The Synthesis of Heterocycles Using Cascade Chemistry
Advances in heterocyclic chemistry. Molecular cascade and the formation of heterocyclic compounds and their impact on cost and waste reduction in the use of natural resources for production, the impact on the environment, energy and resource conservation.
Подобные документы
Benzisothiazolium Salts. Heterocyclic Annulated Isothiazolium Salts. Structure. X-ray Diffraction. Molecular Spectra. Analytical methods. Reactivity, general survey. Oxidation to Sultims and Sultams. Ring Transformation in Other Heterocyclic Compounds.
статья, добавлен 05.03.2013Critical 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.
учебное пособие, добавлен 05.03.2013Synthesis and reactions of heterocyclic compounds in chemistry. Three- and four-membered heterocycles: heterocycles with one heteroatom (oxiranes, thiiranes, aziridines). Five-membered heterocycles: heterocycles with one, two, three and four heteroatom.
статья, добавлен 05.03.2013Analysis, synthesis and properties of six isomeric heterocyclic systems containing two fused rings of pyridine with different relative positions of the atoms of nitrogen - naphthyridines. Physicochemical properties and reactivity of naphthyridines.
дипломная работа, добавлен 05.03.2013Applications heterocyclic compounds; approaches to synthesis. Familiarization with effective conversion of organic compounds into valuable fluorinated products. The use of fluorinated triazoles for the protection of metals and alloys from corrosion.
научная работа, добавлен 05.03.2013Advances in the organometallic chemistry of heterocyclic ligands. Unique photochemical and electrochemical properties organomanganese and organorhenium complexes of polypyridine ligands, their ability to form molecular assemblies and nanocrystallites.
статья, добавлен 05.03.2013The applications of leuco-dyes, of spiro compounds and tetrazolium salts. The transformation of the molecules in thermal and photo-imaging systems. Leuco compounds which are not formed by reduction of the parent dye. The chemistry of the phthalides.
книга, добавлен 05.03.2013The method of synthesis of fluorinated heterocycles. The use of mono- and 1,3-dicarbonyl substrates and their nitrogen-containing analogues. Biological activity, physical and chemical properties of heterocyclic compounds with perfluoroalkyl groups.
научная работа, добавлен 05.03.2013History of the nucleophilic substitution of hydrogen in aromatic compounds, obtaining picric acid. Survey of SNH Substitution. Heterocyclizations Based on SNH Reactions. Intramolecular One-Step SNH Cyclizations; cascade Sequences Based on SNH Reactions.
научная работа, добавлен 05.03.2013Using phosphoric acid and phosphor pent oxide as new catalyst for preparing of derivatives of benzoxazole. Use of benzoaxol ring in medicinal chemistry. Synthesis of 1,3-(Benzene-1,3-diyl) bis(benzoxazole). Synthesis of 3-(2-Hydroxynaphthol) benzoxazole.
статья, добавлен 21.01.2021Concerning the separation, identification, and determination of the relative amounts of the components making up a sample. The relationship between analytical chemistry and the other sciences. Classification of modern analytical methods in chemistry.
презентация, добавлен 29.04.2015Reactivity and Annulation of Another Ring to an Isoxazole Ring. Reactivity at the Ring Atoms. Reactivity of the Substituents. Syntheses of Condensed Heterocyclic Systems from Aminoisoxazoles. Ring Openings and Rearrangements. Synthesis of Aminoisoxazoles.
статья, добавлен 05.03.2013Historical Developments; the Revival of Troger’s Bases, the Synthesis and Mechanism of Formation. Multiple TB Systems, reactivity. Physicochemical properties, molecular and Crystal Structure; Nuclear Magnetic Resonance Spectra; uses and applications.
научная работа, добавлен 05.03.2013General properties of organometallic complexes. Metal alkyls and hydrides. Nucleophilic and electrophilic addition. Physical methods in organometallic chemistry. Insertion and Elimination. Homogeneous catalysis. Applications to organic synthesis.
книга, добавлен 05.03.2013Properties, combustion, electron energy levels. Elemental molecular forms. Covalent, organic compounds. Hydrides, protons, acids, isotopes. Discovery and use. Role in quantum theory. Natural occurrence, production: laboratory, industrial, thermochemical.
реферат, добавлен 13.11.2009Study matter and change and the types of systems. Studying the molecules of life by organic chemistry. Identification and quantification of materials in a mixture in analytical chemistry. Chemical principles underlying basic biological systems.
эссе, добавлен 22.11.2015Thiophene derivatives, cyclopropenethiones, dithiynes, carbon disulfide in the synthesis of thienothiophenes and their analogues. Reactivity and chemical transformations. Molecular structures and physical properties fields of application thienothiophenes.
дипломная работа, добавлен 05.03.2013Сomparative analysis the chemistry of technetium and rhenium сarbonyl perchlorates [M(ClO4)(CO)5]. The descriptions of their molecular structure, physical properties, types of materials, methods and procedures for their synthesis and reactivity.
статья, добавлен 30.01.2014Combination of methods quantum chemistry. Geometrical and electronic structure of clinoptilolite clusters modified by zinc and calcium. Redistribution of electronic density on the oxygen atoms of clusters during formation of bonds with zinc and calcium.
статья, добавлен 23.02.2016Some aspects of sugar-derived heterocycles and their precursors which are utilized as the inhibitors against glycogen phosphorylases and are responsible for the release of mono-glucose from poly-glucose. The quantitative structure-activity relationship.
научная работа, добавлен 05.03.2013The development of rape-cake extract as eco-friendly volatile corrosion inhibitors. Analysis of volatiles by GC-MS. Theoretical study of molecular spatial structure, causes of the shortage of the energy and density of the extract, its key compounds.
статья, добавлен 23.02.2016Reductive opening of heterocycles as a source of functionalized organolithium compounds. Methods for homologation of heterocycles. Double lithiation of thianthrene. Phthalan: a versatile starting material. Homologation of six-membered heterocycles.
статья, добавлен 05.03.2013Preparative and research methods of biochemistry, molecular biology, and biotechnology. Application of the affinity of biological molecules to complementary structures. Consideration of using scheme for activation cascade of the blood clotting system.
статья, добавлен 15.04.2024Substituent tautomerism of six-membered ring heterocycles. Compounds with one, two or more potentially tautomeric functional group. The prototropic tautomerism of hydroxypyridine is a prototype for oxo-hydroxy tautomerization processes in heterocycles.
статья, добавлен 05.03.2013MPWB1K/6-31+G(d) and MPWB1K/tzvp theoretical models were found to provide reasonable accuracy of the prediction of ionization potentials for mono- and polycyclic azacompounds. The root mean square errors of the methods are 0.19 and 0.20, respectively.
статья, добавлен 30.10.2016