F 70 Fluoroalkyl-containing 2-arylhydrazono-1,3-dicarbonyl compounds in the reactions with ethylenediamine and polyethylenepolyamines [Text] / O. G. Khudina, Ya. V. Burgart, V. I. Saloutin, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2004. - Vol. 125, № 3. - P401-407 : ил. - Библиогр.: с. 407 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 2-ARYLHYDRAZONO-1,3-DIKETONE -- 2-ARYLHYDRAZONO-3-OXO ESTER -- ETHYLENEDIAMINE -- DIETHYLENETRIAMINE -- TRIETHYLENETETRAMINE Аннотация: Acyclic N,N?-(poly)ethylene-bis(2-arylazo-1,3-aminovinylketones) are the main products in the reactions of fluoroalkyl-containing 2-arylhydrazono-1,3-diketones with ethylenediamine, diethylenetriamine and triethylenetetramine. Nickel(II) and copper(II) chelates were obtained from N,N'-ethylene-bis(2-arylazo-1,3-aminovinylketones). 2-Arylhydrazono-3-fluoroacyl esters formed N,N?-ethylenediamides of 2-arylhydrazono-3-fluoroacylpropionic acids with ethylenediamine. Interaction of 2-arylhydrazono-3-fluoroacyl esters with diethylenetriamine and triethylenetetramine resulted in and decomposition products.???? \\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2004, v.125, p.401.pdf |
S 89 Structural and physicochemical characteristics of chelate nickel(II ) compounds based on 1,2,3-triketone (hydrazone)imines [Electronic resource] / O. G. Khudina, E. V. Shchegol'kov, Ya. V. Burgart, V. I. Saloutin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2007. - Vol. 56, № 1. - P108-114 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The crystal structures of the chelates NiIIL (L2? are the N,N?-(o-phenylene)-bis[4-(4-methylphenyl)hydrazono-3-oxo-1,1,2,2-tetrafluorononane-5-iminate], N,N?-ethylene-bis[3-(4-methylphenyl)hydrazono-4-oxo-5,5,6,6,7,7,8,8-octafluorooctane-2-iminate], or N,N?-ethylene-bis(4-hydroxy-5,5,6,6,7,7,8,8-octafluoro-3-octene-2-iminate) anions) were studied by X-ray diffraction. Magnetic measurements and ESR spectroscopic studies revealed the appearance of paramagnetism due to a tetrahedral distortion of the coordination unit and also the unusual behavior of the effective magnetic moment at low temperatures \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2007, 56 (1), 108-114.pdf |
M 81 Mono- and diadducts and bicyclic adducts in reactions of 2,3-dicyano-1-ethylpyrazinium cation with C- and O-nucleophiles [Electronic resource] / P. A. Slepukhin, G. L. Rusinov, V. N. Charushin, V. I. Filyakova, N. S. Karpenko, D. B. Krivolapov, I. A. Litvinov // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 6. - P1272-1278 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Products of diaddition of O- and C-nucleophiles to the 2,3-dicyano-1-ethylpyrazinium cation were isolated for the first time. The tandem AN—AN reactions of 2,3-dicyano-1-ethylpyrazinium tetrafluoroborate with 1,3-diketone enolates or keto esters afforded tetrahydrofuro[2,3-b]pyrazine derivatives, whereas cyclization with ethylene glycol gave tetrahydro-1,4-dioxino[2,3-b]pyrazine. Crystallographic data on the three-dimensional structures of these compounds were reported \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2004, 53 (6), 1272.pdf |
P 56 Phenylene(ethylene)-n,n-bis(ethyl-3-amino-2-polyfluoroacylpropionates) - new ligands for preparation of metalocjmplexes [Text] / M. V. Pryadeina, Ya. V. Burgart, V. Saloutin, O. N. Chupakhin // V Conference of Clusters Chemistry and Polynuclear Compounds "Clusters-2006", Astrakhan, Russia. - Астрахань, 2006. - P83 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
O-97 Oxidation of camphor ethylene dithioacetal [Electronic resource] / A. V. Timshina, S. A. Rubtsova, I. N. Alekseev, P. A. Slepukhin, A. V. Kuchin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2010. - Vol. 46, № 3. - P363-367 . - Springerlink.com Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: (1R,1R,2S,4R)-1,7,7-Trimethylspiro[bicyclo[2.2.1]heptane-2,2?-[1,3]dithiolane] 1-oxide, (1R,2S,3R,4R)-1,7,7-trimethylspiro[bicyclo[2.2.1]heptane-2,2-[1,3]dithiolane] 1,1,3-trioxide, and (1R,4R)-1,7,7-trimethylspiro[bicyclo[2.2.1]heptane-2,2?-[1,3]dithiolane] 1,1,3,3-tetraoxide were synthesized by oxidation of camphor ethylene dithioacetal with m-chloroperoxybenzoic acid at different substrate-tooxidant ratios. The structure of the products was proved by IR and NMR spectroscopy and X-ray analysis \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2010, 46 (3), 363.pdf |
S 98 Synthesis, characterization and ethylene oligomerization studies of nickel(II) based new formazane derivatives [Text] / A. V. Zaidman, I. G. Pervova, A. I. Vilms, G. P. Belov, R. R. Kayumov, P. A. Slepukhin, I. N. Lipunov // Inorganica Chimica Acta. - 2011. - Vol. 367, № 1. - P29-34 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A series of nickel(II) complexes based novel mono- and bis-formazan ligands has been synthesized and characterized with IR, UV, NMR spectroscopies, CHN analysis, mass spectrometry, and single crystal X-ray diffraction analysis. The prepared complexes have been tested for catalytic activity in ethylene oligomerization \\\\Expert2\\nbo\\Inorganica Chimica Acta\\2011, v. 367, p.29.pdf |
