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Article
Pd-Complexes with Azanediylbis(1,2-azolyl)- and Bis(1,2-azolyl)carboxamide Ligands for Catalysis of Cross-Coupling Reactions in Aqueous Media
5-Arylisoxazolyl- and 4,5-dichloroisothiazolyl-3-carboxamides were synthesized based on trichlorethylene and its dimer. The prepared carboxamides were used for the synthesis of azanediylbisisoxazolyl(isothiazo...
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Article
Reusable Pd-Polymetallic Catalysts Based on Magnetic Ferrites for Suzuki Reaction in an Ionic Liquid
Based on magnetic ferrites of iron (magnetite), cobalt, and nickel, modified with 3-aminopropyltriethoxysilane (APTES), Pd–Fe–Co–Ni/MFe2O4@Si–NH2@Pd (M = Fe, Co, Ni) hybrid materials with a protective palladium c...
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Article
Magnetically Reusable Polymetallic Pd-Catalyst for Sonogashira Reaction in Ionic Liquid
The Pd–Fe–Co–Ni/Fe3O4@Si–NH2 and Pd–Fe–Co–Ni/Fe3O4@Si–NH2@Pd hybrid materials have been synthesized based on magnetite modified with 3-aminopropyltriethoxysilane (APTES). Due to the synergistic effect, new magnet...
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Article
Desulfurization of a Low-Pressure Gas: Technology and Equipment for Oil Recovery
Technology and equipment are developed for purifying low-pressure gas flows from hydrogen sulfide and mercaptan contaminants. The efficiency of the catalytic desulphurization up to a residual content of sulfur...
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Article
Magnetically Separated Reusable Palladium Catalysts Based on Raney Nickel for the Sonogashira Reaction in Aqueous Media
Hybrid materials are developed based on palladium- and copper-doped Raney nickel (Ra–Ni) and shown to be highly efficient catalysts for the Sonogashira reaction in aqueous media free of organic solvents. The r...
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Article
Synthesis of 4-Acetyl- and 4-Benzoylpyridine Derivatives with 1,2-Azole Fragments
A method for the synthesis of 5-arylisoxazole- and 4,5-dichloroisothiazole-3-carboxylic acids derivatives based on 4-acetyl- and 4-benzoylpyridine has been developed. Esters and amides were prepared by acylati...
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Article
Open AccessReusable Proline-Containing Bimetallic Pd–Ni(Co, Cu, Fe)–Pro/Al2O3 Catalysts for Suzuki Reaction in Water
Bimetallic proline-containing composites Pd–Ni(Co, Cu, Fe)–Pro/Al2O3, due to the synergistic effect, exhibit high catalytic activity in the Suzuki reaction in aqueous media, which makes it possible to reduce the ...
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Article
Chitosan-Based Magnetic Polymetallic Pd-Catalysts for Heck Reaction in Aqueous Media
A mechanochemical method was developed for the synthesis of ferromagnetic Pd–Fe–Co–Ni composites based on the natural biopolymer chitosan, which are highly efficient catalysts for the Heck reaction in aqueous ...
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Article
Synthesis of Bisacridine Derivatives with Pyridine and 1,2-Azole Fragments
A convenient one-step method for the synthesis of new bisacridine derivatives, containing fragments of 5-arylisoxazoles, 4,5-dichloroisothiazole, as well as isonicotinic acid residues covalently attached by es...
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Article
Reusable, magnetic Raney nickel based palladium catalysts for the Heck coupling in aqueous media
Hybrid materials based on Pd- and Cu-doped Raney nickel appeared to be highly efficient catalysts for the Heck reaction in aqueous media in the absence of organic cosolvents. The catalysts can be easily remove...
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Article
Methylamine Derivatives with 1,2-Azole Fragments: Synthesis, Palladium Complexes, Catalysis of the Suzuki Reaction
New methylamine derivatives with 1,2-azole fragments (phenylisoxazole, p-tolylisoxazole, 2,5-dimethylphenylisoxazole and 4,5-dichloroisothiazole) and their palladium complexes were synthesized. It was shown that ...
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Article
Polymetallic magnetic palladium catalysts for the Suzuki reaction in aqueous media
A mechanochemical method for the synthesis of Pd-Fe-Co-Ni ferromagnetic composites was developed. The composites are highly efficient catalysts for the Suzuki reaction in aqueous media. They can be easily remo...
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Article
Pyridine Derivatives of Acridine and Quinoline
A convenient one-pot approach was proposed for the synthesis of new derivatives of 8,9,10,12tetrahydrobenzo[a]acridin-11(7H)-one and 10,12-dihydrobenzo[f]pyrimido[4,5-b]quinoline-9,11(7H,8H)-dione containing resi...
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Article
Functional Derivatives of 4-Formyl-2-methoxyphenyl Pyridine-4-carboxylate
Acylation of vanillin with isonicotinoyl chloride gave 4-formyl-2-methoxyphenyl pyridine-4-carboxylate which was converted into a number of functional derivatives, including those containing isoxazole and isot...
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Article
Synthesis of functional derivatives of isothiazole and isoxazole basing on (5-arylizoxazol-3-yl)- and (4,5-dichloroisothiazol-3-yl)arylmethanol
From (4,5-dichloroisothiazol-3-yl)phenylmethanol by Ritter reaction a substituted acetamide was synthesized that at hydrolysis with HCl afforded (4,5-dichloroisothiazol-3-yl)phenylmethylamine hydrochloride. By...
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Article
Functionalized isoxazole and isothiazole ligands: design, synthesis, palladium complexes, homogeneous and heterogeneous catalysis in aqueous media
Homogenous and heterogeneous palladium catalysts with functionalized izoxazole and isothiazole ligands were developed for the cross-coupling reactions. The catalysts possessed high activity and were suitable f...
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Article
Functionally substituted isoxazoles and isothiazoles: Synthesis, palladium(II) complexes and their catalytic activity
Functionally substituted 5-(p-tolyl)isoxazoles and 4,5-dichloroisothiazoles, whose molecules contain azomethine, amino, carboxyl, and ester moieties in various combinations in the aromatic ring in the position 3 ...
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Article
Synthesis of functional isoxazole derivatives proceeding from (5-arylisoxazol-3-yl)chloromethanes
Reaction of 3-chloromethyl-5-phenyl(p-tolyl)isoxazoles with substituted phenols under the conditions of Williamson reaction afforded the corresponding 3-aryloxymethyl-5-phenyl(p-tolyl)isoxazoles. Treating the lat...
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Article
5-(Naphth-1-yl)- and 5-[(1,1′-biphenyl)-4-yl]isoxazole-3-carbaldehyde oximes: Synthesis, complexes with palladium, and application in catalysis
1-(Naphth-1-yl)- and 1-[(1,1′-biphenyl)-4-yl-3,4,4-trichloro-3-buten-1-ones were synthesized by acylation of naphthalene and biphenyl with 3,4,4-trichloro-3-butenoyl chloride. Further reaction with hydroxylami...
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Article
An Effective Activation of Palladium Phosphine Complexes in Aqueous Phase Reactions of Hetero-Aromatic Boronic Acids with Aryl Halides
We have developed a simple and effective method for the activation of palladium phosphine complexes in the Suzuki reaction (TON up to 9800, TOF up to 58800 h-1) by selecting an aqueous reaction medium instead of ...
