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Dive into the research topics where Nikita A. Kazin is active.

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Featured researches published by Nikita A. Kazin.


RSC Advances | 2016

A new synthetic approach to fused nine-ring systems of the indolo[3,2-b]carbazole family through double Pd-catalyzed intramolecular C–H arylation

Roman A. Irgashev; Nikita A. Kazin; Grigory A. Kim; Gennady L. Rusinov; Valery N. Charushin

A series of new polycyclic compounds bearing the 5,11-dihydroindolo[3,2-b]carbazole ring system, as the common motif of their nine-ring scaffolds, has been successfully prepared with the usage of an efficient two-step strategy, based on the double Friedel–Crafts acylation of 5,11-dihexyl-6,12-di(hetero)aryl-substituted 5,11-dihydroindolo[3,2-b]carbazoles with 2-iodobenzoyl chloride in the presence of SnCl4, followed by regioselective palladium-catalyzed cyclization of the obtained 2,8-bis(2-iodobenzoyl) derivatives into the desired fused 9H-fluoren-9-ones. Some modifications of these nine-ring structures have been performed to afford compounds of the same family bearing the 9H-fluorene fragments. Basic photophysical and electrochemical properties as well as thermal stability of the new fused indolo[3,2-b]carbazole derivatives have been determined.


Beilstein Journal of Organic Chemistry | 2017

Nitration of 5,11-dihydroindolo[3,2-b]carbazoles and synthetic applications of their nitro-substituted derivatives

Roman A. Irgashev; Nikita A. Kazin; Gennady L. Rusinov; Valery N. Charushin

A new general approach to double nitration of 6,12-di(hetero)aryl-substituted and 6,12-unsubstituted 5,11-dialkyl-5,11-dihydroindolo[3,2-b]carbazoles by acetyl nitrate has been developed to obtain their 2,8-dinitro and 6,12-dinitro derivatives, respectively. A formation of mono-nitro derivatives (at C-2 or C-6) from the same indolo[3,2-b]carbazoles has also been observed in several cases. Reduction of 2-nitro and 2,8-dinitro derivatives with zinc powder and hydrochloric acid has afforded 2-amino- and 2,8-diamino-substituted indolo[3,2-b]carbazoles, while reduction of 6,12-dinitro derivatives under similar reaction conditions has been accompanied by denitrohydrogenation of the latter compounds into 6,12-unsubstituted indolo[3,2-b]carbazoles. Formylation of 6,12-dinitro derivatives has proved to occur only at C-2, while bromination of these compounds has taken place at both C-2 and C-8 of indolo[3,2-b]carbazole scaffold. Moreover, 6,12-dinitro-substituted indolo[3,2-b]carbazoles have been modified by the reactions with S- and N-nucleophiles. Notably, the treatment of 6,12-dinitro compounds with potassium thiolates has resulted in the displacement of both nitro groups, unlike potassium salts of indole or carbazole, which have caused substitution of only one nitro group.


Inorganic Materials: Applied Research | 2017

Electroluminescence and electron–hole mobility of 6,12-di(thien-2-il)indolo[3,2-b]carbazoles

A. V. Dmitriyev; A. R. Yusupov; Roman A. Irgashev; Nikita A. Kazin; Eugene I. Mal'tsev; D. A. Lypenko; Gennady L. Rusinov; A. V. Vannikov; Valery N. Charushin

Novel compounds—substituted indolo[3,2-b]carbazoles (SIC)—which demonstrate semiconducting properties are synthesized. Electroluminescence (EL) is studied in multilayer diode structures based on SIC. The values of hole (6.38 × 10–5 cm2/(V s)) and electron mobilities (1.31 × 10–5 cm2/(V s)) of these electroactive materials are measured. It is estimated that heteroaromatic nuclei are the electron transport centers of SIC molecules.


Mendeleev Communications | 2016

Electron-hole mobility in 6,12-di(2-thienyl)indolo[3,2-b]carbazoles

Artem V. Dmitriev; Azat R. Yusupov; Roman A. Irgashev; Nikita A. Kazin; Eugene I. Mal’tsev; D. A. Lypenko; Gennady L. Rusinov; A. V. Vannikov; Valery N. Charushin


Synthesis | 2015

Regioselective C2- and C8-Acylation of 5,11-Dihydroindolo[3,2-b]carbazoles and the Synthesis of Their 2,8-Bis(quinoxalinyl) Derivatives

Roman A. Irgashev; Nikita A. Kazin; Grigory A. Kim; Gennady L. Rusinov; Valery N. Charushin


Tetrahedron Letters | 2017

A convenient synthesis of new 5,11-dihydroindolo[3,2-b]carbazoles bearing thiophene, 2,2′-bithiophene or 2,2′:5′,2″-terthiophene units at C-2 and C-8 positions

Roman A. Irgashev; Nikita A. Kazin; Gennady L. Rusinov; Valery N. Charushin


Tetrahedron Letters | 2015

Direct arylalkenylation of furazano[3,4-b]pyrazines via a new C–H functionalization protocol

Nikita A. Kazin; Yuriy A. Kvashnin; Roman A. Irgashev; Wim Dehaen; Gennady L. Rusinov; Valery N. Charushin


Polyhedron | 2018

Synthesis, crystal structure and fluorescent properties of indolo[3,2-b]carbazole-based metal–organic coordination polymers

Il Son Khan; D. G. Samsonenko; Roman A. Irgashev; Nikita A. Kazin; Gennady L. Rusinov; Valery N. Charushin; M. S. Zavakhina; Vladimir P. Fedin


Dyes and Pigments | 2017

Synthesis and properties of new π-conjugated imidazole/carbazole structures

Roman A. Irgashev; Nikita A. Kazin; N. I. Makarova; I. V. Dorogan; Vladimir V. Malov; A. R. Tameev; Gennady L. Rusinov; A. V. Metelitsa; Vladimir I. Minkin; Valery N. Charushin


Arkivoc | 2018

An improved protocol for the preparation of 5,11-dialkyl-6,12-di(hetero)aryl-5,11-dihydroindolo[3,2-b]carbazoles and synthesis of their new 2,8-dicyano- / 2,8-bis(benzo[d]thiazol-2-yl)-substituted derivatives

Roman A. Irgashev; Nikita A. Kazin; Gennady L. Rusinov; Valery N. Charushin

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Gennady L. Rusinov

Russian Academy of Sciences

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Roman A. Irgashev

Russian Academy of Sciences

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A. V. Vannikov

Russian Academy of Sciences

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D. A. Lypenko

Russian Academy of Sciences

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Grigory A. Kim

Russian Academy of Sciences

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Yuriy A. Kvashnin

Russian Academy of Sciences

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A. R. Tameev

Russian Academy of Sciences

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A. R. Yusupov

Russian Academy of Sciences

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A. V. Dmitriyev

Russian Academy of Sciences

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