Search Results - "Shtaitz, Yaroslav K"

Comparison of Photophysical Properties of Lanthanide(III) Complexes of DTTA- or DO3A-Appended Aryl-2,2'-Bipyridines by Krinochkin, Alexey P, Valieva, Maria I, Starnovskaya, Ekaterina S, Shtaitz, Yaroslav K, Kopchuk, Dmitry S, Taniya, Olga S, Kim, Grigory A, Shevyrin, Vadim A, Zyryanov, Grigory V, Chupakhin, Oleg N

“…New Tb(III) and Eu(III) complexes based on aryl-2,2'-bipyridine ligands with a cyclic DO3A chelating unit appended in the alpha position of the bipyridine core…”
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New TEMPO-Appended 2,2'-Bipyridine-Based Eu(III), Tb(III), Gd(III) and Sm(III) Complexes: Synthesis, Photophysical Studies and Testing Photoluminescence-Based Bioimaging Abilities by Slovesnova, Nataliya V, Minin, Artem S, Belousova, Anna V, Ustyugov, Aleksey A, Chaprov, Kirill D, Krinochkin, Alexey P, Valieva, Maria I, Shtaitz, Yaroslav K, Starnovskaya, Ekaterina S, Nikonov, Igor L, Tsmokalyuk, Anton N, Kim, Grigory A, Santra, Sougata, Kopchuk, Dmitry S, Nosova, Emiliya V, Zyryanov, Grigory V

“…Linked to Alzheimer's disease (AD), amyloids and -protein are known to contain a large number of cysteine (Cys) residues. In addition, certain levels of some…”
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Coumarin-pyridine push-pull fluorophores: Synthesis and photophysical studies by Fatykhov, Ramil F., Sharapov, Ainur D., Starnovskaya, Ekaterina S., Shtaitz, Yaroslav K., Savchuk, Maria I., Kopchuk, Dmitry S., Nikonov, Igor L., Zyryanov, Grigory V., Khalymbadzha, Igor A., Chupakhin, Oleg N.

“…[Display omitted] •Coumarin-pyridine fluorophores were obtained via C-H functionalization and Boger reaction.•4-Alkylcoumarin fluorophores have emission and…”
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1H‐Pyrazole‐Appended Pyridines and Their 1,2,4‐Triazine Precursors: A Rational Synthesis and in silico and in vitro Evaluation of Anti‐Cancer Activity by Krinochkin, Alexey P., Shtaitz, Yaroslav K., Rammohan, Aluru, Butorin, Ilya I., Savchuk, Maria I., Khalymbadzha, Igor A., Kopchuk, Dmitry S., Slepukhin, Pavel A., Melekhin, Vsevolod V., Shcheglova, Anna V., Zyryanov, Grigory V., Chupakhin, Oleg N.

“…An operationally facile and high yielding one‐pot protocol has been developed for the preparation of pyridines appended with pyrazole via NH linker. This…”
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A facile synthesis of triazine integrated antipyrine derivatives through ecofriendly approach by Rammohan, Aluru, Reddy, Guda Mallikarjuna, Krinochkin, Alexey P., Kopchuk, Dmitry S., Savchuk, Maria I., Shtaitz, Yaroslav K., Zyryanov, Grigory V., Rusinov, Vladimir L., Chupakhin, Oleg N.

“…The present study describes a facile and solvent free synthesis of 1,2,4-triazine antipyrine derivatives (2a-f) in prominent yields (70-85%) over nucleophilic…”
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Studying the effectiveness of various chromophores of the 5-aryl-2,2ʹ-bipyridine series for the sensitization of lanthanide(III) cations by Majee, Adinath, Krinochkin, Alexey P., Valieva, Maria I., Starnovskaya, Ekaterina S., Shtaitz, Yaroslav K., Kopchuk, Dmitry S., Santra, Sougata, Liu, Yuanli, Zyryanov, Grigory V., Chupakhin, Oleg N.

“…A systematic study of the effectiveness of various chromophores of the 5-aryl-2,2ʹ-bipyridine series was carried out in terms of sensitization of…”
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Asymmetrically Functionalized 1,3-Di(2-pyridyl)benzenes: Synthesis and Photophysical Studies by Starnovskaya, Ekaterina S., Kopchuk, Dmitry S., Shtaitz, Yaroslav K., Savchuk, Maria I., Nikonov, Igor L., Egorov, Ilya N., Zyryanov, Grigory V., Rusinov, Vladimir L., Chupakhin, Oleg N.