A 62 Antifriction properties of fluorine-containing poly(ethylene glycol) esters / T. I. Gorbunova, D. N. Bazhin, A. Ya. Zapevalov, L. G. Korshunov, I. V. Beketov, V. I. Saloutin // Russian Journal of Applied Chemistry. - 2012. - Vol.85, №2. - С. 267-271 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ANTIFRICTION PROPERTIES -- FLUORINE-CONTAINING POLY(ETHYLENE GLYCOL) ESTERS -- EQUILIBRIUM MIXTURES Аннотация: Equilibrium mixtures of fluorine-containing mono- and diesters based on poly(ethylene glycol) (M = 1000) were synthesized. The effect of these compounds on antifriction properties of industrial oil was studied \\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2012, v. 85, N 2, p.267.pdf |
P 99 Pyrolysis of polystyrene in coal tar and ethylene tar pitches [Электронный ресурс] / E. Andreikov, I. S. Amosova, Yu. A. Dikovinkina, O. Krasnikova, M. G. Pervova // Russian Journal of Applied Chemistry. - 2012. - Vol.85, №1. - P89-97 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PYROLYSIS -- POLYSTYRENE -- ETHYLENE Аннотация: Pyrolysis of polystyrene in the medium of coal tar pitch and of pitch prepared from ethylene production tar was performed in the temperature range 360-420°C at atmospheric pressure |
I-55 Imidazole-containing chitosan derivative: a new synthetic approach and sorption properties [Electronic resource] / A. V. Pestov, S. YU. Bratskaya, Yu. A. Azarova, Yu. G. Yatluk // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2012. - Vol.61, №10. - С. 1959-1964. - Bibliogr. : p. 1963-1964 (33 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CHITOSAN -- SORBENT -- GOLD(III) Аннотация: A novel method for the synthesis of a hetaryl containing chelate amino polymer, namely, N (4(5) imidazolylmethyl)chitosan (IMC), with a degree of substitution up to 0.3 was pro posed. The "synthesis in gel" approach involves direct substitution of the hydroxyl group in 4(5) imidazolylmethanol. The structures of these polymers were confirmed by 1H NMR data. For sorption studies, IMC samples were crosslinked with epichlorohydrin and diglycidyl ethers of ethylene glycol and diethylene glycol. The degrees of swelling and sorption properties of the polymers largely depend on the crosslinking agent and the degree of crosslinking. The sorption capacities of IMC for AuIII, PtIV, and PdII ions are higher than those of the nonmodified polymer. The extraction of noble metal ions from chloride solutions becomes more selective with increasing degree of crosslinking. The sorption capacity of IMC for CoII and NiII ions is higher than those of chitosan and its known N heterocyclic derivatives \\\\expert2\\NBO\\Russian Chemical Bulletin\\2012, 61 (10), 1959-1964.pdf |
S 98 Synthesis, photochemical and luminescent properties of (E)-2-(2-hydroxyarylethylene)-3-phenylquinazolin-4(3H)-ones [Electronic resource] / I. G. Ovchinnikova, G. A. Kim, E. G. Matochkina, M. I. Kodess, N. V. Barykin, O. S. Eltsov, E. V. Nosova, G. L. Rusinov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2015. - Vol. 63, № 11. - С. 2467-2477. - Bibliogr. : p. 2477 (22 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): (E)-2-STYRYLQUINAZOLIN-4(3H)-ONES -- LUMINESCENCE -- ORTHO-HYDROXYSTYRYLQUINAZOLINONES Аннотация: Photoinduced transformations of 2-styrylquinazolinones in solutions were studied using absorption and NMR spectroscopy methods. A possibility of control of the photochemical isomerization rate of quinazolinone 2-(hydroxyaryl)ethenyl derivatives by changing the pH of the medium was demonstrated. The bases and the solvent nature also affect the luminescence intensity of solutions of these compounds in the wavelength range of 550-650 nm. The differences in the steric organization of the ortho-hydroxystyryldiazinone system in crystals and in solutions related to the turn of the aryl group were found. Their influence on the competing processes of luminescence and photochemical transformation of the ethylene fragment were shown. The fact of reversible photo/thermal E-Z-isomerization was established for (E)-2-(2-hydroxystyryl)-3-phenylquinazolin-4(3H)-one. \\\\expert2\\nbo\\Russian Chemical Bulletin\\2015, 63 (11), 2467-2477.pdf |
