Homogeneous catalyst of oxidating sodium diethyldithiocarbamate based on tetra-4-(4'-carboxyphenylsulphanium)-5-cobalt nitrophtalocyanine (ii)

FIELD: chemistry.

SUBSTANCE: invention relates to a homogeneous catalyst based on tetra-4-(4'-carboxyphenylsulphanium)-5-cobalt nitrophtalocyanine(II) of tetrasodium salt of formula .

EFFECT: invention allows to produce a compound having a high catalytic activity in the oxidation of sodium diethyldithiocarbamate.

4 dwg, 1 tbl, 2 ex

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: method includes reacting a palladium complex with L in an organic solvent medium at room temperature. The used diimine ligands L are: bis[N-(phenyl)imino]acenaphthene, bis[N-(2,6-dimethylphenyl)imino]acenaphthene, bis[N-(2,6-diisopropylphenyl)imino]acenaphthene, N,N-(ethanediilidene)bis(2,6-dimethylaniline), N,N-(ethanediilidene)bis(2,6-diisopropylaniline), N,N-(2,3-butanediilidine)bis(aniline), N,N-(1,2-diphenylethane-1,2-diilidine)bis(2,6-dimethylaniline), N,N-(1,2-diphenylethane-1,2-diilidine)bis(2,6-diisopropylaniline). The process is carried out in dichloromethane as the organic solvent.

EFFECT: invention enables to obtain cationic palladium complexes which can be used as components of catalyst systems for polymerising ethylene, propylene, α-olefins and cycloolefins, copolymerising ethylene with polar vinyl monomers and cycloolefins.

8 ex

FIELD: chemistry.

SUBSTANCE: invention relates to perfluorocarboxylate compounds of tetravalent platinum, characterised by stability in storage without air access. Compounds are obtained by reaction of hydroxo-compound of tetravalent platinum K2[Pt(OH)6] or freshly prepared platinum dioxide hydrate PtO2·4H2O with perfluorocarboxylic acid RfCOOH, where Rf=CF3, C2F5, at temperatures from 40 to 70°C for Rf=CF3 and from 70 to 90°C for Rf=C2F5 until homogeneous solution is obtained, with further removal of acid residues in vacuum at temperature not higher than 60°C. Obtained compounds satisfy formula K2[Pt(RfCOO)6] or Pt(RfCOO)4. Perfluorocarboxylate compounds of tetravalent platinum of general formula.

EFFECT: M2[Pt(RfCOO)6] (M=Li, K, Na, Rb, Cs, NMe4) are obtained by heating perfluorocarboxylate of tetravalent platinum Pt(RfCOO)4 or platinum dioxide hydrate PtO2·4H2O with stoichiometric quantity of salt M(RfCOO) in respective acid with further removal of its residues in vacuum at temperature not higher than 60°C.

EFFECT: obtained compounds can be used for synthesis of other platinum compounds, for obtaining metal coatings, in homogeneous and heterogeneous catalysis as catalysts and their precursors, as well as initial compounds for obtaining nanosized platinum particles and thereof-based intermetallides

1 tbl, 15 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of preparing a catalyst complex of formula , where R1, R2, R3 and R4 are independently selected from a group consisting of hydrogen, C1-C20alkyl, C2-C20alkoxy group, halogen and amino group, where if R1 or R3 is an amino group, the amino group is optionally substituted with one or more fragments which are alkyl, if R2 or R4 is an amino group, the amino group is optionally substituted with one or more fragments which are C1-C20alkyl. The method includes a step of reacting a ruthenium catalyst precursor with one or two bidentate ligands of the Schiff base class in a nonpolar solvent and in the presence of a weak base, where the bidentate ligands of the Schiff base class are independently in amount of 1.0-3.0 equivalents relative to the amount of the catalyst precursor (formulae of the precursors and ligands are given in claim 1 of the invention). The invention also discloses a catalyst complex, a supported catalyst for metathesis of olefins and use thereof in olefin metathesis reactions.

EFFECT: invention enables to obtain a catalyst having high activity after activation, monomer stability and a simple and cheap method.

11 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a ligand of metal complex. A ligand of metal complex having the following structure or wherein Z is CH2=; m=0 or 1, n=0 or 1; when m=0, X is HN, C1-C20-alkylimino or C6-C20-arylamino; when m=1, X is CH2; X is HN or C1-C20-alkylimino; is a single bond; when n=1, X1 is CH2 or carbonyl; Y1 is oxygen or carbonyl; R1 is hydrogen; R2 is C1-C20-alkyl or C6-C20-aryl; E is hydrogen, halogen, nitro, C1-C4-alkoxy, C1-C4-alkoxycarbonyl or C1-C8-alkylaminosulfonyl; E1 and E2 are each independently selected from the group consisting of H and halogen; E3 is hydrogen; E4 is hydrogen or C1-C4-alkyl; E5 and E6 are either hydrogen or halogen, C1-C4-alkyl or C1-C6-alkoxy; E7 is hydrogen or C1-C4-alkyl. A transition metal complex, a method of carrying out a metathesis reaction with olefin substrate, use of a transition metal complex for rubber depolymerisation and rubber hydrogenation.

