Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Vitaly А. Osyanin"'
Autor:
Kirill S. Korzhenko, Vitaly А. Osyanin, Dmitry V. Osipov, Darya А. Rashchepkina, Oleg P. Demidov, Yuri N. Klimochkin
Publikováno v:
Chemistry of Heterocyclic Compounds. 58:634-638
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbe642880fbf6bbaf989925563c588e9
https://doi.org/10.1007/s10593-022-03137-z
https://doi.org/10.1007/s10593-022-03137-z
Publikováno v:
Chemistry of Heterocyclic Compounds. 58:656-660
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdcf3bda73be4d6a533f1fdffab294db
https://doi.org/10.1007/s10593-022-03130-6
https://doi.org/10.1007/s10593-022-03130-6
Publikováno v:
Chemistry of Heterocyclic Compounds. 58:251-254
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3872a30da1e399180edaba72cfdb1fff
https://doi.org/10.1007/s10593-022-03079-6
https://doi.org/10.1007/s10593-022-03079-6
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:1170-1175
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f484d35156ea20c8b25570d5ee82caa6
https://doi.org/10.1007/s10593-021-03039-6
https://doi.org/10.1007/s10593-021-03039-6
Autor:
Oleg P. Demidov, Vitaly А. Osyanin, Alina А. Аrtemenko, Darya А. Rashchepkina, Dmitry V. Osipov
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:996-1001
When 2-(1-arylethylidene)malononitriles act upon 3-nitrobenzofurans in the presence of triethylamine, the furan ring opens and triethylammonium 2-aryl-1,1-dicyano-5-nitropenta-2,4-dien-1-ides are formed. The obtained salts containing the chromophoric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcb449f5e90a5a550b0dfda13b623e21
https://doi.org/10.1007/s10593-021-03013-2
https://doi.org/10.1007/s10593-021-03013-2
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:691-694
A method for the preparation of polycondensed chromeno[2,3-b]chromenes was developed based on the formal [3+3] cycloaddition reaction between 1H-benzo[f]chromene-2-carbaldehydes and 2-naphthols. In the case of resorcinol, the bisannulation product fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc2f4303441fae95766b8191ffcce834
https://doi.org/10.1007/s10593-021-02968-6
https://doi.org/10.1007/s10593-021-02968-6
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:615-623
The review summarizes the existing methods for the synthesis of 3-nitrobenzofurans and their polycondensed derivatives which are valuable substrates for dearomatization of the furan ring. The main attention is paid to the electrophilic nitration of 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d214d2e561b9f932c527140460c08b8c
https://doi.org/10.1007/s10593-021-02957-9
https://doi.org/10.1007/s10593-021-02957-9
Autor:
Anastasiya N. Dobrokvashina, Dmitry V. Osipov, Maxim R. Demidov, Vitaly А. Osyanin, Yuri N. Klimochkin
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:568-573
Three-component condensation of in situ generated pyridinium acyl methylides with aromatic aldehydes and 4-hydroxythiocoumarin led to a series of 2-acyl-2,3-dihydro-4H-thiochromeno[4,3-b]furan-4-ones. The reaction proceeds diastereoselectively with t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1ee3f44feac63caa953bce50328fedc
https://doi.org/10.1007/s10593-021-02944-0
https://doi.org/10.1007/s10593-021-02944-0
Autor:
Dmitry V. Osipov, Vitaly А. Osyanin
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:505-511
The minireview summarizes published data on the methods of synthesis of chromeno[2,3-b]chromenes, their benzo analogs, as well as partially hydrogenated and oxidized derivatives. Due to the paucity of methods for the synthesis of these heterocycles,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f647fde0c8bae666e7130e5f44ce6df5
https://doi.org/10.1007/s10593-021-02933-3
https://doi.org/10.1007/s10593-021-02933-3
Autor:
Kirill S. Korzhenko, Vitaly А. Osyanin, Dmitry V. Osipov, Yuri N. Klimochkin, Oleg P. Demidov
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:588-593
A method for the preparation of pyrimido[1,2-a]benzimidazoles containing a 2-hydroxybenzyl or (2-hydroxynaphthalen-1-yl)methyl group at position 3 was proposed based on the reaction of β-carbonyl-substituted 4H-chromenes and their benzo analogs with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac7e2d909e7f3bca8a5e2e65e9cb1acf
https://doi.org/10.1007/s10593-021-02947-x
https://doi.org/10.1007/s10593-021-02947-x