THREE-COMPONENT REACTION
Novel and Efficient Microwave-Assisted Three Component Reaction for the Synthesis Ofoxazine Derivatives
... assisted three- component reaction from 1-naphthol, various anilines and formalin using montmorillonite as the ...shorter reaction times, and easy work-up and non – chromatographic method has ...
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Development of an organo- and enzyme-catalysed one-pot, sequential three-component reaction
... a three-component reaction in which two carboncarbon bond-forming steps are catalysed using the specific combination of an organocatalyst and an ...
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A facile and efficient One pot Three Component Reaction (Kabachinik Fields Reaction) for the Synthesis of Novel α Aminophosphonates by 1, 4 Dimethylpiperazine as a new catalyst
... one-pot, three-component reaction of amines 1, diethyl/dibutylphosphites 2, various aldehydes 3a-n and 1, 4-dimethylpiperazine as a new catalyst for the synthesis of novel α -aminophosphonates 4a-n ...
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An Efficient Synthesis of Pyrido[2,3 d]pyrimidine Derivatives via One Pot Three Component Reaction in Aqueous Media
... also reaction was checked in solvent- free conditions at 120˚C ...the reaction solvent. More over in order to op- timize the other reaction conditions the different powers and temperatures for the ...
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Ionic liquid mediated a facile and convenient synthesis of new selanyl tetrazoles via one pot three component reaction
... under similar conditions, a wide range of phenacyl bromides containing electron-withdrawing as well as electron- donating groups underwent condensation in short reaction times with good isolated yields. The ...
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Synthesis of 1 amidoalkyl 2 naphthols by a three component reaction catalyzed by methane sulphonic acid
... less reaction timing, high yielding efficient process for condensation reaction, of various aromatic aldehydes, 2-naphthols, and amide or urea in the presence of methane sulphonic acid as a catalyst in ...
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High Efficient of the Intermolecular Radical Reactions through three-Component Carbo-Oximation Process using new ready available Sulfonyl oxime.
... involvinga three-component radical process wasdeveloped under mild conditions in a single potstarting from readily available ehtyliodoacetate, different olefins and new sulfonyl oxime ...This ...
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Novel procedure for preparation of Hantzsch 1, 4- dihydropyridines using PEG-400 as a reaction medium and under catalyst-free condition
... the three- component reaction of various aldehydes, ethyl acetoacetate, and ammonium acetate in ...The reaction was carried out at 110°С and the products were obtained in good to high ...
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Vol 2, No 11 (2013)
... one-pot three-component reaction of benzaldehyde, barbituric acid and meldrum's acid for the synthesis of 5-phenyl-5,6-dihydro-1H-pyrano[2,3-d]pyrimidine-2,4,7(3H)-trione derivatives using cerric ...
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Copper nanoparticle catalyzed regioselective cycloaddition of terminal acetylenes to sodium azide in the presence of O-tosyl fluorocarbohydrate derivatives: assembly of novel enantiopure fluoromonosaccharides with 1,2,3-triazole and 4-phenyl-oxazolidin-2-one subunits
... Taking into account the great potential of triazoles as valuable building blocks for drug de- sign, the substitution of hydrogen for fluorine in organic compounds is widely used to modify the physical, chemical and ...
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A Novel protocol for synthesis of Hantzsch 1, 4- dihydropyridines using PEG-400 as a reaction medium and under catalyst-free condition
... the three-component reaction of various aldehydes, ethyl acetoacetate, and ammonium acetate in PEG- ...The reaction was carried out at 110°С and the products were obtained in good to high ...
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Vol 4, No 7-9 (2015)
... This study is concerned with the synthesis and characterization of derivatives of 1H-1,2-dithiol-1-thiones and thioamides having the hydroquinoline moiety. ...
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Nano-colloidal silica-tethered polyhedral oligomeric silsesquioxanes with eight branches of 3-aminopropyltriethoxysilane as high performance catalyst for the preparation of furan-2(5H)-ones
... a three-component reaction of aniline, dialkyl acetylenedicarboxylate, and aromatic aldehydes using nano-colloidal silica- tethered polyhedral oligomeric silsesquioxanes with eight branches of ...
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Synthesis of benzo[f]chromeno[3,4-b]quinoline-6-ones and chromeno[3,4-b]quinoline-6,11-diones via one-pot three-component tandem Knoevenagel–Michael reaction catalyzed by n-Tetrabutylammonium tribromide
... one-pot three-component reaction for synthesising benzo[f]chromeno[3,4- b]quinoline-6-one derivatives through tandem Knoevenagel-Michael reaction involving substituted aromatic aldehydes (1), ...
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Zirconium Oxide Nanoparticles as an Efficient Catalyst for Three-Component Synthesis of Pyrazolo[1,2-A][1,2,4]Triazole-1,3-Diones Derivatives
... Multi-component reactions have been attracting much interest from synthetic chemists because they provide simple one-pot routs for the synthesis of complex molecules from simple and easily available starting ...
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An Efficient Synthesis of Functionalized 3-(α-amidobenzyl)-4-hydroxycoumarin Derivatives by ZnO Nanoparticles Promoted Condensation Reaction Between Aromatic Aldehyde, 4-hydroxycoumarin, and Amides
... pot, three component coupling reaction of aromatic aldehyde, 4- hydroxycoumarin, and amides has been developed using ZnO nanoparticles (NPs) as the ...short reaction time and an ...
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RECENT ADVANCES IN THE SYNTHESIS OF PHARMACOLOGICALLY BENIGN COUMARIN AND INDOLE HETERO STRUCTURED DERIVATIVES: A REVIEW
... the reaction is detrimental for palladium-catalyzed hetero- annulations 42 After optimization conditions, three equivalents of sodium carbonate proved to be the best base and gives 84 % excellent yield ...
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Design and Synthesis of Three Naphtol Derivatives using the Three Component System
... A solution of β -naphtol (100 mg, 0.69 mmol), benzaldehyde (105 µl, 1.03mmol), ethylenediamine (92 µl, 1.38 mmol) in 10 ml of ethanol wasstirring for 72 h to room temperature. The reaction mixture was evaporatedto ...
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β-Cyclodextrain sulfonic acid as a biodegradable solid catalyst in benzoxanthenes synthesis
... All commercially available chemicals were purchased from Fluka and Merck companies and use without furtherpurification. IR spectra were recorded on a BOMEM MB-series 1998 FT- IR spectrophotometer. Reaction ...
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Vol 8, No 5 (2019)
... condensation reaction of isatin, activated methylene and a 1,3-dicarbonyl ...This reaction can be achieved using different catalysts and conditions such as SnCl 4, 11 triethylamine, 12 basic alumina under ...
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