Topics in Heterocyclic Chemistry
Critical reviews on "Heterocyclic Compounds" within topic-related volumes dealing with all aspects such as synthesis, reaction mechanisms, structure complexity, reactivity, stability, biology, pharmacological aspects, applications in material sciences.
Подобные документы
Silicides of rare earth metals. Crystallographic data for a binary compound in Pr-Si and Zr-Si systems. Study of the structure of the binary compound Zr3Si2. Analytical correction of absorption. Displacement parameters and interatomic distances.
??????, добавлен 23.02.2017New facile method for the controllable synthesis of high quality single-phase nanowires with from nanowires templates. Detailed characterization of the superconducting and transport properties of nanowires. Synthesis of porous nanowires and nanotubes.
??????, добавлен 30.07.2016Study of kinetics of alkaline hydrolysis reaction of methyl esters of substituted 4,5-dimethoxy-N-phenyl-Anthranilic acids in binary solvent dioxane – water, analysis of the dependence lgkT from the nature and position of substituents in pantranco.
??????, добавлен 29.01.2016The X-ray diffraction study of the isotypic structures of I and II reveals that the crystal structure consists of three structural units. The coordination polyhedron of the lanthanide atom. Atomic coordinates and equivalent displacement parameters.
??????, добавлен 23.02.2017The use of scanning electron microscopy to study the reactivity of iron in yellow color with different iron concentrations. Substantiation of the possibility of applying the archeometric approach in studies of the chemical corrosion of ancient documents.
??????, добавлен 21.12.2016- 56. Reactions of 1-(4-hydroxyphenyl)-3-(4-nitrophenyl)-5-ethyl-1,2,4-triazole with electrophilic agents
To synthesize new biologically active compounds, the reactions of electrophilic substitution of 1-(4-hydroxyphenyl)-3-(4-nitrophenyl)-5-ethyl-1, 2, 4-triazole (I) have been studied. The structure of the new compounds was confirmed by 1H NMR spectra.
??????, добавлен 27.07.2016 - 57. Copper(II) and nickel(II) with N-bis(salicylidene)thiosemicarbazide heterometal complex compounds
Heterometal coordination compounds of copper(II), nickel(II), alkaline-earth metals with N-bis(salicylidene)thiosemicarbazide have been synthesized. Using elemental analysis has been shown that the synthesized compounds have semi-conducting properties.
??????, добавлен 30.08.2016 A review on novel ring transformations of dinitropyridones and nitropyrimidinones. The synthesis of functionalized molecules, such as nitroanilines, nitropyridines by the ring transformation of dinitropyridones as the nitromalonaldehyde equivalent.
??????? ??????, добавлен 05.03.2013- 59. Algorithm of optimal solution search for the control with model system of methanol synthesis column
The mechanism of development and implementation of the optimal synthesis search algorithm and analysis of gas costs. Features of control using the maintenance schedule. Technological process of methanol synthesis under conditions close to optimal.
??????, добавлен 14.01.2017 Study of ternary intermetallic compounds RxMyXz (R = rareearth Element, M = d-metal, X = p-metal). Results of identification of the new R-Au-Al compound. The starting materials for the synthesis of R-Au-Ga. Function of the profile form of pseudo-Voigt.
??????, добавлен 23.02.2017- 61. Ti-Al alloy
A new process for developing titanium aluminides using chemical vapor synthesis was investigated in a laboratory experiment. Aluminum subchloride was used as the reducing agent in the reaction with TiCl4 and the source of aluminum for Ti-Al alloy.
???????????? ??????, добавлен 01.11.2019 The transformation of 4-oxo-3,4-dihydroquinazolinone derivatives containing an ester group under the conditions of the Grignard reaction. Investigated acetic acid esters proceeds involving the ester group and the excess. The studying reaction of reagent.
??????, добавлен 01.03.2014Two possible approaches to the phenothiazine ring that, to the authors’ knowledge, have not been explored yet. The attack of a nitrene onto a diary sulde, the "nitrogen equivalent" of the thionation reaction. The diene character of ve-membered rings.
??????? ??????, добавлен 05.03.2013Characteristics: chemical properties, compounds, spectroscopy, isotopes. History, commercial production. Applications, biological role: maintaining body fluid volume in animals, maintaining electric potential in animal tissues. Dietary uses, precautions.
???????, добавлен 13.11.2009The development of selective oxidation of simply accessible dihydroxy-dypropoxycalix[4]arene to nitrocalixmonoquinone by mixture of 75 % nitric acid and glacial acetic acid. Synthone for design of optical sensors and redox-sensitive bio-active compounds.
??????, добавлен 11.02.2014The technology for the synthesis of two coumarin-chalcone hybrids by means of Kleisen-Schmidt condensation between 3-acetylcoumarin with benzaldehyde and 4-chlorobenzaldehyde, respectively. Method of identification and control of a chemical process.
??????, добавлен 15.01.2021Influence of synthesis conditions on ceria particles size. Anticorrosion properties of modified carbon nanotubes. Realization the synthesis in aqueous solution at room temperature that reduces the cost of the preparation procedure of nanosized ceria.
??????, добавлен 04.04.2014Rubidium as a chemical element and a soft, silvery-white metallic element of the alkali metal group. Characteristics, history, occurrence rubidium. Isotopes, uses and applications. Compounds, rubidium chloride. Precautions and biological effects.
???????, добавлен 13.11.2009- 69. A synthetic approach of d-glucose derivatives: spectral characterization and antimicrobial studies
Synthesis of new series of derivatives of methyl 4, 6-o-(4-methoxybenzylidene)-b-D-glucopyranoside direct acylation with a wide range of acylating agents. Spectral and elemental analysis data of antibacterial action of the synthesized compounds.
??????, добавлен 23.02.2016 Magnesium as a chemical element and a silvery-white, light-weight metal. Notable characteristics, applications. As the metal. Incendiary use, in magnesium compounds. History, sources, ores, sea water, electrolysis. Biological role, isotopes, precautions.
???????, добавлен 13.11.2009Alkylation of potassium 9-R1-10-R2-3-R-2-oxo-2?-[1,2,4]triazino[2,3-?]quinazolin-6-thiolates by N-cycloalkyl-(cycloalkylaryl-)-2-chloracetamides. Analizes of indicators of the antiviral activity of compounds 3.2 and 3.14 against influenza type A H3N2.
??????, добавлен 29.01.2016Isomeric aminobenzoic acid – an important chemical product of organic synthesis used in the production of synthetic dyes, medicinal and aromatic substances, wines, pesticides. Investigation the reaction of the oxidization of 2- and 3-aminotoluenes.
??????, добавлен 22.03.2016- 73. Ir spectroscopy and tg analysis investigations of functionalized go and go-containing divinyl rubber
Analysis of the results of a study of graphene oxide and divinely rubber containing graphene oxide, functioning-RO (Oh)2 slot groups as a result of a kill-chlorophosphorylation reaction under the action of PCl3 in the presence of oxygen. Synthesis of GO.
??????, добавлен 10.05.2018 A three compounds, p-aminobenzylden-a-naftylamine and its metal complexes have been prepared. Studies have shown that the investigated metal complexes are effective inhibitors of the oxidation of complex action. Antioxidant effect of synthesized metal.
??????, добавлен 23.02.2021Analysis of the method of synthesis of new materials with carboxylic acid groups, based on the template method, was developed. The efficiency of this methodology was demonstrated by powder x-ray diffraction, infrared spectroscopy and thermal analysis.
??????, добавлен 02.04.2014