EFFECT: transition metal complexes offering high activity and selectivity for ROMP and RCM reactions.

11 cl, 13 tbl, 118 ex

FIELD: chemistry.

SUBSTANCE: catalyst of dicyclopentadiene polymerisation in the form of a ruthenium complex represents [1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(2-((2-dimethylaminoethylmethylamino)methyl))benzylidene)ruthenium of formula (I) The catalyst is obtained by the interaction of a ruthenium triphenylphosphine complex with 1,1-diphenyl-2-propin-1-ol in tetrahydrofurane or dioxane at a temperature of the solvent boiling in an inert atmosphere, then with tricyclohexylphosphine at room temperature in an inert atmosphere the formed indenylidene complex of ruthenium is extracted. The latter is successively subjected to interaction with 1,3-bis-(2,4,6-trimethylphenyl)-2-tricloromethylimidazolidine and 2-vinylbenzylamine, the formed product is extracted and dried.

EFFECT: extension of technological abilities in the process of polymerisation, and improvement of rheological, mechanical and thermal indices of the obtained polycyclopentadiene.

2 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: catalyst of polymerisation has the general formula (I)

where a novel substituent is selected from the group of aminostyrenes. It ensures fundamentally novel properties of the catalyst. The catalyst is obtained by the interaction of a triphenylphosphine complex of ruthenium with 1,1-diphenyl-2-propin-1-ol in tetrahydrofuran or dioxane at a temperature of the solvent boiling in an inert atmosphere, and then with tricyclohexylphospine at room temperature in an inert atmosphere, the formed ruthenium indenylidenic complex is extracted. The latter is successively subjected to interaction with 1,3-bis-(2,4,6-trimethylphenyl)-2- tricloromethylimidazolidine and respective aminostyrene with the formation of a target product.

EFFECT: reduction of the catalyst consumption, reduction of the time before beginning of the polymerisation process and improvement of rheological, mechanical and thermal indices of the obtained polydicyclopentadiene, which ensures obtaining the product from polydicyclopentadiene with high consumer properties.

2 cl, 7 ex

FIELD: chemistry.

SUBSTANCE: method includes the dissolution of metallic palladium in concentrated nitric acid, evaporation of an obtained palladium nitrate solution. The palladium nitrate solution is evaporated at a temperature of (40-80)°C until palladium nitrate crystallisation starts, into the formed solution added is carboxylic acid in the form of a water-free or a water solution, in a liquid or crystalline state in an amount of (600-800)% of a molar amount of palladium in the initial palladium nitrate solution, or carboxylic acid anhydrite in an amount of (350-450)% of a molar amount of palladium in the initial palladium nitrate solution until crystallisation of polymer palladium carboxylate stops.

EFFECT: invention makes it possible to improve the method of obtaining polymer palladium carboxylates, increase the synthesis stability, and achieve a high output of the target product.

8 cl, 5 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: method includes dissolving palladium metal in concentrated nitric acid and evaporating the obtained solution. The palladium nitrate solution is evaporated at (40-80)°C until palladium nitrate begins to crystallise. The formed solution at (30-80)°C is mixed with trifluoroacetic acid in amount of (600-800)% of the molar amount of palladium in the starting palladium nitrate solution or trifluoroacetic acid anhydride in amount of (350-450)% of the molar amount of palladium in the starting palladium nitrate solution until the end of crystallisation of polymeric palladium trifluoroacetate. The method also includes filtering the formed compound and conversion thereof into the end product by adding acetonitrile at (10-30)°C with weight ratio of the compound to acetonitrile of 1:(0.5-2).

EFFECT: invention improves the method of producing palladium trifluoroacetate in a crystalline monophase state, improves synthesis stability and enables to achieve high output of the desired compound.

2 cl, 2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing palladium (II) beta-diketonates or beta-ketoiminates. The method involves reacting a beta-diketone with a palladium salt solution in an organic solvent, followed by cooling the end product and separation thereof from the solution. The beta-diketone or beta-ketoimine used is the compound R'C(O)CH2C(O)R or R'C(O)CH2C(NH)R, respectively, where R', R denote alkyl or perfluoroalkyl or an alkoxy group, containing 1-4 carbon atoms, an aryl containing 4-10 carbon atoms, in different combinations. The palladium salt used is palladium (II) chloride. The reaction is carried out in a solvent selected from nitriles or amides of organic acids, in which starting components are dissolved, and which is infinitely miscible with water, in the presence of an equivalent amount of sodium or potassium hydroxide, or sodium or potassium carbonate. The end product is precipitated from the solution with water.

