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Class 205/435 - -COO- group containing


Subclass of Class 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
Definition: Subject matter wherein the nitrogen containing compound
No. of patents: 39
Last issue date: 01/31/2006


NumberTitleIssue Date
6992203Metal complexes produced by Maillard Reaction products
A method is disclosed for the formation of metal chelates which are able to remain stable in high alkaline environments when compared to metal chelates produced from a reaction with amino acids. The method involves the reaction of sugars, amino groups, and metal com...
01/31/2006
6808616Process for the preparation of 5-aminosalicyclic acid
The present invention relates to a new process for the electrochemical preparation of p-aminophenols, especially 5-aminosalicylic acid. The process can be performed at a low temperature of below 50° C. ...
10/26/2004
6663764Process for the preparation of glycine derivatives and use thereof
Process for the preparation of glycine derivatives, which comprises electrochemically oxidizing ଲ-hydroxyethylammonium compounds to give the corresponding acids....
12/16/2003
6468433Method for disinfecting liquids and gases and devices for use thereof
A method for disinfecting liquids and gases includes the steps of distributing at least one optical fiber in the region containing the liquids or gases to be disinfected; aligning at least one radiation unit having a high intensity source of light into sa...
10/22/2002
6334944Process for producing an amino acid-N,N-diacetic acid and its salts
An amino acid-N,N-diacetic acid (AADA) or its salt with an equivalent or less of an alkali metal is produced by reducing, through electrodialysis, alkali metal ions from an aqueous solution of the alkali metal salt of an AADA. By this configuration, an AA...
01/01/2002
6315884Method for producing phthalides
A process for preparing phthalides by I. reducing phthalic acid or phthalic acid derivatives, where the carboxyl groups may be replaced by units which can be derived from the carboxyl groups by a condensation reaction and where one or more of the hydrogens ...
11/13/2001
6294069Method for preparing 2-aryl or 2-heterocyclyl chiral propionic acids and their esters
A process for the preparation of chiral 2-aryl or 2-heterocyclyl-propionic acids of the formula ##STR1## wherein the substituents are as defined in the specification....
09/25/2001
6193681Septicemia prevention and treatment system
A method and apparatus for preventing and treating septicemia in patient blood. The extracorporeal system includes an anti-microbial device to kill at least 99% of bloodborne microorganisms, a hemoconcentrator/filtration unit to remove approximately 90% o...
02/27/2001
6159352Process for the electrochemical synthesis of N-acetylcysteine from cystine
The process comprises: (A) obtainment of N-acetyl-cysteine from L-cystine, by means of the following steps: (i) acetylation of L-cystine to produce N-acetyl-cystine; (ii) electroreduction and desalination by electrodialysis of the N-acetyl-cystine thus produce...
12/12/2000
5820742Electrodeposition coating method and electrodeposition coating agent
An electrodeposition coating method characterized in that in electrodeposition coating of a water soluble composition of a polyimide precursor which is prepared by using 1,2,3,4-butanetetracarboxylic acid or its imide-forming derivative and a diamine and ...
10/13/1998
5660711Process for the preparation of intermediates useful in the synthesis of cephalosporins
A process is described for preparing 3-exomethylene cephalosporanic acid derivatives for use in the synthesis of cephalosporin antibiotics such as ceftibuten. The process comprises electrochemical reduction of a compound of the formula (IV) ##STR1## ...
08/26/1997
5643438Process for the preparation of substituted diamino-dicarboxylic acid derivatives
The invention relates to a new process for the preparation of substituted diaminodicarboxylic acid derivatives of the formula ##STR1## in a high yield by a modified Kolbe synthesis....
07/01/1997
5627302Asymmetrically substituted diaminodicarboxylic acid derivatives
The invention relates to novel asymmetrically substituted diaminodicarboxylic acid derivatives of the formula ##STR1##...
