Výsledky vyhledávání - "Dmitriy G. Krotko"

Approach to the Library of Fused Pyridine-4-carboxylic Acids by Combes-Type Reaction of Acyl Pyruvates and Electron-Rich Amino Heterocycles

Autor: Oleksandr O. Grygorenko, Dmitriy M. Volochnyuk, Alexei Pushechnikov, Andrey S. Plaskon, Andrey A. Tolmachev, Pavel K. Mykhailiuk, Dmitriy G. Krotko, Yuri V. Dmytriv, Sergey V. Ryabukhin

Publikováno v: Journal of Combinatorial Chemistry. 12:510-517

A library of fused pyridine-4-carboxylic acids (including pyrazolo[3,4-b]pyridines, isoxazolo[5,4-b]pyridines, furo[2,3-b]pyridines, thieno[2,3-b]pyridines, and pyrido[2,3-d]pyrimidines) was generated by Combes-type reaction of acyl pyruvates and ele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff2b4c50638066739cb6cb76b2db3de7
https://doi.org/10.1021/cc100040q

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Synthesis and spectral properties of cyanine dyes based on indeno[2,1-b]chromene

Autor: A. I. Tolmachev, K. V. Fedotov, Dmitriy G. Krotko

Publikováno v: Chemistry of Heterocyclic Compounds. 41:79-85

Starting from the products of formylation and vinylformylation of indeno[2,1-b]chromene a series of new symmetrical and unsymmetrical polymethine dyes have been synthesized with a residue of indeno[2,1-b]chromene as the terminal group. It was shown t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96db76d9ea72948689201a3f967e851e
https://doi.org/10.1007/s10593-005-0111-x

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Electron-Rich Amino Heterocyclesfor Regiospecific Synthesis of Trifluoromethyl-ContainingFused Pyridines

Autor: Dmitriy M. Volochnyuk, Alexei Pushechnikov, Andrei A. Tolmachev, Dmitriy G. Krotko, Dmitriy A. Sibgatulin, Svetlana A. Kovalyova

Publikováno v: Synthesis. :1531-1540

The reaction of 4,4,4-trifluoro-3-oxobutanoates with the corresponding electron-rich amino heterocycles was investigated. A simple and flexible general procedure for the regiospecific annulation of the trifluoromethylpyridine ring to electron-rich am

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f57cad5fa3a82aab8a4f9bea47d58751
https://doi.org/10.1055/s-2003-40520

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One-Pot Synthesis of (5-Aminopyrazol-4-yl)-phosphonicAcid Derivatives from 1-Aryl-5-arylcarboxamidopyrazoles throughPyrazolo[4,3-c][1,5,2]-oxazaphosphinines

Autor: Alexei Pushechnikov, Alexander N. Chernega, Dmitriy M. Volochnyuk, Anatoliy Marchenko, Dmitriy G. Krotko, Georgiy N. Koydan, Alexander M. Pinchuk, Andrei A. Tolmachev

Publikováno v: Synthesis. 2003:0906-0914

I-Aryl-5-arylcarboxamidopyrazoles react with phosphorus(III) halides giving the new heterocyclic system: pyrazolo[4,3-c][1,5,2]oxazaphosphinine. Treatment of pyrazolo[4,3-c][1,5,2]oxazaphosphinines with nucleophilic or electrophilic reagents leads to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a35c970264f3d4dd7bea7f2b787070e
https://doi.org/10.1055/s-2003-38685

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Phosphorylation of Arylureas and Arylcarbamates: A New Prospect

Autor: Alexei Pushechnikov, Dmitriy G. Krotko, Dmitriy M. Volochnyuk, Andrei A. Tolmachev, Alexandr M. Pinchuk

Publikováno v: ChemInform. 37

N,N'-Diarylureas having electron-donating substituents at appropriate positions react with phosphorus(III) bromide forming the new heterocyclic system 2,4,1-benzodiazaphosphinan-3-one. N-(5-Pyrazolyl), N'-arylureas, and N,O-diarylcarbamates also unde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8af1b3de706cfad4e0b1eaef70b04cdd
https://doi.org/10.1002/chin.200613185

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