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7589235 |
High yield and rapid synthesis methods for producing metallo-organic salts
A new method for preparing salts of metal cations and organic acids, especially divalent salts of alkaline earth metal ions from group II of the periodic system and carboxylic acids. The method...
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7534917 |
Method of producing dicarboxylic acids
A method of producing dicarboxylic acids (e.g., α,ω dicarboxylic acids) by reacting a compound having a terminal COOH (e.g., unsaturated fatty acid such as oleic acid) and containing at least one...
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7504536 |
Compositions comprising calcium citrate malate and methods for making the same
A process for producing a calcium citrate malate composition by the steps of: combining a calcium source, a citrate source, a malate source and water to form a calcium citrate malate mixture. The...
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7491845 |
Process for producing adipic acid
It is provided to a process for producing adipic acid which comprises making a wastewater containing hydroxycaproic acid and discharged from the step of oxidizing cyclohexane with molecular oxygen...
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7411031 |
Synthesis of polyanhydrides
The present invention provides a method for forming compounds of Formula
HO—C(═O)R 1 —X—R 2 —X—R 1...
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7411090 |
Process for the recovery of citric acid
The invention provides a process for the recovery of citric acid from an aqueous solution feed stream originating in fermentation of carbohydrates and utilizing an amine solvent extraction step for...
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7371362 |
Catalytic wet oxidation of lactose
A process for converting lactose into carbon dioxide and/or carbon monoxide using catalytic wet oxidation. Oxygen gas and an aqueous solution of lactose are fed to a reactor comprising a Pt/Al 2 O...
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7319165 |
Aminopolycarboxylic acid aqueous solution composition and stabilization method of aminopolycarboxlic acid
The present invention is to provide a stabilized aqueous aminopolycarboxylate solution composition and a method of stabilizing the aminopolycarboxylate through preventing the same from caking. An...
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7304093 |
Ketone compounds and compositions for cholesterol management and related uses
The present invention relates to novel ketone compounds, compositions comprising ketone compounds, and methods useful for treating and preventing cardiovascular diseases, dyslipidemias,...
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7253312 |
Process for producing carboxylic acids
The present invention relates to a process for producing carboxylic acids. It relates more particularly to a process for producing carboxylic acids by oxidation of a hydrocarbon with oxygen or a...
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7247747 |
Process for preparing R-(-)carnitine from S-(-)-chlorosuccinic acid or from a derivative thereof
An inner salt of L-carnitine is prepared by reduction, with a suitable reducing agent, of a compound of formu (I):
where X 1 and X 2 , which may be the same or different, are hydroxy, C 1 -C 4...
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7109343 |
Metal catalysts and methods for making and using same
Compounds having the formula:
are disclosed. M 1 and M 2 are the same or different and are transition metal atoms or ions; Z 2 and Z 3 , independently, are the atoms necessary to complete a...
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7060840 |
Catalytic asymmetric desymmetrization of prochiral compounds
The present invention relates to methods for the synthesis of chiral non-racemic products, e.g., enantiomerically-enriched hemiesters, from prochiral starting materials, e.g., meso anhydrides. The...
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7053236 |
Catalytic asymmetric desymmetrization of prochiral and meso compounds
The present invention relates to methods for the synthesis of chiral non-racemic products, e.g., enantiomerically-enriched hemiesters, from prochiral and meso starting materials, e.g., prochiral...
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7045656 |
Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups
A process is described for recycling catalysts in the reaction for the oxidation of alcohols and/or ketones to carboxylic acids and more particularly the oxidation of cyclic alcohols and/or cyclic...
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7026508 |
Succinate salt of O-desmethyl-venlafaxine
A novel salt of O-desmethyl venlafaxine is provided, O-desmethylvenlafaxine succinate. Pharmaceutical compositions, dosage forms and methods of use are also provided.
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7015356 |
Process for producing dicarboxylic acids
A carboxylic acid is produced by oxidative cleavage of a cycloalkane with oxygen and performs a reaction in the presence of a catalyst including an imide compound and a metallic compound, the imide...
