Search Results - "Khrustalev, Viktor N."
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Hybrid Macrocycles for Selective Binding and Sensing of Fluoride in Aqueous Solution
Published in Journal of organic chemistry (16-02-2018)“…Synthesis and anion binding properties of hybrid macrocycles containing ammonium and hydrogen bond donor groups are reported. Receptor properties were studied…”
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First 24-Membered Macrocyclic 1,10-Phenanthroline-2,9-Diamides-An Efficient Switch from Acidic to Alkaline Extraction of f -Elements
Published in International journal of molecular sciences (17-06-2023)“…A reaction of acyl chlorides derived from 1,10-phenanthroline-2,9-dicarboxylic acids with piperazine allows the preparation of the corresponding 24-membered…”
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The Asymmetric Addition of Trimethylsilyl Cyanide to Aldehydes Catalyzed by Chiral (Salen)Titanium Complexes
Published in Journal of the American Chemical Society (28-04-1999)“…The use of chiral (salen)TiCl2 complexes to induce the asymmetric addition of trimethylsilyl cyanide to aldehydes has been investigated. The complexes are…”
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Catalytic Asymmetric Synthesis of O-Acetylcyanohydrins from Potassium Cyanide, Acetic Anhydride, and Aldehydes, Promoted by Chiral Salen Complexes of Titanium(IV) and Vanadium(V)
Published in Helvetica chimica acta (01-10-2002)“…The utility of the chiral [Ti(μ‐O)(salen)]2 complexes (R)‐ and (S)‐1 (H2salen was prepared from (R,R)‐ or (S,S)‐cyclohexane‐1,2‐diamine and…”
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First example of cationic titanium (III) complexes with crown ether as catalysts for ethylene polymerization
Published in European polymer journal (05-05-2022)“…[Display omitted] •Ti(III) cationic complexes were first used to catalyze ethylene polymerization.•Activity in the presence of Et2AlCl/Bu2Mg up to 4.6 tonn…”
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Cage-like Fe,Na-Germsesquioxanes: Structure, Magnetism, and Catalytic Activity
Published in Angewandte Chemie International Edition (05-12-2016)“…A series of four unprecedented heterometallic metallagermsesquioxanes were synthesized. Their cage‐like architectures have a unique type of molecular topology…”
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Novel titanium(IV) diolate complexes with additional O‐donor as precatalyst for the synthesis of ultrahigh molecular weight polyethylene with reduced entanglement density: Influence of polymerization conditions and its implications on mechanical properties
Published in Applied organometallic chemistry (01-07-2021)“…New alkoxo‐titanium(IV) complexes with diolate ligand containing additional donor oxygen atom have been synthesized from readily available and scalable…”
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Unconventional Recyclization of Cotarnine under the Action of 1,3-Dimethylbarbituric Acid
Published in Heterocycles (2007)Get full text
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Isolation and Crystal Structures of Two Singlet Bis(Triarylamine) Dications with Nonquinoidal Geometries
Published in Journal of the American Chemical Society (15-02-2006)“…We report the first structural data for bis(diarylamine) “bipolarons”: we have isolated and crystallographically characterized salts of the dications obtained…”
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Synthesis and Structural Studies of (2-Oxo-2,3-dihydroimidazo[1,2-a]pyridin-3-yl)acetic Acids
Published in Heterocycles (2004)Get full text
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Cage-like Fe,Na-Germsesquioxanes: Structure, Magnetism, and Catalytic Activity
Published in Angewandte Chemie (05-12-2016)“…A series of four unprecedented heterometallic metallagermsesquioxanes were synthesized. Their cage‐like architectures have a unique type of molecular topology…”
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Productive Asymmetric Synthesis of All Four Diastereomers of 3-(trans-2-Nitrocyclopropyl)alanine from Glycine with (S)- or (R)-2-[(N-Benzylprolyl)amino]benzophenone as a Reusable Chiral Auxiliary
Published in European journal of organic chemistry (01-03-2003)“…All four diastereomers of 3‐(trans‐2‐nitrocyclopropyl)alanine (3) were prepared by asymmetrically induced α‐C alkylation of the glycine moiety in the [(S)‐ or…”
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Oxidative Activation of the Manganese Bis-vinylidene Complexes [(η5-C5R5)(CO)2MnCCPh]2 (R = H, Me) toward Addition of Nucleophiles
Published in Organometallics (22-12-2003)“…A new approach to the activation of transition metal bis-vinylidene (μ-1,3-butadiene-1,4-diylidene) complexes toward nucleophilic addition is proposed, based…”
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Facile and convenient electrochemical syntheses of novel multifunctional (catalytic, antioxidant and in vivo antimicrobial) phosphorylated chitosan derivatives
Published in European polymer journal (16-10-2024)“…[Display omitted] •We proposed simple and convenient method for phosphorylation of chitosan.•Phosphorylated chitosan catalyzes the glycidol oxirane ring…”
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Elaboration of a novel type of planar-chiral methylene bridged biphenols based on [2.2]paracyclophanes
Published in Tetrahedron: asymmetry (14-07-2000)Get full text
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A facile synthesis of 1-oxo-pyrrolo[2,1-a]isoquinolines
Published in Tetrahedron letters (01-03-2017)“…[Display omitted] •A novel approach towards polysubstituted pyrrolo[2,1-a]isoquinolines was developed.•Migration of the aryl group accompanies the target…”
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First 24-Membered Macrocyclic 1,10-Phenanthroline-2,9-Diamides—An Efficient Switch from Acidic to Alkaline Extraction of If/I-Elements
Published in International journal of molecular sciences (01-06-2023)“…A reaction of acyl chlorides derived from 1,10-phenanthroline-2,9-dicarboxylic acids with piperazine allows the preparation of the corresponding 24-membered…”
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Molecular structure, magnetic properties and catalytic activity in selective ethylene dimerization of nickel (II) complexes with bis(3,5-dimethylpyrazol-1-yl)methane
Published in Journal of molecular structure (15-04-2020)“…Nickel(II) complexes with neutral bidentate nitrogen-containing ligands are of great interest as promising precatalysts for the selective oligomerization of…”
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1,3-Phosphorotropic migration in the C super(3)NC super(5) triad of 1,4-benzodiazepines accompanied by isomerization of Ph sub(2)POC super(3)NC super(5) to Ph sub(2)P(O)C super(5)NC super(3)
Published in Tetrahedron letters (27-08-2014)“…It is demonstrated that phosphorotropic migration occurs in the C super(3)NC super(5) triad of 1,4-benzodiazepines, which is accompanied by the isomerization…”
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