EFFECT: invention enables to obtain an isomerically pure product with high output directly in a single-step synthesis process without using additional separation processes.

3 cl, 5 dwg, 6 ex

FIELD: chemistry.

SUBSTANCE: method involves reacting bis(acetylacetonato)palladium, 1,5-cyclooctadiene and boron trifluoride etherate BF3·OEt2, in a medium of benzene or toluene as an organic solvent.

EFFECT: invention increases efficiency of producing a palladium complex.

2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to mixed cobalt (II) salts of ketocarboxylic and mercaptocarboxylic acids of general formula (I):

where R=Alk, R'=H, Alk, NH2, NHCOCH3, m=0-3, R"=H, Alk, COOH, n=0-3, where Alk=alkyl C1-C3, or to such compounds as a cobalt (II) salt of mercaptoacetic acid and pyruvic acid, a cobalt (II) salt of mercaptoacetic acid and α-ketoglutaric acid, a cobalt (II) salt of N-acetyl-L-cysteine and pyruvic acid, a cobalt (II) salt of α-ketoglutaric acid and L-cysteine, a cobalt (II) salt of pyruvic acid and 2-mercaptopropionic acid or hydrates or solvates thereof. A method of producing salts of general formula (I) is also disclosed.

EFFECT: invention enables to obtain mixed cobalt (II) salts of ketocarboxylic and mercaptocarboxylic acids, having cyanide antidote activity.

7 cl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to novel redox pairs for the application in dye-sensitised solar cells DSSC. The redox pairs are formed by the general formula (bipyridine derivative)nMe(Ion)m, where the bipyridine derivative is where R2, R3 is any substituent from the group methyl, ethyl, propyl, butyl, pentyl, hexyl, Me is a metal from the group Cr, Mo, Nd, Ni, Pd, Pt, Ir, Co, Rh, Cu, W, Mn, Ta, Fe, Ru, Ion - a counterion, is any of the group ClO4-, Cl-, I-, BF4-, PF6-, CF3SO3-, n, m correspond to the metal ion valence. The novel redox pairs (version) and an electrolyte for the application on DSSC are also claimed.

EFFECT: novel redox pairs are applied in DSSC and possess the lowest redox-levels for increasing the open circuit voltage.

3 cl, 1 dwg, 1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of obtaining a finely dispersed liquid form of a phthalocyanine catalyst for demercaptanisation of oil and gas condensate, which includes successive precipitation, in an aqueous medium, of products of sulphonation of cobalt phthalocyanine or chlorine-substituted derivatives thereof and cobalt phthalocyanine adducts or chlorine-substituted derivatives thereof with sulphuric acid - "sulphates" to form a mixture of disulphonic acids of cobalt phthalocyanine or chlorine-substituted derivatives thereof and finely dispersed cobalt phthalocyanine particles and chlorine-substituted derivatives thereof. The next treatment of the aqueous paste of the obtained mixture with alkanolamines results in dissolution, in water, of disulphonic acids of cobalt phthalocyanine or chlorine-substituted derivatives thereof and partial adsorption on the surface of particles of cobalt phthalocyanine or chlorine-substituted derivatives thereof to form a stable finely dispersed liquid form of the catalyst.

EFFECT: method of producing a catalyst for demercaptanisation of oil and gas condensate in a stable liquid form, with high catalytic activity, which avoids the need for preparation thereof by the consumer, improves labour conditions for the producer and the consumer of the product.

1 tbl, 4 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a complex compound of a magnetisable metal and salen. The complex compound is presented by formula (I) , wherein M represents Fe, Cr, Mn, Co, Ni, Mo, Ru, Rh, Pd, W, Re, Os, Ir or Pt, and a-f and Y represents hydrogen, or -NHR3-, -NHCOR3 respectively provided a-f and Y are not hydrogen simultaneously, wherein -R3 represents a pharmaceutical molecule with R3 provides the transport of a charge equivalent to max. 0.5 electron (e); or by formula (II) , wherein M represents Fe, Y, a, c, d, f, g, i, j, 1 represent hydrogen respectively; b and k represent -NH2, h and e represent -NHR3, wherein -R3 represents taxol (paclitaxel), or M represents Fe, Y, a, c, d, f, g, i, j, 1 represent hydrogen respectively; b, e, h and k represent -NHR3-, wherein -R3 represent gemfibrozil. There are also presented a local anaesthetic, an antineoplastic agent, a complex metal molecule, an intermediate compound, methods for preparing the magnetic substance, methods for preparing the magnetisable compound. The present invention enables preparing the therapeutic agent using the magnetic properties of the complex of metal and salen for the purpose of magnetising the specific therapeutic agent by chemical binding of the therapeutic agent to the complex of metal and salen so that to deliver the therapeutic agent to an affected area.

