ph2XOOH (X = P, As, Sb, Bi). It was shown that oxidation with chloramine-T does not lead the cleavage of a C-pnictogen bond. The preliminary reductive sodium in liquid ammonia followed by hydrogen peroxide successfully utilised for synthesis diphenylphosphinic and diphenylarsinic acids. solid state (by means XRD), all diphenylpnictoginic form polymeric chains. Diphenylbismuthinic diphenylantimonic covalent adducts, while...
Abstract This work is devoted to investigations of the influence O–H···Se(–) hydrogen bonds on electronic shells selenolate R–Se(–) fragment (R═CH 3 ). The geometric, energetic and nuclear magnetic resonance (NMR) spectral parameters for various conformers CH Se(–)⋯(H 2 O) n clusters with = 0–6 were calculated at CCSD/aug‐cc‐pVDZ level theory. For anion Se(–) solvation free energy was calculated, water media it equal −71.41 kcal/mol. proportionality coefficients between QTAIM (3; −1) bond...
Highly purified 5-vinyl-1H-tetrazole was synthesized, which is in great demand modern medicine and industry as a monomer for obtaining nitrogen-rich macromolecular compounds reagent the complete synthesis of biological compounds. The molecular structure studied experimentally with sequential X-ray diffraction analysis theoretically ab initio quantum chemical calculations. data from differential scanning calorimetry, nuclear magnetic resonance (1H, 13C, 1H-15N, HMBC), high-resolution mass...
3-(5-Phenyl-2H-tetrazol-2-yl)pyridine was synthesized by treating 5-phenyl-1H-tetrazole with pyridin-3-ylboronic acid under Chan–Evans–Lam coupling conditions. The structure and identity were confirmed 1H, 13C-NMR spectroscopy, IR UV–Vis high-resolution mass spectrometry, TLC. molecular studied experimentally sequential X-ray diffraction analysis theoretically DFT B3LYP quantum chemistry calculation.
The cascade of peri -interactions facilitating the hydride shift in 1,8-bis(dimethylamino)naphthalene ortho -ketimines expands potential heterocyclization methods triggered by transfer.
Molecular design by means of quantum-chemistry to improve an acid catalysed acyl-migration reaction through protonated amide nitrogen atom in carboxamides.