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Class 560/204 - Preparing esters by esterification or carbonylation


Subclass of Class 560 - Organic compounds -- part of the class 532-570 series
No. of patents: 323
Last issue date: 11/08/2011


1                  
NumberTitleIssue Date
8053594Preparation of diesters from imide/dinitrile compounds
Diester compounds are prepared from imide/dinitrile compounds employing a vapor-phase hydrolysis of dinitrile compounds in the presence of alcohol, more particularly from branched dinitrile compounds, such as methylglutaronitrile or branched dinitrile compounds obta...
11/08/2011
8026386Methods for the synthesis of olefins and derivatives
The invention provides a method of producing acrylic acid. The method includes contacting fumaric acid with a sufficient amount of ethylene in the presence of a cross-metathesis transformation catalyst to produce about two moles of acrylic acid per mole of fumaric a...
09/27/2011
7820849Process for the carbonylation of conjugated dienes using a palladium catalyst system
A process is provided, in particular a continuous process for the carbonylation of butadiene by reacting the butadiene with carbon monoxide and a hydroxyl group-containing compound in the presence of a palladium catalyst system in a reaction zone to form a reaction ...
10/26/2010
7816554Process for the production of esters of mono-, di- or polycarboxylic acids
A process for the production of carboxylic acid esters by reaction of a carboxylic acid selected from mono-, di- and polycarboxylic acids, with an alcohol in the presence of water of solution comprising the steps of: (a) providing a solution comprising the carboxyli...
10/19/2010
7667068Process for reactive esterification distillation
A process for producing organic acid di- or tri-esters, particularly citric acid tri-esters, with the available acid groups esterified using countercurrent reactive distillation using acid catalysts in a structured packing is described. In the reactive distillation ...
02/23/2010
7582792Carbonylation process
Disclosed is a carbonylation process for the production of carboxylic acids, carboxylic acid esters and/or carboxylic acid anhydrides wherein a carbonylation feedstock compound selected from one or more organic oxygenates such as alcohols, ethers, and esters is cont...
09/01/2009
7399880Process for removing farnesol from mixtures with alpha-bisabolol
Process for esterification of farnesol in an initial mixture comprising alpha-bisabolol, farnesol and optionally other components, with the following steps: 1. Preparation or production of the initial mixture, 2. Adding (i) a transesterific...
07/15/2008
7393972Process for preparing amino acid esters and their acid addition salts
The invention provides a process for preparing amino acid esters and/or their acid addition salts from monomeric or polymeric amino acids, peptides, proteins and alcohols, which comprises carrying out the reaction in supercritical alcohols, preferably at pressures a...
07/01/2008
7342050Method for preparing a lactic acid ester composition and use thereof as solvent
The invention concerns a method for preparing a lactic acid ester composition based on a lactic acid composition involving a step of transforming the composition into a lactic acid oligomeric composition having a mean degree of polymerisation (DPM) ranging between 2...
03/11/2008
7335799Hydroxyl compounds and compositions for cholesterol management and related uses
The present invention relates to novel hydroxyl compounds, compositions comprising hydroxyl compounds, and methods useful for treating and preventing a variety of diseases and conditions such as, but not limited to aging, Alzheimer's Disease, cancer, cardiovascular ...
02/26/2008
7323608Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
One aspect of the present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-sulfur bond between the sulfur atom of a t...
01/29/2008
7250481Method for the production of esters of polyalcohols
Unsaturated acids are esterified with polyalcohols. The resulting reaction mixtures have utility. ...
07/31/2007
7115784Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
The present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-nitrogen bond between the nitrogen atom of an amide or a...
10/03/2006
7060840Catalytic 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 present invention also relates to catalysts for the aforementioned me...
06/13/2006
7053236Catalytic 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 and meso cyclic anhydrides. The present invention also relates to catal...
05/30/2006
7026473Process for the carbonylation of pentenenitrile
Processes to prepare 5-cyanovaleric acid or its ester are provided, by carbonylation of a pentenenitrile, wherein pentenenitrile is reacted with carbon monoxide and water and/or an alcohol in the presence of a catalyst system. The catalyst system contains: ...
04/11/2006
6982346Process of making D-panthenyl triacetate
A process of making D-panthenyl triacetate which includes reacting D-panthenol with acetic anhydride in the presence of the catalyst polymer bound dimethylaminopyridine to form an exothermic mixture. The so-produced acetic acid, and the catalyst are removed from the...
01/03/2006
6916950Process for preparing carboxylic esters
Carboxylic esters are prepared by a process, which comprises reacting dicarboxylic or polycarboxylic acids or their anhydrides with alcohols in a liquid medium with the concomitant removal of water formed by the esterification reaction by azeotropic distillation tog...
07/12/2005
6881858Asymmetric (meth)acrylate crosslinking agents
Asymmetric (meth)acrylate crosslinking agents may be prepared by reacting a hydroxyacrylate with methacrylic anhydride to give a crosslinking agent with acrylic and methacrylic groups. Asymmetric (meth)acrylate crosslinking agents can be employed in the production o...
04/19/2005
6849758Treatment of mixtures that contain at least one compound with at least one ethylenically unsaturated group
Mixtures containing monomers having at least one ethylenically unsaturated group are chemically and/or physically treated in the presence of the reaction products of alkylsuccinic anhydrides and stable N-oxyl radicals having a hydroxyl group. ...
02/01/2005
6825379Method for recovering and producing C4-C6 dicarboxylate from alkaline waste solution generated in caprolactam preparation process
The present invention relates to a method for recovering and producing C4-C6 dicarboxylates from an alkaline waste solution generated in a caprolactam preparation process, in which the alkaline waste solution is treated with sulfuric acid to se...
