Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Mykola D. Obushak"'
Publikováno v:
Molbank, Vol 2022, Iss 3, p M1397 (2022)
Synthesis of the first representative of a 5-formyl-1H-1,2,3-triazole-4-carboxylic acids series – 1-(4-ethoxyphenyl)-5-formyl-1H-1,2,3-triazole-4-carboxylic acid was performed. The 1-azido-4-ethoxybenzene was chosen as a starting reagent in a two-s
Externí odkaz:
https://doaj.org/article/853d6c971acd411883f09a6dfcf51adb
Publikováno v:
Molbank, Vol 2022, Iss 3, p M1398 (2022)
The protocol for the reaction of 2-nitrophenyl azide with 2-(benzo[d]thiazol-2-yl)acetonitrile has been selected. It was found that an optimal condition under which the target 4-(benzo[d]thiazol-2-yl)-1-(2-nitrophenyl)-1H-1,2,3-triazol-5-amine could
Externí odkaz:
https://doaj.org/article/70e7e313a81d44b0b3cdee83e863febe
Publikováno v:
Molbank, Vol 2022, Iss 1, p M1340 (2022)
For the first time, 5-formyl-1-(pyridin-3-yl)-1H-1,2,3-triazole-4-carboxylate was synthesized via a two-step scheme. The molecular structure of the compound was determined by a single-crystal X-ray diffraction analysis. The Hirshfeld surface analysis
Externí odkaz:
https://doaj.org/article/235b85f70bcc4052905630044b57110a
Publikováno v:
Molecules, Vol 8, Iss 2, Pp 263-268 (2003)
3-Aryl-2-chloropropylisothiocyanates (1) are formed by interaction of arenediazonium chlorides with allyl isothiocyanate. Adducts 1 react with monoacylhydrazines to form 1-acyl-4-(3-aryl-2-chloropropyl)thiosemicarbazides (2a–d). Thiosemi
Externí odkaz:
https://doaj.org/article/05d8a70673ed495b9250327674db73bb
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 4, Pp o508-o508 (2013)
The title compound, C13H8INO, was prepared by a condensation reaction of 4-nitrobenzene with phenylacetonitrile in NaOH–ethanol solution. There are two independent molecules in the asymmetric unit, in which the dihedral angles between the benzene r
Externí odkaz:
https://doaj.org/article/94b81a94b42749ae8fc3f29146fe3da1
Autor:
Yuriy I. Horak, Roman Z. Lytvyn, Fedor I. Zubkov, Eugeniya V. Nikitina, Yuriy V. Homza, Tadeusz Lis, Vasyl Kinzhybalo, Mykola D. Obushak
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 2, Pp o273-o274 (2013)
The asymmetric unit of the title compound, C17H15NO4, contains two independent molecules with similar geometric parameters. In both molecules, the conformation of the cyclohexene ring is half-chair, while the pyrrolidinone ring adopts an envelope con
Externí odkaz:
https://doaj.org/article/284442085be74b7882423ce211595a5a
Autor:
Mykola D. Obushak, Yuri I. Horak, Vladimir P. Zaytsev, Ekaterina L. Motorygina, Fedor I. Zubkov, Victor N. Khrustalev
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 11, Pp o3031-o3032 (2011)
The title compound, C23H18N2O6, is the product of an intramolecular thermal cycloaddition within 1-malein-2-[(E)-2-(2-furyl)vinyl]-4-oxo-3,4-dihydroquinazoline. The molecule comprises a previously unknown fused pentacyclic system containing two five-
Externí odkaz:
https://doaj.org/article/18422314531f4e3da6e161cd8f4bd01e
Autor:
Flavien A. A. Toze, Julya D. Ershova, Mykola D. Obushak, Fedor I. Zubkov, Victor N. Khrustalev
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 6, Pp o1388-o1389 (2010)
The title compound, C17H18NO+·I−, is an adduct resulting from an intramolecular Diels–Alder reaction of methallyl chloride with 3,4-dihydro-1-furylisoquinoline. The cation comprises a fused pentacyclic system containing three five-membered rings
Externí odkaz:
https://doaj.org/article/31ffd774eb8d41f4a81df0c3f1d70e03
Publikováno v:
Synthesis. 55:977-988
A convenient method for the synthesis of 2-azido-3-arylpropanoic acids via the Meerwein halogenoarylation reaction of acrylic acid esters with diazonium salts, subsequent nucleophilic substitution of the halogen by an azide, and saponification is dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0224c15a5358598d7836db01efb73f3a
https://doi.org/10.1055/s-0042-1751382
https://doi.org/10.1055/s-0042-1751382
Autor:
Andreas Schmidt, Yurii V. Ostapiuk, Mary Y. Ostapiuk, Oksana V. Barabash, Mykola Kravets, Colin Herzberger, Jan C. Namyslo, Mykola D. Obushak
Publikováno v:
Synthesis. 54:3658-3666
Both one-pot and two-step procedures for the synthesis of substituted 2-aminothiazoles and 2-aminoselenazoles are described. Anilines are first converted into arenediazonium bromides, which are then reacted with methyl vinyl ketone or cyclopropyl vin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e16240103710ee40547543901ce8c56
https://doi.org/10.1055/s-0041-1738070
https://doi.org/10.1055/s-0041-1738070