Zobrazeno 1 - 10
of 84
pro vyhledávání: '"N P Bednyagina"'
Autor:
L. V. Shmelev, N. P. Bednyagina, L. I. Rusinova, G. N. Lipunova, Z. A. Starikova, I. N. Polyakova
Publikováno v:
Journal of Structural Chemistry. 31:103-110
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::532bc399d04532526526eeb0908aa862
https://doi.org/10.1007/bf00752021
https://doi.org/10.1007/bf00752021
Publikováno v:
Chemistry of Heterocyclic Compounds. 19:966-969
The reaction of aldehyde benzazolylhydrazones with amy1 nitrite in acetic acid leads to an oxidative transformation to give N,N′-diacyl derivatives of 2-hydrazinobenzazoles rather than to nitrosation of the hydrazones, whereas in the case of benzal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1942a1a6632e6381c5936a9d06e21278
https://doi.org/10.1007/bf00506882
https://doi.org/10.1007/bf00506882
Publikováno v:
Russian Chemical Reviews. 44:493-509
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0dac4a806a7feb70dfd2fc00451d534
https://doi.org/10.1070/rc1975v044n06abeh002356
https://doi.org/10.1070/rc1975v044n06abeh002356
Publikováno v:
Chemistry of Heterocyclic Compounds. 10:428-433
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d77709d423a97d4d9c619d07f7b8fbb8
https://doi.org/10.1007/bf00945633
https://doi.org/10.1007/bf00945633
Publikováno v:
Chemistry of Heterocyclic Compounds. 16:857-860
Alkyl(aryl)benzazolylazoketoximes were obtained by nitrosation of the hydrazones of alkyl- and aryl-substituted aldehydes by means of n-amyl nitrite. On the basis of data from IR and PMR spectroscopy it was concluded that the synthesized compounds ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18d6f0174dc4bda0fd55b56675f80427
https://doi.org/10.1007/bf00513171
https://doi.org/10.1007/bf00513171
Publikováno v:
Chemistry of Heterocyclic Compounds. 12:1234-1238
A number of benzazolylhydrazones and benzazolylformazans containing an o-hydroxy or o-methoxy group in the phenyl ring attached to the meso-carbon atom were synthesized. The structure of the compounds in various solvents was studied by means of IR an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4dfca2dadd566f30185b06a4d040c49
https://doi.org/10.1007/bf00470221
https://doi.org/10.1007/bf00470221
Publikováno v:
Journal of Applied Spectroscopy. 38:334-338
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d89cb1eb7914d158e7ba8c548e98b885
https://doi.org/10.1007/bf00659889
https://doi.org/10.1007/bf00659889
Publikováno v:
Chemistry of Heterocyclic Compounds. 17:1097-1102
A mass-spectrometric study of a series of alkyl(aryl)benzazolylazoketoximes as compared with arylazoketoxime was made. The ratios of the tautomers (oxime ⇆ nitroso) in the gas phase at the moment of vaporization of the samples were determined. It i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a290765dd7d7b374c39501b1186f945
https://doi.org/10.1007/bf00506460
https://doi.org/10.1007/bf00506460
Publikováno v:
Chemistry of Heterocyclic Compounds. 11:1208-1211
A series of 1-(2′-pyrimidyl)-3,5-diarylformazans was synthesized. Their structures were studied by means of IR and electronic spectroscopy, and assumptions regarding the most probable tautomeric forms of the investigated compounds were made. The io
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::931732539c4782566252e36139ae0ae0
https://doi.org/10.1007/bf00667624
https://doi.org/10.1007/bf00667624
Autor:
G. N. Lipunova, L. L. Popova, N. P. Bednyagina, A. I. Yalandina, E. G. Kovalev, L. G. Egorova
Publikováno v:
Chemistry of Heterocyclic Compounds. 21:684-688
Benzimidazolyl formazans were titrated spectrophotometrically and their base constants were determined. On the basis of quantum mechanical calculations of electron spectra a hypothesis concerning the chelate structure of the unsymmetrical benzimidazo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::847c47c53b34c404fb70eeef1f893306
https://doi.org/10.1007/bf00515073
https://doi.org/10.1007/bf00515073