11/30/2004
6737542Process for the carbonylation of conjugated dienes
The present invention relates to a process for the carbonylation of conjugated dienes, whereby a conjugated diene is reacted with carbon monoxide and a hydroxyl group containing compound in the presence of a catalyst system including: (a) a source of palladium catio...
05/18/2004
6706912Process for the carbonylation of ethylenically unsaturated compounds
Process for the carbonylation of ethylenically unsaturated compounds having 3 or more carbon atoms by reaction with carbon monoxide and an hydroxyl group containing compound in the presence of a catalyst system. The catalyst system includes (a) a source of pa...
03/16/2004
6664413Process for production of esters
A process for producing an ester comprises the steps of: (a) feeding to a first vessel a feed that comprises organic acid, alcohol, and water, whereby organic acid and alcohol react to form monomeric ester and water, and whereby a first liquid effluent is...
12/16/2003
6639091Bidentate ligand, catalyst system containing such ligand and a process for the carbonylation of ethylenically or acetylenically unsaturated compounds using such a catalyst system
Bidentate ligand of formula II, wherein M1 and M2 are independently P, As or Sb; R1, R2, R3 and R4 independently represent tertiary alkyl groups, or R1 and R2 together and/...
10/28/2003
6617469Process for preparing malonic diesters in a reactor with internal heat exchangers
A process for preparing malonic diesters by carbonylation of haloacetic esters and reaction with monohydric alcohols and a base in the presence of a transition metal catalyst, preferably a catalytic cobalt carbonyl complex, using a stirred reactor with on...
09/09/2003
6580003Catalytic asymmetric desymmetrization of meso 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 present invention also relates to catalysts for the aforem...
06/17/2003
6555703Process for the preparation of carboxylic acid benzyl esters
The invention relates to a process for forming a carboxylic benzyl ester comprising reacting a dibenzyl ether with a carboxylic acid in the presence of a heteropolyacid and forming a carboxylic acid benzyl ester....
04/29/2003
6476254Alkoxylated fatty alcohol dicarboxylic acid esters
Fatty alkoxylated esters consisting of diesters of aliphatic or aromatic dicarboxylic acids, formed by reacting the acid with a stoichiometric excess of one or more polyalkoxylated fatty alcohols. Non-aqueous compositions for topical application are also ...
11/05/2002
6472555Process for the production of esters from alcohols using acetic acid as acetylating and clays as catalysts
The present invention relates to a process for the preparation of esters from alcohols using acetic acid as acetylating agent and clays as catalysts, which comprises the preparation of esters in a single step from the reaction of aliphatic, acyclic, cycli...
10/29/2002
6437170Mixture of diesters of adipic or phthalic acid with isomers of nonanols
The mixture described is a mixture of isomeric nonanol diesters of a dicarboxylic acid, selected from the class consisting of a mixture of diesters of adipic acid in the 1 H NMR spectrum of which, observed in CDCl3, the ratio of the ...
08/20/2002
6423868Process for the production of an aqueous monoester peroxycarboxylic acid solution, the solution obtainable by this process, and its use as disinfectant
Process for the production of an aqueous monoester peroxycarboxylic acid solution by reaction of a peroxygen compound with at least one dicarboxylic acid and with at least one alcohol optionally in the presence of an acid catalyst. Aqueous monoester perox...
07/23/2002
6384228Method for synthesis of halopyridyl-azacyclopentane derivative and intermediate thereof
The present invention relates to a method for synthesis of an optically active halopyridyl-azacyclo-pentane derivative and the intermediate thereof which comprises preparing an optically active allene-1,3-dicarboxylic acid ester derivative from an optical...
05/07/2002
6355829Aspartate-terminated urea/urethane prepolymers and their use in coating compositions
The present invention relates to aspartate-terminated urea/urethane prepolymers that are based on the reaction products of NCO prepolymers with compounds corresponding to the formula ##STR1## wherein X represents an organic group which has a valency of n ...
03/12/2002
6350898Process for preparing malonic esters
Malonic esters of the general formula ##STR1## where R is C1-10 -alkyl, C3-10 -alkenyl or aryl-C1-4 -alkyl, are prepared by reacting an alkali metal salt of malonic acid with a halide of the general formula R--X (II), wher...
02/26/2002
6333430Process for preparing tert-alkyl ester from carboxylic acid
A process for preparing a tert-alkyl carboxylic acid ester represented by the formula (III): ##STR1## wherein R1 is an organic group; and each of R2 and R3 is independently an alkyl group having 1 to 4 carbon atoms, compri...
12/25/2001
6310235Method for producing ester plasticizers
The invention relates to an improved method for producing ester plasticizers by reacting di- or polycarboxylic acids or their anhydrides with alcohols in the presence of metal catalysts....
10/30/2001
6310003Composition of chemicals for manipulating the behavior of the orange wheat blossom midge, sitodiplosis mosellana (Gehin)
The invention relates to a composition and procedure for manipulating the behavior of the orange wheat blossom midge, Sitodiplosis mosellana. More importantly, this invention relates to the preparation and use of 2,7-nonanediyl dibutyrate or stereoisomers...
10/30/2001
6288268Catalyst for bisalkoxycarbonylation of olefins, and method for production of succinate derivatives
A catalyst for the bisalkoxycarbonylation of olefins comprising a noble metal compound and a phosphine chalcogenide of the following formula (1): ##STR1## wherein each of R1, R2 and R3 is, independently, an alkyl group or ...
09/11/2001
6153783Method for preparing a difunctional aliphatic organic compound
A two-step process for producing a difunctional organic compound is provided which comprises: a) reacting a cycloalkanone with a 2-substituted-1-alkene in the presence of an enamine catalyst to produce the corresponding substituted cycloalkanone intermedi...
11/28/2000
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