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1.
O. D. Zhilina L. B. Shagalov A. M. Vasil'ev N. N. Suvorov 《Chemistry of Heterocyclic Compounds》1980,16(7):735-740
It was established that products of monosubstitution of 4-nitro- and 7-nitro-3-formyl[4,5] benzindoles and products of disubstitution of 4,8-dinitro- and 7,8-dinitro-3-formyl [4,5] benzindoles are formed in low yields in the nitration of 3-formyl [4,5]benzindole with sodium nitrate in concentrated sulfuric acid. Similar nitration of 3-formyl [6,7] benzindole leads to 9-nitro- and 5, 6-dinitro-3-formyl [6,7]benzindoles. The 3-formylnitrobenzindoles obtained were converted to nitrovinyl derivatives by condensation with nitromethane.See [1] for Communication [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 949–955, July, 1980. 相似文献
2.
S. A. Andronati A. V. Bogat-skii G. N. Gordiichuk Z. I. Zhilina L. M. Yagupol'skii 《Chemistry of Heterocyclic Compounds》1975,11(2):230-233
5-Difluoromethylsulfonyl-2-aminobenzophenone was synthesized by condensation of p-difluoromethylsulfonylaniline with benzoyl chloride. 5-Difluoromethoxy- and 5-difluoromethylthio-2-aminobenzophenones were obtained by condensation of phenylacetonitrile with the appropriate p-substituted nitrobenzenes and subsequent reduction of the resulting anthranils. 7-Difluoromethoxy-, 7-difluoromethylthio-, and 7-difluoromethylsulfonyl-5-phenyl-1,2-dihydro-3H-1,4-benzodiazepin-2-ones were obtained by the successive action of bromoacetyl bromide and ammonia on the 2-aminobenzophenone derivatives or by reaction of 2-aminobenzophenones with aminoacetyl chloride hydrochloride. The structure of the 1,4-benzodiazepines was confirmed by a study of the UV, IR, PMR, and mass spectra. 相似文献
3.
Tatyana N. Moshkina Emiliya V. Nosova Julia V. Permyakova Galina N. Lipunova Ekaterina F. Zhilina Grigory A. Kim Pavel A. Slepukhin Valery N. Charushin 《Molecules (Basel, Switzerland)》2022,27(21)
Design and synthesis of 2-(aryl/thiophen-2-yl)quinazolin-4(3H)-ones and 4-cyano-2-arylquinazolines with Et2N-, Ph2N- or carbazol-9-yl- electron donating fragment are described. The key photophysical properties of these compounds have been studied by UV/Vis absorption and fluorescence spectroscopy in solvents of different polarity (toluene and MeCN). 2-(Aryl/thiophen-2-yl)quinazolin-4(3H)-ones show fluorescence in blue-green region in toluene solution with quantum yields up to 89% in the case of 2-(4’-N,N-diphenylamino[1,1’-biphenyl]-4-yl)-quinazolin-4(3H)-one. Moreover, triphenylamino derivative based on quinazolin-4(3H)-one with para-phenylene linker displays the highest quantum yield of 40% in powder. The fluorescence QY of Et2N and Ph2N derivatives decrease when going from toluene to MeCN solution, whereas carbazol-9-yl counterparts demonstrate strengthening of intensity that emphasizes the strong influence of donor fragment nature on photophysical properties. 4-Cyanoquinazolines are less emissive in both solvents, as well as, in solid state. The introduction of cyano group into position 4 leads to orange/red colored powder and dual emission bands. Some molecules demonstrate the increase in emission intensity upon addition of water to MeCN solution. According to frontier molecular orbitals (HOMO, LUMO) calculations, the energy gap of 4-cyanoquinazoline decreases by more than 1 eV compared to quinazolin-4-one, that is consistent with experimental data. 相似文献
4.
5.
Semenova A. M. Malenkih N. A. Zhilina E. F. Mekhaev A. V. Pestov A. V. 《Russian Chemical Bulletin》2022,71(1):146-151
Russian Chemical Bulletin - The reaction of carbalkoxylation of polyethylene polyamines (PEPA) with various dialkyl carbonates, including fluorine-containing ones, was studied in order to obtain... 相似文献
6.
