Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Vyacheslav Y, Sosnovskikh"'
Publikováno v:
Organics, Vol 4, Iss 4, Pp 539-561 (2023)
4-Hydroxy-2-pyrones are of interest as potential biorenewable molecules for a sustainable transition from biomass feedstock to valuable chemical products. This review focuses on the methodologies for the synthesis of 4-hydroxy-2-pyrones published ove
Externí odkaz:
https://doaj.org/article/441dee9df6204f44a2b839877dd214f7
Publikováno v:
Molbank, Vol 2023, Iss 2, p M1668 (2023)
A two-stage synthesis of 5-aroyl-2-aryl-3-hydroxypyridin-4(1H)-ones (56–66% overall yields) was carried out by refluxing 5-aroyl-3-(benzyloxy)-2-(het)aryl-4H-pyran-4-ones with ammonium acetate in AcOH and subsequent debenzylation. The prepared N-un
Externí odkaz:
https://doaj.org/article/94625a2314fe40deb058e4b7ab54f526
Autor:
Vyacheslav Y. Sosnovskikh
Publikováno v:
SynOpen, Vol 05, Iss 03, Pp 255-277 (2021)
The reported methods and data for the synthesis and reactivity of electron-deficient 3-vinylchromones containing electron-withdrawing groups at the exo-cyclic double bond are summarized and systematized for the first time. The main methods for obta
Externí odkaz:
https://doaj.org/article/4587ceb0ffa346c5a11548fc5d765a7f
Autor:
Igor B. Kutyashev, Maxim S. Sannikov, Ivan A. Kochnev, Alexey Y. Barkov, Nikolay S. Zimnitskiy, Vladislav Y. Korotaev, Vyacheslav Y. Sosnovskikh
Publikováno v:
SynOpen, Vol 05, Iss 01, Pp 1-16 (2021)
Regio- and stereoselective methods for the synthesis of 6′-trifluoro(trichloro)methyl substituted spiro[acenaphthylene-1,11′-chromeno[3,4-a](thia)pyrrolizidin]-2-ones and spiro[acenaphthylene-1,12′-chromeno[3,4-a]indolizidin]-2-ones have been d
Externí odkaz:
https://doaj.org/article/ad3b0042235c4651804fd208edd94bbf
Publikováno v:
ACS Omega, Vol 5, Iss 51, Pp 33406-33420 (2020)
Externí odkaz:
https://doaj.org/article/32fbf726534947bd8a47920fb29d0c59
Publikováno v:
Molecules, Vol 28, Iss 3, p 1285 (2023)
This work describes the synthesis of 3-hydroxy-3,4-dihydropyrido[2,1-c][1,4]oxazine-1,8-diones, their tautomerism, and reactivity towards binucleophiles. These molecules are novel and convenient building-blocks for the direct construction of biologic
Externí odkaz:
https://doaj.org/article/1f634a64220049e0a856f671eb04a973
Autor:
Ivan A. Kochnev, Alexey Y. Barkov, Nikita S. Simonov, Maria V. Ulitko, Nikolay S. Zimnitskiy, Vladislav Y. Korotaev, Vyacheslav Y. Sosnovskikh
Publikováno v:
Molecules, Vol 27, Iss 24, p 8983 (2022)
The AgOAc-catalysed reaction of 3-nitro-2-phenyl-2H-chromenes with stabilized azomethine ylides generated from the imines based on methyl glycinate and arylaldehydes leads to a mixture of endo and endo’ isomers of the corresponding chromeno[3,4-c]p
Externí odkaz:
https://doaj.org/article/00059750477b44df99602ef9a6b0fa9d
Autor:
Dmitrii L. Obydennov, Diana I. Nigamatova, Alexander S. Shirinkin, Oleg E. Melnikov, Vladislav V. Fedin, Sergey A. Usachev, Alena E. Simbirtseva, Mikhail Y. Kornev, Vyacheslav Y. Sosnovskikh
Publikováno v:
Molecules, Vol 27, Iss 24, p 8996 (2022)
A straightforward approach for the construction of the new class of conjugated pyrans based on enamination of 2-methyl-4-pyrones with DMF-DMA was developed. 2-(2-(Dimethylamino)vinyl)-4-pyrones are highly reactive substrates that undergo 1,6-conjugat
Externí odkaz:
https://doaj.org/article/556b06e0917b48f49fecaf1f1fc171ea
Autor:
Ivan A. Kochnev, Alexey Y. Barkov, Nikolay S. Zimnitskiy, Vladislav Y. Korotaev, Vyacheslav Y. Sosnovskikh
Publikováno v:
Molecules, Vol 27, Iss 23, p 8456 (2022)
A regioselective one-pot method for the synthesis of 1-ethyl 2,4-dihydrochromene[3,4-c]pyrroles in 63–94% yields from available 2-phenyl-, 2-trifluoro(trichloro)methyl- or 2-phenyl-2-(trifluoromethyl)-3-nitro-2H-chromenes and ethyl isocyanoacetate
Externí odkaz:
https://doaj.org/article/b6a9e68dc0444b78959065706501d72d
Publikováno v:
Molecules, Vol 27, Iss 20, p 7098 (2022)
Dehydroacetic acid and triacetic acid lactone are known to be versatile substrates for the synthesis of a variety of azaheterocycles. However, their fluorinated analogs were poorly described in the literature. In the present work, we have investigate
Externí odkaz:
https://doaj.org/article/bb6fa64316484323b5c413aaefbfb8df