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7001625 |
Solid phase synthesis of salts of organic acids including butyric acid
A process for the solid-phase synthesis of salts of organic acids in a granular, free-flowing, and dust-free form particularly suited for use as animal feed additives. A mixture of liquid organic...
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7001979 |
Polyamide and composition and article including same
A polyamide that includes the reaction product of dimer acid (e.g. a dimer acid including at least 98% by weight dimer), caprolactam, hexamethylene diamine, sebacic acid, and optionally, chain...
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6982286 |
Carbocyclic hydrazino inhibitors of copper-containing amine oxidases
The present invention is directed to carbocyclic hydrazino compounds that function as inhibitors of copper-containing amine oxidases commonly known as semicarbazide-sensitive amine oxidases (SSAO),...
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6946571 |
Drying of adipic acid
Process for drying moist, solid adipic acid using at least two drying stages in which moist solid adipic acid is progressively dried by contacting it in at least two successive stages with a...
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6916949 |
Methods of chemical systhesis of phenolic nitrogen mustard prodrugs
This invention pertains to novel methods for the synthesis of certain nitrogen mustard prodrugs, such as N-{4-[N,N-bis(2-haloethylamino)-phenoxycarbonyl}-L-glutamic acid:
wherein: X 2 is a...
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6909016 |
Production of butane tetracarboxylic acid derivative by means of coupled electrosynthesis
A process for preparing butanetetracarboxylic acid derivatives as product of value I by coupled electrosynthesis which comprises cathodically reducing a compound selected from the group consisting...
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6841709 |
Method of cutting polymer chains and method for producing chemical raw materials
The present invention is to provide a technology to establish a new cycle-based organic chemical industry, which may be called a polymer cascade (polymer reflux industry) wherein the polymer...
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6777213 |
Isolation of carboxylic acids from fermentation broth
A process for recovering carboxylic acids from an aqueous mixture such as a fermentation broth using a solvent containing at least one olefin without the need for first removing the spent...
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6762304 |
Metal catalysts and methods for making and using same
Compounds having the formula: are disclosed. M 1 and M 2 are the same or different and are transition metal atoms or ions; Z 2 and Z 3 , independently, are the atoms necessary to complete a...
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6703422 |
Sulfide and disulfide compounds and compositions for cholesterol management and related uses
The present invention relates to novel sulfide and disulfide compounds, compositions comprising sulfide and disulfide compounds, and methods useful for treating and preventing cardiovascular...
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6677484 |
Melt-sprayed curing agent powder and powder coating compositions made therefrom
Powder comprising substantially spherical particles of at least one compound selected from the group consisting of azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic...
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6664417 |
Catalysts and processes for the conversion of succinates to citraconates or itaconates
Processes for producing citraconic anhydride and citraconic acid using porous materials with specific surface acidities and surface areas are described. The preferred catalyst is a porous gamma...
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6652820 |
Methods of making cesium salts and other alkali metal salts
A method of making a cesium salt is described and involves reacting a cesium sulfate containing solution with lime to form 1) a solution containing at least cesium hydroxide and 2) a residue...
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6585780 |
Crosslinking agents for textile finishing baths and process for using same
Phosphinato-substituted propane- and butanepolycarboxylic acids and derivatives thereof are useful as crosslinking agents for cellulosic materials to render them wrinkle resistant and/or iron free...
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6538156 |
Method for purifying adipic acid by crystallization
The invention discloses a method for purifying adipic acid by crystallization or recrystallization in at least one carbolyxic acid. More precisely, it discloses an improvement in adipic acid...
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6534680 |
Dicarboxylic acid crystallizates
Dicarboxylic acid crystals are prepared from a solution containing at least one organic dicarboxylic acid in a process in which at least one anionic polyelectrolyte having a molecular weight of at...
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6509496 |
Process for making mineral, food or pharmaceutical grade salt products
A process for forming a mineral, food or pharmaceutical grade salt product is described. The process comprises completing all the process steps in a single reactor vessel resulting in high yield...
