Zobrazeno 1 - 10
of 25
pro vyhledávání: '"I. Goba"'
Publikováno v:
Journal of Solid State Electrochemistry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dadf4d3fb2bca06ffec3239920fc664
https://doi.org/10.1007/s10008-023-05425-w
https://doi.org/10.1007/s10008-023-05425-w
Publikováno v:
Journal of Molecular Structure. 1074:549-558
Structural and conformational properties of 1,4-dihydroisonicotinic acid derivatives, characterized by ester, ketone or cyano functions at positions 3 and 5 in solid and liquid states have been investigated by X-ray analysis and nuclear magnetic reso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dabdc2c260a0b002c587ac27a4e71ee8
https://doi.org/10.1016/j.molstruc.2014.06.044
https://doi.org/10.1016/j.molstruc.2014.06.044
Publikováno v:
Chemistry of Heterocyclic Compounds. 49:1640-1652
The mechanism of electrochemical oxidation of 1,2,3,4-tetrahydropyridines in acetonitrile has been studied. A single reversible one-electron oxidation is registered in the accessible voltage range. The reversibility of the process is sensitive to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcfce19996d9c4f2493410e28d836438
https://doi.org/10.1007/s10593-014-1415-5
https://doi.org/10.1007/s10593-014-1415-5
Publikováno v:
Chemistry of Heterocyclic Compounds. 49:726-735
The synthesis of new unsymmetrically substituted 1,4-dihydroisonicotinic acid bearing cyano and acetyl groups in positions 3 and 5 of the heterocycle has been developed. The methyl, ethoxycarbonylmethyl, and propionyloxymethyl esters of the acid have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf987e9c34d7da54fe3097d083013461
https://doi.org/10.1007/s10593-013-1304-3
https://doi.org/10.1007/s10593-013-1304-3
Autor:
I. Goba, Edvards Liepinsh
Publikováno v:
Magnetic Resonance in Chemistry. 51:391-396
In this article, we describe the characteristic 15N and 1HN NMR chemical shifts and 1J(15N–1H) coupling constants of various symmetrically and unsymmetrically substituted 1,4-dihydropyridine derivatives. The NMR chemical shifts and coupling constan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f343dcd5b1ba17c9daa0805ac3806858
https://doi.org/10.1002/mrc.3959
https://doi.org/10.1002/mrc.3959
Autor:
Edgars Liepinsh, J. Stradins, S. Stupnikova, Baiba Turovska, Sergey Belyakov, S. Grinberga, I. Goba, I. Turovskis
Publikováno v:
Chemistry of Heterocyclic Compounds. 44:1483-1490
The electrochemical oxidation of 4-monoalkyl-substituted 1,4-dihydropyridines has been studied in an aprotic medium and in the presence of pyridine. In an aprotic medium the products of oxidation are both 4-alkyl-substituted and 4-unsubstituted pyrid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f64da760aae8d432916d17a158e30ba
https://doi.org/10.1007/s10593-009-0211-0
https://doi.org/10.1007/s10593-009-0211-0
Publikováno v:
Chemistry of Heterocyclic Compounds. 43:175-186
It has been shown that chemical oxidation of the methyl ester of 3,4,5-trimethoxycarbonyl-1,2,6-trimethyl-1,4-dihydropyridine to the pyridinium salt, requiring forcing experimental conditions, may be replaced by electrochemical oxidation. On electroc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c013a038df5a10c9041cfe190e7614e6
https://doi.org/10.1007/s10593-007-0029-6
https://doi.org/10.1007/s10593-007-0029-6
Publikováno v:
ChemInform. 45
An efficient method for the synthesis of the title compounds bearing cyano and acetyl groups in positions C-3 and C-5 using a three-component Hantzsch reaction and their transformation into esters are described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cda78f474361eb9375bd31c1dff53e5
https://doi.org/10.1002/chin.201403172
https://doi.org/10.1002/chin.201403172
Publikováno v:
66th EAGE Conference and Exhibition - Workshops.
The new millennium holds a set of challenges for geoscientists around the globe. Saudi Aramco Exploration Organization has been known for its wealth of experts in all fields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a3045acd8d43149057bcd567c91c8ae
https://doi.org/10.3997/2214-4609.201405676
https://doi.org/10.3997/2214-4609.201405676
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