Výsledky vyhledávání - "Natalia P. Belskaia"

A novel approach to fused 1,2,4-triazines by intramolecular cyclization of 1,2-diaza-1,3-butadienes bearing allyl(propargyl)sulfanyl and cyclic tert-amino groups

Autor: Mikhail I. Kodess, Alexandr V. Koksharov, Natalia P. Belskaia, Albert T. Lebedev, Vasiliy A. Bakulev, Wim Dehaen, Tatyana G. Deryabina

Publikováno v: Tetrahedron Letters. 48:9128-9131

3-Allyl- and 3-prop-1-ynylsulfanyl-2-arylazo-3-cycloalkylamino-acrylonitriles undergo cyclization under mild conditions to afford the novel heterocyclic systems 1,4,6,7,8,8a-hexahydropyrrolo[2,1- c ][1,2,4]-triazine-4-thione, 1,4,6,7,9,9a-hexahydro-[

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49f585f601b0c81cd3c122b98401ceb8
https://doi.org/10.1016/j.tetlet.2007.10.140

Zobrazit plný text záznamu

A one-step route to azomethine ylides via chloroiminium salts

Autor: Natalia P. Belskaia, Paul W. Groundwater, Rosaleen J. Anderson, Andrey Victorovich Zaytsev, Otto Meth-Cohn, Andrei S. Batsanov

Publikováno v: Tetrahedron Letters. 45:943-946

A new, one-step procedure for the generation of azomethine ylides, 4 and 20, via chloroiminium salts, 3 and 19, is reported. The generation of the azomethine ylides was confirmed by their trapping with dimethyl acetylenedicarboxylate (DMAD) which, up

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c50b2dddb16b05d0fda274f3230c8b5c
https://doi.org/10.1016/j.tetlet.2003.11.095

Zobrazit plný text záznamu

[3+2]- Versus [4+2]-cycloaddition reactions of 3-methylsulfanyl-2-arylazo-3-(pyrrolidin-1-yl)acrylonitriles with N-substituted maleimides involving pyrrolidine-derived azomethine ylides

Autor: Michail I. Kodess, Wim Dehaen, Tatyana G. Deryabina, Vasiliy A. Bakulev, Natalia P. Belskaia, Suzanne Toppet

Publikováno v: Tetrahedron Letters. 47:1853-1855

3-Methylsulfanyl-2-arylazo-3-(pyrrolidin-1-yl)acrylonitriles do not enter into [4+2]-cycloaddition reactions with maleimides to form the expected pyrrolo-pyridazines. Instead the formation of novel pyrrolo-pyridazines of type 4 takes place via a form

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b30f34c8a32636ab3599df51d8309568
https://doi.org/10.1016/j.tetlet.2005.12.130

Zobrazit plný text záznamu

A New Synthetic Method for the 2H-[1,2,3]Thiadiazolo[5,4-b]indoles

Autor: Anna V. Pepeleva, Alexandr V. Koksharov, Koen Robeyns, Luc Van Meervelt, Paul V. Groundwater, Maria L. Kondratieva, Wim Dehaen, Natalia P. Belskaia, Zhijin Fan, Vasiliy A. Bakulev

Publikováno v: ChemInform. 38

The systematic study of oxidative cyclization of 3-hydrazono-1,3-dihydroindole-2-thiones has been carried out and a series of new 2H-[1,2,3]thiadiazolo[5,4-b]indoles has been prepared. The elaborated reaction represents an efficient method for the sy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::957d27332b216bfbf174acc9c31c6624
https://doi.org/10.1002/chin.200731108

Zobrazit plný text záznamu

Reactions of 5-Mercaptoazoles and Pyridine-2-thiones with Acetylenic Esters. Selectivity of the Formation of Novel Fused Thiazin-4-ones and Thiazolidin-4-ones

Autor: Suzanne Toppet, Vasiliy A. Bakulev, Yury Yu. Morzherin, Vera S. Berseneva, Wim Dehaen, Andreiy Zaitsev, Natalia P. Belskaia, Ingrid Luyten

Publikováno v: ChemInform. 34

A systematic study of the reactions of dimethyl acetylenedicarboxylate (DMAD) and methyl propynoate with 5-mercaptoazoles and pyridine-2-thiones has been carried out and as a result, a number of novel imidazo[1,5-b]thiazin-4-ones 6a,b, pyrazolo[1,5-b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04e2a550c23dc92c83dd498bea859235
https://doi.org/10.1002/chin.200320180

Zobrazit plný text záznamu

ChemInform Abstract: Synthesis of Novel 2,5-Dihydro- and 2,3,4,5-Tetrahydro-1,2,4-triazin-5-ones from 2-Arylhydrazonoacetamides and Orthoesters

Autor: Vasiliy A. Bakulev, Ekaterina E. Zvereva, Natalia P. Belskaia, Wim Dehaen

Publikováno v: ChemInform. 32

Reactions of 2-arylhydrazonoacetamides 1 with orthoesters were shown to give, depending on the structure of the hydrazone and the reaction conditions, either 2,3,4,5-tetrahydro-1,2,4-triazin-5-ones 2 or 2,5-dihydro-1,2,4-triazin-5-ones 3, which are v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::095249d3fddcaef110e332b9dadad3c9
https://doi.org/10.1002/chin.200120122

Zobrazit plný text záznamu

Akademický článek

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Vyhledávací nástroje:

Upřesnit hledání