05/06/1997
5364851Conformationally restricted biologically active peptides, methods for their production and uses thereof
Electrochemical methods, preferably the Kolbe coupling reaction, are utilized to create intramolecularly bridged peptides, segments or peptide isosteres which are conformationally restricted and preferably, biologically active. Preferably, the peptide ana...
11/15/1994
5188707Process for chemically hardening wood
A method of hardening wood using a pulping agent for the chemical separation of lignin from cellulose in the wood without damage to either component. The pulping agent comprises the reaction product of (a) a compound produced by electrolytic oxidation of ...
02/23/1993
4954227Preparation of bidentate ligands
A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each AR is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl; the x bonds a...
09/04/1990
4927508Alkyl 2-fluoro-1-methoxyethylcarbamates
Alkyl esters of 2-fluoro-1-methoxyethylcarbamic acid, which are useful intermediates in the preparation of compounds, such as 4-amino-5-fluoropentanoic acid, are prepared by the electrochemical anodic oxidation of esters of 2-fluoroethylcarbamic acid in t...
05/22/1990
4830716Preparation of pharmaceutical grade amino acid chelates
Pharmaceutical grade amino acid chelates, free of interfering anions, are made by reacting an amino acid ligand with a metal member selected from the group consisting of elemental metals, metal oxides, metal hydroxides and metal carbonates in an aqueous e...
05/16/1989
4800012Electrochemical process for the replacement of halogen atoms in an organic compound
The existing processes for the preparation of halogenoacrylic acids and deuterated derivatives thereof have to be carried out using chemicals which are in some cases very toxic or very expensive. Electrochemical reduction, however, makes it possible to elimina...
01/24/1989
4764263Electrochemical synthesis of substituted aromatic amines in basic media
Substituted amino aromatic compounds such as 3-amino-4-hydroxybenzoic acid are prepared by electrolytically reducing the corresponding nitro aromatic compound in a basic medium at temperatures below 60° C. and current densities greater than 50 milliamps ...
08/16/1988
4759832Preparation of biscarbamates and novel biscarbamates
Biscarbamates, including novel one, of the general formula ##STR1## where R is alkyl of 1 to 8 carbon atoms and X is a hydrocarbon radical of 2 to 60 carbon atoms in which one or more carbon atoms may be replaced by hetero atoms and which may contain...
07/26/1988
4718994Method for preparing hydroxy compounds of aromatic and heteroaromatic series
A method for perparing hydroxy compounds of the aromatic and heteroaromatic series of the general formula: ##STR1## wherein when R1 .dbd.--COOH, --CH2 CH(NH2)COOH then R2 .dbd.--OH, --H, --COOH; R3
01/12/1988
4670112Process for preparing p-amino phenols by electrolysis
p-Amino phenols of the formula ##STR1## wherein R1 nd R2 are independently hydrogen, optionally substituted alkyl, halogen, COOH, SO3 H or NO2, are produced by electrolytic reduction of p-phenylazophenols o...
06/02/1987
4661217Preparation of carbamic acid esters
Carbamic acid esters (I) wherein R1 is H, alkyl, cycloalkyl or alkylaryl and R2 is alkyl, are prepared by electro-oxidation of a formamide (II) in the presence of an alcohol R2 OH and of an ionic halide....
04/28/1987
4599152Pure amino acid chelates
Pure amino acid chelates and a method of their production are disclosed. The amino acid chelates are free of contaminating inorganic anions. The chelate consists of a metal ion comprising iron, zinc, manganese, magnesium, copper, calcium and mixtures ther...
07/08/1986
4589963Process for the conversion of salts of carboxylic acid to their corresponding free acids
There is described a process for converting salts of monobasic amino acids to their free acids by treatment under electrolytic methods wherein electrical power requirements are reduced, contamination of the electrolytes with undesired products of the elec...
05/20/1986
4566956Electrochemical conversion of soluble salts of insoluble acids to their acid form
A process is disclosed for converting water soluble salts of insoluble organic acids to their insoluble acid form employing electrochemical techniques....
