Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Lubomir A. Lubenov"'
Autor:
Vanya B. Kurteva, Lubomir A. Lubenov, Daniela V. Nedeltcheva, Rositsa P. Nikolova, Boris L. Shivachev
Publikováno v:
ARKIVOC, Vol 2012, Iss 8, Pp 282-294 (2012)
Externí odkaz:
https://doaj.org/article/d15235cbf37e475ba9a566d65b4a7576
Autor:
Vanya B. Kurteva, Lubomir A. Lubenov, Katharina M. Fromm, Rositsa P. Nikolova, Boris Shivachev
A series of Betti bases from 4‐(3‐pyridyl)azo‐1‐naphthol dye, possessing flexible methylene or more constrained aryl‐methyne spaced NH‐containing side‐chains, were obtained and characterized. It was shown by NMR spectroscopy that the li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bee0648083e0b2e1f42f8c31f20b93ea
http://doc.rero.ch/record/323823/files/fro_bbf.pdf
http://doc.rero.ch/record/323823/files/fro_bbf.pdf
Publikováno v:
Separation Science and Technology. 51:290-299
Solvent extraction of lanthanoids (La-Gd) with mixtures of a chelating extractants (HL), either 4-(4-fluorobenzoyl)-3-methyl-1-phenyl-pyrazol-5-one(HPMFBP) or 3-methyl-4-(4-methylbenzoyl)-1-phenyl-pyrazol-5-one (HPMMBP) and 1-(2-thienyl)-4,4,4-triflu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28f3140218e4da4059f50ca36c93b02c
https://doi.org/10.1080/01496395.2015.1088028
https://doi.org/10.1080/01496395.2015.1088028
Autor:
Maria A. Petrova, Boris Shivachev, Vanya B. Kurteva, Svetlana Simova, Liudmil Antonov, Rositsa P. Nikolova, Lubomir A. Lubenov
Publikováno v:
RSC Advances. 5:73859-73867
The conformational behaviour of 3-methyl-4-(4-methylbenzoyl)-1-phenyl-pyrazol-5-one was studied using a combination of X-ray diffraction, NMR spectroscopy in solution and solid state, and DFT calculations in the gas phase. The compound can adopt four
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75ff908febce237f420aaa63d9250115
https://doi.org/10.1039/c5ra11858a
https://doi.org/10.1039/c5ra11858a
Publikováno v:
RSC Adv.. 4:175-184
Direct acid catalyzed formation of 2,3-disubstituted imidazo[1,2-a]pyridines from 2-aminopyridines and acetophenones was studied in order to gain insight into the reaction mechanism. The formation of differently substituted products was explained by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0005061a87148fbc836584ac1706dc6
https://doi.org/10.1039/c3ra45005h
https://doi.org/10.1039/c3ra45005h
Publikováno v:
Comprehensive Organic Chemistry Experiments for the Laboratory Classroom ISBN: 9781849739634
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ce50aaf60de716fe31c73c312ab27d4
https://doi.org/10.1039/9781849739634-00107
https://doi.org/10.1039/9781849739634-00107
Autor:
Boris Shivachev, Fadhil S. Kamounah, Vera Deneva, Yana Manolova, V. Kuteva, Lubomir A. Lubenov, Liudmil Antonov, R. P. Nikolova
Publikováno v:
Journal of Molecular Structure. 1036:267-273
4-((Phenylimino)methyl)naphthalen-1-ol and 4-((phenylimino)methyl)-2-(piperidin-1-ylmethyl)naphthalen-1-ol have been synthesized and their tautomeric properties were investigated using molecular spectroscopy (UV–Vis absorption/emission and NMR), X-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20f7fbffa10bd1f7e1011014ee812ffe
https://doi.org/10.1016/j.molstruc.2012.11.055
https://doi.org/10.1016/j.molstruc.2012.11.055
Publikováno v:
Separation and Purification Technology. 95:58-63
Synergistic solvent extraction of selected trivalent lanthanoids (La, Nd, Eu, Ho and Lu) with mixtures of a chelating extractants (HL), either 4-(4-fluorobenzoyl)-3-methyl-1-phenyl-pyrazol-5-one (HPMFBP) or 3-methyl-4-(4-methylbenzoyl)-1-phenyl-pyraz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3649207a3a6aa4831fc154d45c2a19f4
https://doi.org/10.1016/j.seppur.2012.04.022
https://doi.org/10.1016/j.seppur.2012.04.022
Publikováno v:
Industrial & Engineering Chemistry Research. 50:12170-12176
4-(4-Fluorobenzoyl)-3-methyl-1-phenyl-pyrazol-5-one (HL) has been synthesized and its complexation properties in solution were examined. Mixed ligand chelate extraction of trivalent lanthanoids (La...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2650c3541f1b967c264640e0fcc2131
https://doi.org/10.1021/ie201207n
https://doi.org/10.1021/ie201207n
Publikováno v:
New Journal of Chemistry
New Journal of Chemistry, Royal Society of Chemistry, 2015, 39 (10), pp.7932-7941. ⟨10.1039/C5NJ00777A⟩
New Journal of Chemistry, Royal Society of Chemistry, 2015, 39 (10), pp.7932-7941. ⟨10.1039/C5NJ00777A⟩
International audience; The study of trivalent lanthanoid (La, Nd, Eu, Ho and Lu) extraction by two individual ligands, one acidic such as a pyrazolone derivative, 3-methyl-1-phenyl-4-(4-phenylbenzoyl)-pyrazol-5-one (HL), and one neutral such as 5,11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13923ba65c2f8fb8dcb327122f506076
https://hal.archives-ouvertes.fr/hal-02272502/document
https://hal.archives-ouvertes.fr/hal-02272502/document