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6498271 |
Tricarboxylic acids, method, and branched polycarbonates prepared therefrom
Aliphatic tricarboxylic acids, as exemplified by 9-carboxy-1,18-octadecanedioic acid, may be prepared by the biotransformation of an olefinic monocarboxylic acid such as oleic acid to the...
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6465680 |
Process for preparing malonate derivatives or β-keto esters from epoxide derivatives
A process for preparing a malonic acid monoester or β-ketoester from an epoxide includes the steps of reacting an epoxide with carbon monoxide and an alcohol in the presence of a catalytic amount...
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6455715 |
Method of producing dicarboxylic acids suitable for synthesis of polymers or polyamides
A method is described for producing saturated dicarboxylic acids with a chain length of C6 to C21 or the corresponding diamidic dicarboxylic acids from fatty acid cleavage of unsaturated fatty...
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6437180 |
Preparation of aliphatic α, &ohgr -dicarboxylic acids
A process for preparing aliphatic C 4-18 α,ω-dicarboxylic acids by oxidation of C 6-20 α,ω-dienes with hydrogen peroxide or compounds which release hydrogen peroxide under the reaction...
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6433220 |
Methods of extracting catalyst from a reaction mixture in the oxidation of cyclohexane to adipic acid
This invention relates to methods of controlling the oxidation of cyclohexane to adipic acid in the presence of a monobasic acid solvent, by extracting the catalyst from the reaction mixture,...
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6433221 |
Methods of separating catalyst in solution from a reaction mixture produced by oxidation of cyclohexane to adipic acid
This invention relates to methods of controlling the oxidation of cyclohexane to adipic acid in the presence of a monobasic acid solvent, by separating the catalyst from the reaction mixture,...
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6426432 |
One step process for producing dicarboxylic acids
A process for making an alkanedioic acid in which a mixture of a cycloalkene, a base and a solvent is contacted simultaneously with both oxygen and ozone at a temperature between 40 and 60 degrees...
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6417128 |
Methods and replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
This invention relates to methods of replacing water and cyclohexanone with acetic acid in an aqueous solution of catalyst, preferably a cobalt compound. Such an aqueous solution is produced by...
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6395931 |
Malonic acid and esters thereof
A process for preparing malonic acid from the hydrolysis of cyanoacetic acid in the presence of aqueous hydrochloric acid, the process conditions being such that they allow high yields in malonic...
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6372942 |
Pentenoic acid hydroxycarbonylation method
The invention discloses pentenoic acid hydroxycarbonylation into adipic acid. More particularly, it concerns one pentenoic acid hydroxycarbonylation method involving reaction water and carbon...
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6350898 |
Process for preparing malonic esters
Malonic esters of the general formula where R is C 1-10 -alkyl, C 3-10 -alkenyl or aryl-C 1-4 -alkyl, are prepared by reacting an alkali metal salt of malonic acid with a halide of the general...
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6350905 |
Aminohydroxylation of Olefins
Osmium-catalyzed aminohydroxylation reactions are accelerated and expanded in scope by the use of olefinic substrates having ionic groups, either anionic or cationic. The use of ionic groups on...
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6344586 |
Process for producing adipic acid
A process for producing adipic acid is provided which comprises a step of oxidizing hydroxycaproic acid and/or ε-caprolactone with oxygen or oxygen-containing gas using a metal in the platinum...
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6288275 |
Separation and purification of carboxylic acids from fermentation broths
Carboxylic acids, particularly dicarboxylic acids, are separated from a fermentation broth by adjusting the pH of the fermentation broth to about 2.0 or below, and then heating the broth to a...
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6258979 |
Chiral ferrocene phosphines active in asymmetric catalysis
The invention pertains to chiral ferrocene phosphine derivatives and their use with transition metals as asymmetric catalysts in asymmetric hydrogenation.
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6239252 |
Single step process for the preparation of poly (oxyalkylene)-alpha, omega-dicarboxylic acid
The invention relates to single step process for the preparation of poly (oxyalkylene)-alpha, omega-dicarboxylic acids of the formula HO 2 CCH 2 O(CH 2 CHRO) n CH 2 CO 2 H, wherein R is...
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