A5054022193- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Supramolecular Chemistry and Complexes
- Click Chemistry and Applications
- Nuclear Physics and Applications
- Nuclear physics research studies
- Quantum, superfluid, helium dynamics
- Chemical Synthesis and Analysis
- Atomic and Subatomic Physics Research
- Luminescence and Fluorescent Materials
- Radioactive Decay and Measurement Techniques
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Chemical Reactions and Isotopes
- Advanced Chemical Physics Studies
- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Molecular Sensors and Ion Detection
- Nuclear reactor physics and engineering
- Radiation Therapy and Dosimetry
- Particle accelerators and beam dynamics
- Catalytic Processes in Materials Science
- DNA and Nucleic Acid Chemistry
- Crystallography and molecular interactions
- Fluorine in Organic Chemistry
Lomonosov Moscow State University
2015-2025
Moscow State University
2019-2021
Faculty (United Kingdom)
2021
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
1963-1984
Russian Academy of Sciences
1978
Abstract It is found that CF 3 SO H/(CF CO) 2 O‐mediated cross‐acylation acetic acid with bulky substituted acids RCH COOH (R = i Pr, t Bu, 1‐adamantyl) proved to be the simple and convenient method for synthesis of lipophilic dehydroacetic homologues. The conditions deacylation symmetrical α‐pyrones subsequent acylation adamantyl have been developed, leading an expansion available derivatives acid. has also shown adamantylacetone readily formed by malonic Enamines derived from obtained show...
A large series of narrow-rim 4-R-1-triazolated calix[4]arenes was prepared, and these compounds were compared in terms their cation-binding ability with the ‘inverted’ 1-R-4-triazolated calix[4]arenes.
Copper(I)-catalyzed addition of limited amounts azides to multiple alkynes, which led statistical mixtures triazole/acetylene derivatives or, in other cases, resulted preferred formation triazoles, was studied at pre-organizable calixarene platforms bearing up four propargyl groups. Depending on structures and reaction conditions, the unprecedented specific or selective exhaustively triazolated calixarenes a complete loss selectivity were observed. Both autocatalytic copper activation local...
Abstract Cone calix[4]arenes and calix[6]arenes bearing two, three, four short peptide units each having two chiral carbon atoms were prepared. The syntheses performed by using an efficient modular approach that includes the Ugi preparation of azido‐peptide followed its reactions with propargylated calixarenes under CuAAC (Cu I ‐catalyzed azide–alkyne cycloaddition) conditions. three novel multitopic hosts probed for their ability to bind metal ions UV titration, showed highest complexation...
Diverse calixarene 1,3-diketones including those having additional triazole or crown ether functionalities can be readily prepared by acylation of magnesium enolates acetophenones with calixarene-based 1-acylbenzotriazoles.
Reaction of calixarene oligo(azides) with alkynes taken in deficiency lead selectively to oligo(triazoles) under Cu(<sc>i</sc>) catalysis. Same azides react intramolecularly copper-free conditions forming 1,5-substituted triazole bridges.
Diverse narrow-rim derivatives can be easily prepared from <italic>p</italic>-sulfonatocalix[4]arenes using the propargylation/CuAAC reaction sequence.
The readily available azobenzene/stilbene-linked bis(calix[4]arenes) undergo longitudinal shrinking/stretching upon irradiation/heating due to E / Z isomerization of both linkers, or may intramolecular [2 + 2]-photocycloaddition.
2,2′-Bisindole bridges can be easily created at (thia)calixarene cores providing the molecules with multiple functionalities for application in supramolecular chemistry.
Calix[4]arene-based bis(alkynes) and bis(azides) react with each other under thoroughly tuned CuAAC conditions produce diverse biscalixarene semitube assemblies linked by two triazole units, which are capable of binding transition metal cations.
Triazolated triscalixarene semitubes with different mutual arrangements of two bistriazole sites can be assembled by a four-fold or stepwise CuAAC from calix[4]arenes having four 2-azidoethyl or/and propargyl groups in their structures.
Triazolated calix[4]semitubes comprising two or three calixarene cores and crownether loop(s) form (hetero)multinuclear Ag + /K complexes operate as molecular switches depending on the mutual arrangement of receptor sites in molecules.
A novel method of producing short-chain acetals <italic>via</italic> tandem hydroformylation–acetalization under biphasic conditions is developed.
Conventional cyclometalation of calix[4]arene bis(aryltriazoles) with iridium(III) chloride hydrate leads to unique meso architectures in which the Ir2Cl2 core is cross-bound by two (C^N)2 ligands, allows further replacement bridges ancillary ligands while maintaining dinuclear structures complexes having independent or coupled iridium pairs.
We have studied $^{4}\mathrm{He}$-$p$ collisions at a $^{4}\mathrm{He}$ incident momentum of 8.56 GeV/c using the 1 m Dubna bubble chamber. The $p$--- elastic scattering, coherent $p+^{4}\mathrm{He}\ensuremath{\rightarrow}N+^{4}\mathrm{He}+\ensuremath{\pi}$ production and breakup reaction $p+^{4}\mathrm{He}\ensuremath{\rightarrow}p+^{3}\mathrm{He}+n$ been investigated. Cross sections features are presented. From reaction, subsamples events in which $^{3}\mathrm{He}$ or $n$ appear as...
The calixarenes, 5,17-di-bromo-26,28-dihy-droxy-25,27-dipropynyloxycalix[4]arene (C34H26Br2O4, 1), 5,17-di-bromo-26,28-dipropoxy-25,27-dipropynyloxycalix[4]arene (C40H38Br2O4, 2) and 25,27-bis-(2-azido-eth-oxy)-5,17-di-bromo-26,28-di-hydroxy-calix[4]arene (C32H28Br2N6O4, 3) possess a pinched cone mol-ecular shape for 1 3, 1,3-alternate compound 2. In calixarenes the conformations are additionally stabilized by intra-molecular O-H⋯O hydrogen bonds, while in calixarene 2 Br⋯Br inter-actions...