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87 results on '"Kolesnikova TO"'

3. ChemInform Abstract: Alkylation of Tetrahydropyrimidine-2-thiones with Ethyl Chloroacetate

Author

A. K. Shiryaev, N. G. Kolesnikova, N. M. Kuznetsova, and Eugenia A. Lashmanova

Subjects
chemistry.chemical_compound, chemistry, General Medicine, Ethyl chloroacetate, Alkylation, Medicinal chemistry
Abstract

Conditions for the selective S-alkylation of tetrahydropyrimidine-2-thiones (I) with chloroacetate (II) are established that prevent a subsequent cyclization.

Published
2014

4. ChemInform Abstract: Unusual Reaction of 1H-Perimidines with Sodium Azide and Benzoyl Hydrazine in Polyphosphoric Acid

Author

A. S. Lyakhovnenko, A. S. Kolesnikova, Inna V. Aksenova, Alexander V. Aksenov, and I. V. Goncharov

Subjects
inorganic chemicals, chemistry.chemical_compound, Chemistry, Hydrazine, Polymer chemistry, technology, industry, and agriculture, food and beverages, Sodium azide, General Medicine, complex mixtures, humanities
Abstract

Previously unknown tetraazapyrene derivatives of type (III) are prepared in a one-pot procedure.

Published
2013

5. ChemInform Abstract: Synthesis of Pyridine-Containing α-Hydrazino Phosphonates by Two-Component Catalytic Procedure

Author

Elena D. Matveeva, Nikolai S. Zefirov, Tatyana A. Podrugina, and I. N. Kolesnikova

Subjects
chemistry.chemical_compound, Aluminium chloride, biology, Chemistry, Component (thermodynamics), Pyridine, Polymer chemistry, medicine, Tetra, General Medicine, biology.organism_classification, Catalysis, medicine.drug
Abstract

The title compounds are obtained by reaction of hydrazones of pyridine series with diethyl phosphite in the presence of [tetra(tert-butyl)-phthalocyanine]aluminium chloride as catalyst.

Published
2011

6. ChemInform Abstract: Synthesis of α-Hydrazino Phosphonates from L-Amino Acid- and L-Glutathione-Derived Hydrazones

Author

I. N. Kolesnikova, Elena D. Matveeva, and Nikolai S. Zefirov

Subjects
inorganic chemicals, chemistry.chemical_classification, Aluminium chloride, biology, Chemistry, General Medicine, Glutathione, biology.organism_classification, Medicinal chemistry, Amino acid, Cyclic ketone, chemistry.chemical_compound, Phthalocyanine, medicine, Tetra, medicine.drug
Abstract

[Tetra(tert-butyl)phthalocyanine]aluminium chloride catalyzes the hydrophosphorylation of cyclic ketone hydrazones derived from hydrazides of L-amino acids as well as glutathione.

Published
2011

15. ChemInform Abstract: Interaction of Polyfluoroaromatic Imidoyl Chloride Derivatives with Compounds containing Nitrogen-Carbon Multiple Bonds in the Presence of AlCl3

Author

I. V. Kolesnikova, Yu. V. Gatilov, T. V. Ribalova, T. D. Petrova, Vyacheslav E. Platonov, and I. Yu. Bagryanskaya

Subjects
Imidoyl chloride, chemistry.chemical_element, General Medicine, Ring (chemistry), Medicinal chemistry, Toluene, Chloride, Nitrogen, Cycloaddition, chemistry.chemical_compound, Benzonitrile, chemistry, medicine, Benzamide, medicine.drug
Abstract

Interactions of polyfluoroaromatic imidoyl chloride derivatives with compounds containing nitrogen–carbon multiple bond in the presence of AlCl3 proceed as a cycloaddition type process and lead to five- or six-membered N-containing ring systems. N-(p-R–tetrafluorophenyl)carbonimidoyl dichlorides (R = F, CH3) react with N-pentafluorophenyltrichloroacetimidoyl chloride and AlCl3 to give in good yields 1-(p-R–tetrafluorophenyl)-3-pentafluorophenyl-4,4,5,5-tetrachloro-2-imidazolidones. N-Pentafluorophenyltrichloroacetimidoyl chloride “dimerizes” by heating with AlCl3 to 1,3-bis(pentafluorophenyl)-4,5-dichloro-2-imidazolone. This compound was also obtained from 1,3-bis(pentafluorophenyl)-4,4,5,5-tetrachloro-2-imidazolidone under the action of AlCl3. Heating of 1,3-bis(pentafluorophenyl)-4,4,5,5-tetrachloro-2-imidazolidone with AlCl3 in toluene leads to 1,3-bis(pentafluorophenyl)-4,5-dichloro-2-imidazolone and its 5-tolyl derivatives as a result of a reaction with toluene. Interaction of N-pentafluorophenylcarbonimidoyl dichloride with benzonitrile and AlCl3 leads to 1-pentafluorophenyl-4,6-diphenyl-1,3,5-triazine-2-one along with N-pentafluorophenyl-N′-benzoylurea and an N-pentafluorophenylurea complex with benzamide.

Published
2010

17. Desmethylubiquinone Q2 from the Far-Eastern Ascidian Aplidium glabrum: Structure and Synthesis

Author

N. N. Balaneva, Ann M. Bode, Zigang Dong, Larisa K. Shubina, Valentin A. Stonik, Pavel S. Dmitrenok, Sergey N. Fedorov, Sophia A. Kolesnikova, and Oleg S. Radchenko

Subjects
Chemistry, Stereochemistry, Organic Chemistry, Drug Discovery, Mass spectrum, General Medicine, Aplidium glabrum, Biochemistry
Abstract

Two new diprenylquinones, glabruquinone A (desmethylubiquinone Q 2 ) having cancer preventive properties and its minor isomer Glabruquinone B were isolated from the ascidian Aplidium glabrum . Their structures have been elucidated by NMR and mass spectra and confirmed by synthesis.

Published
2005

41. ChemInform Abstract: Reactions of N-Polyfluorophenylcarbonimidoyl Dichlorides with Primary and Secondary Amines. Kinetics and Mechanism. Synthesis of Polyfluorinated Carbodiimides, Chloroformamidines, Guanidines, and Benzimidazoles

Author

V. A. Savelova, V. A. Mikhailov, T. D. Petrova, Alexey A. Popov, V. E. Platonov, and I. V. Kolesnikova

Subjects
Hydrolysis, Primary (chemistry), Chemistry, Kinetics, medicine, General Medicine, Mechanism synthesis, Urea derivatives, Chloride, Medicinal chemistry, medicine.drug
Abstract

Reaction of the carbonimidoyl chloride (I) with the aliphatic primary amines (II) gives the carbodiimides (III) which are hydrolyzed, yielding urea derivatives, e.g. (IV).

Published
1989

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