01/28/1986
4529488Process for depositing salts
A process for depositing a salt by applying an electric current or voltage to at least one pair of electrodes placed in a supersaturated aqueous solution or supercooled molten liquid of an inorganic or organic salt, whereby the supersaturation or supercoo...
07/16/1985
4505788Production of p-aminobenzoylglutamic acid by electrochemical reduction
Disclosed is a method of producing p-aminobenzoylglutamic acid which comprises electrochemically reducing p-nitrobenzoylglutamic acid and/or p-hydroxyaminobenzoylglutamic acid using a cathode of a palladium metal or palladium alloy in an aqueous solution ...
03/19/1985
4496440Oxidation of hydrophobic --CH2 OH compounds at oxidized nickel anodes
Mono- or dimethylol compounds having water solubilities of 3 grams or less per 100 grams of water are electrochemically oxidized to the corresponding mono- or dicarboxylic acids at activated nickel oxide anodes. The methylol compounds are adducts of 1,2-a...
01/29/1985
4490221Process for preparing iodothyronines and iodothyroacetic acids by electrochemical reduction at controlled potential
The invention relates to a process for preparing tri-iodo-, di-iodo- and mono-iodothyronines and tri-iodo, di-iodo and mono-iodothyroacetic acids, respectively from thyronine, triiodo or diiodothyro- nine and tetra-, tri- or diiodothyroacetic acid, by ele...
12/25/1984
4454012Process for the preparation of methionine
Crystalline methionine is prepared from an alkali metal methioninate by continuously electrolyzing an aqueous solution of the said alkali metal methioninate and a support electrolyte in an intermediate compartment of a cell comprising an anode compartment...
06/12/1984
4430262Preparation of isocyanates and/or derivatives thereof
Isocyanates and derivatives thereof are prepared by oxidative conversion of compounds having at least one group ##STR1## wherein X represents OY or ##STR2## wherein Y is H, a metal ion or group NR3 R4 R5 R6
02/07/1984
4304642Electrochemical additions to alkenes
Organic compounds having vicinal functional groups, such as amidothioethers and esterthioethers, are prepared by electrochemically oxidizing an organic disulphide, an organic diselenide, a hexasubstituted organic disilane or a tetrasubstituted organic hyd...
12/08/1981
4248677Process for producing alpha-aminocarboxylic acids and salts thereof
This invention relates to a process for producing alpha-aminocarboxylic acids and salts thereof. More specifically, this invention relates to a process for producing alpha-aminocarboxylic acids or salts thereof from organic imine compounds by electrochemi...
02/03/1981
4208255Process and device for the production of metal-complex compounds suitable for electroless metal deposition
Metal-complex compounds suitable for use in the electroless deposition of said metal are formed in aqueous solution by a method which comprises providing an aqueous solution of the complexing agent, immersing in the solution at least one anode comprising ...
06/17/1980
4146735Preparation of ଱,ଲ-unsaturated carboxylic acids via Mannich intermediates
A process for the preparation of a ଱,ଲ-unsaturated carboxylic acid by reacting formaldehyde, another aldehyde and a mineral acid salt of a secondary amine to form an intermediate Mannich base salt; oxidizing the Mannich base salt to the corres...
03/27/1979
4024032Electrochemical acyloxylation of certain aromatic compounds
This invention provides a process for the electrochemical acyloxylation of aromatic compounds ring-substituted with an electron-withdrawing moiety and having a replaceable nuclear hydrogen. An anhydrous liquid comprising the aromatic substrate and the ani...
05/17/1977
3964983Process for the electrochemical synthesis of organic metal compounds
Process for reacting an H-acidic organic compound, in which the acidic H-atom is bonded to the organic radical by an oxygen or a sulphur atom, e.g. an alcohol, with a metal having a standard potential which is more positive than -1.66 volts and which at m...
06/22/1976
 
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