Zobrazeno 1 - 10
of 18
pro vyhledávání: '"O. V. Lefedova"'
Publikováno v:
Тонкие химические технологии, Vol 18, Iss 4, Pp 315-327 (2023)
Objectives. 2-Hydroxy-nitroazobenzenes comprise reagents for the synthesis of heteroaromatic compounds, in the molecules of which the benzene and azole cycles are annulated. These reagents are widely used in the production of chemical products for va
Externí odkaz:
https://doaj.org/article/95d2858ce9ab40a5bdb7475521154325
Publikováno v:
Russian Journal of Physical Chemistry A. 92:669-673
The kinetics of hydrogenation of 4-nitro-2′-hydroxy-5′-methylazobenzene in aqueous 2-propanol solution over the skeletal nickel is investigated at different initial concentrations. It is established that the hydrogenation of 4-nitro-2′-hydroxy-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91cf865ef40d6f4e0b8021de6df6ee50
https://doi.org/10.1134/s0036024418040131
https://doi.org/10.1134/s0036024418040131
Publikováno v:
Kinetics and Catalysis. 57:212-218
The kinetics of the hydrogenation of nitrosobenzene and nitrobenzene is simulated taking into account accompanying processes and specific features of the conversion of reactive groups. The constants of the hypothetical reaction steps are calculated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9763e77baf33dfffe50d7ddfdeec0dc0
https://doi.org/10.1134/s0023158416020117
https://doi.org/10.1134/s0023158416020117
Publikováno v:
Russian Journal of Physical Chemistry A. 89:1772-1775
The sequence of the reduction of nitro and azoxy groups in the combined hydrogenation of nitrobenzene and azoxybenzene on skeletal nickel in an aqueous azeotropic solution of propan-2-ol is considered. The time dependences of the rates and concentrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7246a4c5949b85e01dc0f0da07c712c0
https://doi.org/10.1134/s0036024415100222
https://doi.org/10.1134/s0036024415100222
Publikováno v:
Russian Journal of Physical Chemistry A. 88:1323-1328
The kinetics of the hydrogenation of intermediates in the reduction of nitrobenzene in aqueous 2-propanol with acetic acid and sodium hydroxide additions on nickel catalysts was studied. A kinetic description of liquid-phase hydrogenation of azobenze
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95d8c283394cefe05005b707282379f7
https://doi.org/10.1134/s0036024414080251
https://doi.org/10.1134/s0036024414080251
Publikováno v:
Russian Journal of Physical Chemistry A. 87:571-575
It is shown experimentally that the hydrogenation of 4-nitroaniline and azoxybenzene over a skeletal nickel catalyst in 2-propanol aqueous solutions proceeds selectively with the formation of the corresponding amines without the accumulation of side
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b2db1949232de4dd48e6e090812ac10
https://doi.org/10.1134/s0036024413040195
https://doi.org/10.1134/s0036024413040195
Autor:
M. P. Nemtseva, O. V. Lefedova
Publikováno v:
Russian Journal of Applied Chemistry. 85:1128-1132
Liquid-phase hydrogenation of 2-(2-hydroxy-5-methylphenyl)benzotriazole on Raney nickel with the formation of tetrahydro-2-(2-hydroxy-5-methylphenyl)benzotriazole exhibiting photostabilizing properties was studied. Enhancement of the resistance of po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f15a6c874d565d907a2d82132f096f9
https://doi.org/10.1134/s1070427212070245
https://doi.org/10.1134/s1070427212070245
Publikováno v:
Russian Journal of Physical Chemistry A. 86:953-958
Kinetic studies of hydrogen absorption by porous nickel catalyst establish that there are three regions on kinetic curves of the process differing in their regularities of adsorption. The dependence of the observed rate of hydrogen absorption on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14a3585049f352953548998b06784893
https://doi.org/10.1134/s0036024412060271
https://doi.org/10.1134/s0036024412060271
Thermodynamic and kinetic characteristics of liquid phase hydrogenation of substituted nitrobenzenes
Publikováno v:
Russian Journal of Physical Chemistry A. 86:908-912
Quantum-chemical calculations of the thermodynamic characteristics of hydrogenation of nitrobenzoic acid isomers and nitrophenol in the gas phase and also in aqueous and alcoholic media were performed. Correlation dependences between the calculated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f01b9eefe9ac9f578be355cfcb9fb239
https://doi.org/10.1134/s003602441205024x
https://doi.org/10.1134/s003602441205024x
Publikováno v:
Russian Journal of Physical Chemistry A. 88:588-590
The effect of addition of acetic acid and sodium hydroxide to an aqueous azeotropic solution of propan-2-ol on the rate of 4-nitroaniline hydrogenation is studied. The base additive accelerates the apparent rate of nitro group reduction, while the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a5bc66dc82d1a062119d34e1b197276
https://doi.org/10.1134/s0036024414040189
https://doi.org/10.1134/s0036024414040189