C 91 Crystal structure, spectral and thermal properties of 1,2-bis[2-(4,4,4-trifluoro-1-hydroxy-3-oxobut-1-enyl)phenoxy]-ethane and luminescent properties of its complexes with Al(III) and Eu(III) [Electronic resource] / L. A. Khamidullina, K. L. Obydennov, P. A. Slepukhin, I. S. Puzyrev // Journal of Molecular Structure. - 2016. - Vol. 1125. - С. 550-557 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): LANTHANIDE COMPLEXES -- ENOL-TAUTOMERISM -- BETA-DIKETONES Аннотация: Describing the crystal structure, packing, FT-IR, UV-Vis and NMR spectra and thermal properties of new polydentate O-ligand based on aryl-beta-diketone moieties connected by ethylene glycol spacer is the subject of this article. The results of IR, UV-Vis and H-1 NMR spectroscopy as well X-ray crystallography of 1,2-bis[2-(4,4,4-trifluoro-1-hydroxy-3-oxobut-1-enyl)phenoxy]-ethane (BTFPE) indicate that the compound exists in solution and in solid as enol. The crystal structure analysis shows that BTFPE has C2/c group of the monoclinic system. Typical S(6) intramolecular hydrogen bond occurs in each 1,3-diketo moiety. This bond is asymmetric and the H atom is closest to the 0 atom adjacent to the phenyl ring. The packing of the crystal is sustained by numerous C-H center dot center dot center dot O, O-H center dot center dot center dot F, C-H center dot center dot center dot F interactions. In the crystal, supramolecular zig-zag chains are formed along the c-axis. Short contacts interconnect the molecules into a two-dimensional layered structure wherein each molecule is node between chains. According to the thermal investigation this compound is stable up to 200 degrees C in air atmosphere, above this temperature it decomposes. Photoluminescent properties of aluminum(III) and europium(III) complexes of BTFPE were evaluated in chloroform solution and in the solid state. Aluminum complex of BTFPE shows blue luminescence with maximum at 445 nm. Europium complex exhibits intense red color luminescence at 613 nm from central Eu(III) ion through the excitation of the ligand. \\\\expert2\\NBO\\Journal of Molecular Structure\\2016, v.1125, p.550-557.pdf |
N 52 New examples of chelating triketone-like ligands that promote formation of binuclear complexes [Electronic resource] / A. V. Pestov, L. A. Khamidullina, V. Ya. Sosnovskikh, P. A. Slepukhin, I. Puzyrev // Polyhedron. - 2016. - Vol. 106. - С. 75-83 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): cHROMAN-4-ONES -- TRIKETONE-LIKE LIGANDS -- BINUCLEAR COMPLEXES Аннотация: The present work is to investigate of binding properties of chelating triketone-like ligands, which are able to forming of binuclear complexes. The studied compounds are able to exist in cyclic or 'close form' (phenyl substituted or unsubstituted 2-hydroxy-2-(trifluoromethyl)chroman-4-ones) as well as in their associated 'open form' (phenyl substituted or unsubstituted 1,1,1-trifluoro-4-(2-hydroxyphenyl)butan-2,4-diones). In this paper there is good evidence for the compounds are being in solid in 'close form' (pre-ligands), whereas in basic solutions and when involved in metal ion coordination sphere they are being in 'open form' (ligands). Protolytic equilibria of the compounds in aqueous ethylene glycol solutions were studied. Schemes of acid-base equilibria of these compounds were proposed. Apparent ionization constants of compounds containing electron-donor and electron-acceptor substituents in the benzene ring were determined using spectrophotometric method. The binding properties of 1,1, 1-trifluoro-4-(2-hydroxyphenyl)butan-2,4-dione towards Cu(II), Ni(II) and Co(II) were studied. The formation of 2:2 metal-ligand complexes was observed. X-ray analysis gives evidence the formation of complexes in which the ratio metal to ligand can be 1:2 and 2:2. Similar to beta-triketones the studied ligands tends to formation of binuclear complexes with transition metal ions \\\\expert2\\NBO\\Polyhedron\\2016, v.106, p.75-83.pdf |
Gabov, I. S. The reactivity of ethylene carbonate derivatives toward to imidazoles / I. S. Gabov, A. V. Pestov // Mendeleev 2021: book of abstracts XII international conference on chemistry for young scientists. - Saint Petersburg, 2021. - С. 547 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ИМИДАЗОЛЫ |
A 10 A practicable synthesis of 2,3-disubstituted 1,4-dioxanes bearing a carbonyl functionality from α,β-unsaturated ketones using the williamson strategy / A. De, A. Majee, S. Santra [et al.] // Organic & biomolecular chemistry. - 2021. - Vol. 19, № 6. - P1278-1286 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: We have observed that a reagent combination of NaIO4 and NH2OH·HCl reacts with α,β-unsaturated ketones followed by the nucleophile ethylene glycol allowing the synthesis of 2,3-disubstituted 1,4-dioxanes using cesium carbonate as a base under Williamson ether synthesis. This reaction is useful for the synthesis of functionalized 1,4-dioxane having a carbonyl functionality. A variety of 2,3-disubstituted 1,4-dioxanes have been synthesized using these reaction conditions. A probable reaction mechanism has also been proposed. |