N. I. Chistyakova V. S. Rusakov A. A. Shapkin T. N. Zhilina D. G. Zavarzina 《Hyperfine Interactions》2010,197(1-3):325-330
Mössbauer investigations between 4.5 and 300 K of iron minerals formed during the growth of the binary culture containing two anaerobic alkaliphilic bacteria-dissimilatory iron-reducing Geoalkalibacter ferrihydriticus (strain Z-0531) and organotrophic Anaerobacillus alkalilacustre (strain Z- 0521), have been carried out. Mannitol (2 g/l) as the sole substrate with amorphous Fe(III) hydroxide at final concentration 10 or 100 mM were added to the mineral medium. The formation of siderite and probable magnetite or a mixture of magnetite and maghemite were observed. 相似文献
7.
Concentration curves δHm=f(m) are presented for wide concentration ranges at 10 and 25? C; the shape of the curves is discussed. 相似文献
8.
Lubov' V. Snegur Yury S. Nekrasov Nataliya S. Sergeeva Zhanna V. Zhilina Vera V Gumenyuk Zoya A. Starikova Alexander A. Simenel Nataliya B. Morozova Irina K. Sviridova Valery N. Babin 《应用有机金属化学》2008,22(2):139-147
The toxicity of ferrocenylethyl benzotriazole ( 1 ) and other ferrocene compounds including ferrocenylmethyl benzimidazoles ( 4,5,6,11 ), ferricenium salts ( 3,9,10 ) and ferrocenylmethyl adenine ( 7 ), was studied. All ferrocene complexes under investigation showed low or medium toxicities. On the basis of an earlier model of chemical carcinogenesis, the antitumor activity of ferrocenylalkyl azoles 1, 8 and ferricenium salts 9, 10 was studied in vivo in the so‐called sub‐capsular test on human tumors. This effectiveness was compared with that of cisplatin. A series of ferrocenylalkyl azoles were synthesized by interacting azoles either with α‐hydroxyalkyl ferrocenes FcC(OH)R1R2 in organic solvent in the presence of aqueous HBF4 in quantitative yields or with trimethyl(aminomethyl)ferrocene iodide in an aqueous‐basic medium in good yields. The X‐ray determinations of molecular and crystal structures of α‐(1‐benzotriazolyl)ethylferrocene ( 1 ) and α‐(1‐naphthatriazolyl)ethylferrocene ( 12 ) were performed. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
9.
Nikita A. Kazin Nadezhda S. Demina Roman A. Irgashev Ekaterina F. Zhilina Gennady L. Rusinov 《Tetrahedron》2019,75(33):4686-4696
The effective approaches for regioselective double formylation and acetylation of 5,12-dialkyl-6,7-diaryl-substituted 5,12-dihydroindolo[3,2-a]carbazoles by their treatment with dichloromethyl methyl ether in the presence of SnCl4 or with acetyl chloride in the presence of AlCl3 to afford the 2,9-diformyl or 2,9-diacetyl derivatives, respectively, were developed. Furthermore, new 2,9-bis(2,2-dicyanovinyl) derivatives were synthesized by the Knoevenagel condensation of diformyl-containing substrates with malononitrile, when new 2,9-bis(quinoxaline-2-yl)- and 2,9-bis(benzo[g]quinoxaline-2-yl) derivatives were formed via microwave-promoted oxidation of diacetyl-containing substrates with SeO2 to the corresponding diglyoxals, followed by the reaction of these intermediates with o-phenylendiamine or 2,3-diaminonaphthalene, respectively. The basic optical and electrochemical properties of some 5,12-dihydroindolo[3,2-a]carbazoles were investigated. 相似文献
10.
O. V. Zhilina A. N. D’yachenko V. V. Kozik R. I. Kraidenko 《Russian Journal of Inorganic Chemistry》2014,59(6):536-540
The thermal destruction of ammonium penta-, tetra-, and trichlorocobaltates(II) was studied. Thermogravimetric analysis (TGA) data was used to calculate the thermal destruction activation energy, which was 8.6 kJ/mol for (NH4)3CoCl5, 14.8 kJ/mol for (NH4)2CoCl4, and 117.4 kJ/mol for NH4CoCl3. The decomposition enthalpy of 35.9 kJ/mol for (NH4)3CoCl5, 12.1 kJ/mol for (NH4)2CoCl4, and 166.3 kJ/mol for NH4CoCl3 was determined from differential scanning calorimetry (DSC) data. 相似文献