“…A convenient synthetic approach to asymmetrically functionalized 1,3-di(2-pyridyl)benzenes starting from 3-(3-bromophenyl)-1,2,4-triazines using sequential aza…”
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Studies on Interactions of 5,6-Diaryl-3-(Quinolin-2-YL)-1,2,4-Triazines with Arynes: A TM-Free One-Step Approach to 2-(3,4-Diarylisoquinolin-1-YL)Quinolines by Gundala, Sravya, Khasanov, Albert F., Kopchuk, Dmitry S., Starnovskaya, Ekaterina S., Shtaitz, Yaroslav K., Krinochkin, Alexey P., Gorbunov, Eugeny B., Zyryanov, Grigory V., Padmavathi, Venkatapuram, Chupakhin, Oleg N.

“…Interactions of 5,6-diaryl-3-(quinolin-2-yl)-1,2,4-triazines with arynes are studied. 2-(3,4-Diarylisoqunolin-1-yl)quinolines are obtained in up to 65% yield…”
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5-Aryl-2,2′-bipyridines bearing fluorinated anilines residues at C6 position: synthesis and photophysical properties by Kopchuk, Dmitry S., Starnovskaya, Ekaterina S., Shtaitz, Yaroslav K., Khasanov, Albert F., Kim, Grigory A., Nosova, Emiliya V., Krinochkin, Alexey P., Zyryanov, Grigory V., Rusinov, Vladimir L., Chupakhin, Oleg N.

“…A convenient synthetic approach to 5-aryl-2,2′-bipyridines bearing a (poly)fluorine-containing aniline residue at position C6 based on sequential ipso…”
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Synthesis of Novel 3-(Pyridin-4-yl)-1,2,4-Triazines, their Analogs and Study of the Activity Against Vaccinia Virus by Shabunina, Olga V., Shtaitz, Yaroslav K., Kopchuk, Dmitry S., Krinochkin, Alexey P., Santra, Sougata, Zyryanov, Grigory V., Wang, Zhuo, Rusinov, Vladimir L., Chupakhin, Oleg N.

“…Using atom-economical approaches, new representatives of 3-(pyridin-4-yl)-1,2,4-triazines and their 4-nitrophenyl analogs were obtained, and their activity in…”
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New Push-Pull Fluorophores on the Basis of 6-Alkoxy-2,2'-Bipyridines: Rational Synthetic Approach and Photophysical Properties by Savchuk, Maria I., Khasanov, Albert F., Kopchuk, Dmitry S., Krinochkin, Alexey P., Nikonov, Igor L., Starnovskaya, Ekaterina S., Shtaitz, Yaroslav K., Kovalev, Igor S., Zyryanov, Grigory V., Chupakhin, Oleg N.

“…We propose an effective synthetic approach to 2(6)-alkoxy(bi)pyridines as new push-pull fluorophores via their 1,2,4-triazine analogs. The photophysical…”
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Efficient one-step synthesis of 3-aryl-2-pyridones from 6-aryl-1,2,4-triazin-5-ones by Savchuk, Maria I., Shtaitz, Yaroslav K., Kopchuk, Dmitry S., Zyryanov, Grigory V., Eltsov, Oleg S., Pospelova, Tatiana А., Rusinov, Vladimir L., Chupakhin, Oleg N.

“…An efficient method for the synthesis of substituted 2-pyridones based on the aza-Diels–Alder reaction of 1,2,4-triazin-5-ones and dienophiles,…”
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Improved method for the obtaining DTTA-appended 2,2’-bipyridine ligands for lanthanide cations by Dmitry S. Kopchuk, Alexey P. Krinochkin, Мaria I. Valieva, Еkaterina S. Starnovskaya, Yaroslav K. Shtaitz, Svetlana S. Rybakova, Evgeny D. Ladin, Ekaterina A. Kudryashova, Elvira R. Sharafieva, Оleg N. Chupakhin

“…The composition of the reaction mixture after DTTA tert-butyl ester alkylation with 6'-halomethyl-5-phenyl-2,2'-bipyridines was studied. In addition to the…”
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1 H ‐Pyrazole‐Appended Pyridines and Their 1,2,4‐Triazine Precursors: A Rational Synthesis and in silico and in vitro Evaluation of Anti‐Cancer Activity by Krinochkin, Alexey P., Shtaitz, Yaroslav K., Rammohan, Aluru, Butorin, Ilya I., Savchuk, Maria I., Khalymbadzha, Igor A., Kopchuk, Dmitry S., Slepukhin, Pavel A., Melekhin, Vsevolod V., Shcheglova, Anna V., Zyryanov, Grigory V., Chupakhin, Oleg N.