EFFECT: preparing the complex compound of the magnetisable metal and salen.

16 cl, 20 dwg, 10 tbl, 13 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a method for preparing compendial tetra(1-vinylimidazole)cobalt dichloride (Cobazol). The method involves a reaction of 1-vinylimidazole and cobalt dichloride in the molar relation of 1-vinylimidazole: CoCl2·6H2O = 4:1 at room temperature. The process is carried out in an aqueous medium at the concentration of 1-vinylimidazole 20-45%. A cobalt dichloride salt is introduced in the form of a solid crystalline hydrate added to a ligand solution in portions. The reaction is conducted for 3-8 hours. The end product is purified by water stripping in vacuum and then air elimination.

EFFECT: invention enables considerably reducing production costs, providing higher production and ecological safety with preserving higher yield of the compendial preparation Cobazol.

4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a cobalt complex with a modified phthalocyanine ligand which is covalently bonded with silica gel and has the following general formula: , where: R=Cl, NHAlk, NAlk2, n = 5-7, M = Co. Also disclosed is a method for valence isomerisation of quadricyclane in norbornadiene in the presence of the complex.

EFFECT: invention enables to obtain a cobalt complex with a modified phthalocyanine ligand, which can be used as a heterogeneous catalyst having high activity and high stability.

3 cl, 1 tbl, 29 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to medicine and chemical-pharmaceutical industry, namely industrial chemistry, and concerns a method for preparing octa-4,5-carboxyphthalocyanine sodium salt (a substance of the preparation teraphthal).

EFFECT: method provides preparing high-purity octa-4,5-carboxyphthalocyanine sodium salt free from residual low-molecular impurities, oligomer products and residual chlorides, reducing the labour content of production, and increasing yield.

1 ex

FIELD: chemistry.

SUBSTANCE: invention discloses an alkylation composition which is characterised by that it contains a cobalt complex, as well as a method for detoxification of a harmful compound, characterised by that a harmful compound containing at least one element selected from a group comprising arsenic, antimony and selenium is detoxified through alkylation in the presence of the disclosed composition.

EFFECT: obtaining novel compounds.

27 cl, 10 ex, 11 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to stable complexes consisting of metal oxides - iron, cobalt or alloys thereof in form of nanoparticles and bifunctional compounds, where the bifunctional compounds are selected from thiols, carboxylic acids, hydroxamic acids, phosphoric esters or salts thereof, having an aliphatic chain containing a second functional group in the terminal position ω, which can be used in certain novel hydrophilic plates and fibres, as well as a method of producing complexes. The method involves reaction of dispersion of said nanoparticles in an organic solvent with a suitable binder. The mixture is stirred for several hours at low temperature and the obtained product is then cooled and separated by centrifuging, and can then be cleaned via repeated dispersion in a suitable solvent and repeated deposition.

EFFECT: novel complexes with improved solubility in water-alcohol medium are obtained.

13 cl, 3 dwg, 9 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing bis(3,6-di(tert-butyl)benzosemiquinolates-1,2) of cobalt (II) or manganese (II) or nickel (II), of general formula: M(SQ)2 , where: SQ is 3,6-di(tert-butyl)benzoquinolate-1,2, and M = Mn(II) or Co(II) or Ni(II). The method is characterised by that a disubstituted salt of an alkali metal salt and 3,6-di(tert-butyl) pyrocatechol-1,2 is obtained, followed by reaction thereof with 3,6-di(tert-butyl)benzoquinoline-1,2. The formed 3,6-di(tert-butyl)benzosemiquinolate-1,2 of the alkali metal reacts with a Co(II) or Mn(II) or Ni(II) halide in an inert atmosphere in tetrahydrofuran.

EFFECT: simple synthesis of bis-semiquinolates of metals.

4 cl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a novel chemical substance - 4,10-bis((±)-5-benzoyl-2,3-dihydro-1H-pyrrolo[1,2-a]pyrrole-1-carbonyl)-2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazatetracyclo[5,5,0,03,11,05,9]dodecane The invention also relates to a method of its obtaining, which consists in the acylation of 2,6,8,12-tetraacetyl-2,4,6,8,10,12- hexaazatetracyclo [5,5,0,03,11,05,9]dodecane by chloranhydride 5-benzoyl-2,3-dihydro-1H-pyrrolo[1,2-a]pyrrole-1-carboxylic acid.

EFFECT: novel compound, which has analgetic activity, is obtained.

2 cl, 1 tbl, 2 ex

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