“…Abstract An operationally facile and high yielding one‐pot protocol has been developed for the preparation of pyridines appended with pyrazole via NH linker…”
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2-Aminooxazoles as novel dienophiles in the inverse demand Diels–Alder reaction with 1,2,4-triazines by Krinochkin, Alexey P., Mallikarjuna Reddy, Guda, Kopchuk, Dmitry S., Slepukhin, Pavel A., Shtaitz, Yaroslav K., Khalymbadzha, Igor A., Kovalev, Igor S., Kim, Grigory A., Ganebnykh, Ilya N., Zyryanov, Grigory V., Chupakhin, Oleg N., Charushin, Valery N.

“…[Display omitted] High temperature coupling of 6-aryl-5-cyano-3-(pyridin-2-yl)-1,2,4-triazines with 2-amino-4-aryloxazoles proceeds as the inverse demand…”
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New TEMPO–Appended 2,2′-Bipyridine-Based Eu Complexes: Synthesis, Photophysical Studies and Testing Photoluminescence-Based Bioimaging Abilities by Slovesnova, Nataliya V, Minin, Artem S, Belousova, Anna V, Ustyugov, Aleksey A, Chaprov, Kirill D, Krinochkin, Alexey P, Valieva, Maria I, Shtaitz, Yaroslav K, Starnovskaya, Ekaterina S, Nikonov, Igor L, Tsmokalyuk, Anton N, Kim, Grigory A, Santra, Sougata, Kopchuk, Dmitry S, Nosova, Emiliya V, Zyryanov, Grigory V

“…Linked to Alzheimer’s disease (AD), amyloids and tau-protein are known to contain a large number of cysteine (Cys) residues. In addition, certain levels of…”
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Synthesis of Novel 6‐(2‐Thienyl)‐2,2′‐Bipyridine Ligands Using “1,2,4‐Triazine” Methodology: an Unexpected Demethylation During the Aza‐Diels‐Alder Reaction with 2,5‐Norbornadiene by Shtaitz, Yaroslav K., Ladin, Evgeny D., Valieva, Maria I., Kopchuk, Dmitry S., Nikonov, Igor L., Zyryanov, Grigory V., Khalymbadzha, Igor A., Fatykhov, Ramil F., Sharutin, Vladimir V.

“…New 2‐(di)methoxythienyl substituted ligands of the 2,2′‐bipyridine series containing various aromatic substituents at the C3 position were obtained in yields…”
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Highly Regioselective Synthesis of 3,6‐Diaryl‐2‐(het)arylpyridines by aza‐Diels‐Alder Reactions between 6‐H‐1,2,4‐Triazine Dienes and 2‐Amino‐4‐aryloxazole‐Based Dienophiles by Shtaitz, Yaroslav K., Rammohan, Aluru, Krinochkin, Alexey P., Ladin, Evgeny D., Butorin, Ilya I., Mochulskaya, Nataliya N., Khalymbadzha, Igor A., Slepukhin, Pavel A., Shevyrin, Vadim A., Kopchuk, Dmitry S., Zyryanov, Grigory V., Chupakhin, Oleg N.

“…A solvent‐free reaction between C6‐unsubstituted 5‐aryl‐1,2,4‐triazines and 2‐amino‐4‐aryloxazoles at high temperature was studied. The reaction proceeds via…”
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6‐Arylamino‐2,2′‐bipyridine “Push‐Pull” Fluorophores: Solvent‐Free Synthesis and Photophysical Studies by Kopchuk, Dmitry S., Krinochkin, Alexey P., Starnovskaya, Ekaterina S., Shtaitz, Yaroslav K., Khasanov, Albert F., Taniya, Olga S., Santra, Sougata, Zyryanov, Grigory V., Majee, Adinath, Rusinov, Vladimir L., Chupakhin, Oleg N.

“…This work describes a solvent‐free approach towards “push‐pull” fluorophores based on 5‐aryl‐2,2′‐bipyridines bearing the residues of various anilines at the…”
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A PASE Approach towards (Adamantyl‐1)‐, Alkyl‐ and (Het)Aryl‐Substituted [1, 2,4]triazolo[1, 5‐d][1, 2,4]triazines: A Sequence of Two Solvent‐Free Reactions Bearing Lower E‐Factors by Krinochkin, Alexey P., Kopchuk, Dmitry S., Giri, Kousik, Shtaitz, Yaroslav K., Starnovskaya, Ekaterina S., Khalymbadzha, Igor A., Drokin, Roman A., Ulomsky, Eugeny N., Santra, Sougata, Zyryanov, Grigory V., Rusinov, Vladimir L., Chupakhin, Oleg N.

“…A Pot, Atom, Step Economic (PASE) approach is reported towards [1, 2,4]triazolo[1, 5‐d][1, 2,4]triazines, substituted with the azole ring with pharmacophore…”
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