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Document Title |
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7582792 |
Carbonylation 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...
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7399880 |
Process 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...
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7393972 |
Process 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...
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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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6982346 |
Process 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...
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6916950 |
Process 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...
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6881858 |
Asymmetric (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...
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6849758 |
Treatment 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...
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6825379 |
Method 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 C 4 -C 6 dicarboxylates from an alkaline waste solution generated in a caprolactam preparation process, in which the alkaline...
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6737542 |
Process 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...
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6664413 |
Process 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...
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6639091 |
Bidentate 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, R 1 R 2 M 1 —R—M 2 R 3 R 4 (II) wherein M 1 and M 2 are independently P, As or Sb; R 1 , R 2 , R 3 and R 4 independently represent tertiary alkyl groups,...
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6617469 |
Process 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...
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6580003 |
Catalytic 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...
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6555703 |
Process 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...
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6476254 |
Alkoxylated 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....
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6472555 |
Process 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...
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6437170 |
Mixture 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,...
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6423868 |
Process 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...
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6384228 |
Method 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...
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6355829 |
Aspartate-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 wherein X...
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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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6333430 |
Process 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 R 1 is an organic group; and each of R 2 and R 3 is independently an alkyl group...
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6310235 |
Method 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.
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6310003 |
Composition 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...
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6288268 |
Catalyst 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 R 1 , R 2 and R 3 is,...
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6153792 |
Carbonylation process using a flash step with washing
A process for the production of a carboxylic acid in the presence of solid catalyst particles that employs a flash step with a liquid wash is disclosed. This process helps prevent the buildup of...
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6153783 |
Method 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...
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6114576 |
Carbonylation process with integrated heat exchange
A process for the production of a carboxylic acid in the presence of solid catalyst particles that uses the exothermic heat of reaction with high efficiency in recovering the carboxylic acid...
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6087528 |
Process for producing hydroxyalkyl monoacrylate using stannoxane catalysts
A process for producing hydroxyalkyl monoacrylate of the present invention, comprises the steps of: reacting acrylic acid or an acrylic acid derivative with alkane diol for esterification and/or...
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6011171 |
Process for synthesis of tertiary carboxylic acids and the esters thereof
The present invention provides a process for synthesizing tertiary carboxylic acids or the esters thereof having one or two more carbon atoms than the raw material has, comprising reacting in a...
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5922900 |
Process for producing carboxylic acid esters and catalysts therefor
A process for producing carboxylic acid esters by the following steps: a) preparation of a reaction mixture containing an alcohol and a carboxylic acid and/or a carboxylic anhydride and/or a...
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5914426 |
Process for the preparation of di-tert-butyl succinate
A process for the preparation of di-tert-butyl succinate of formula ##STR1## by proton-catalysed esterification of succinic acid with isobutene, which comprises reacting succinic acid or succinic...
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5869729 |
Method of producing an ester compound
An ester compound, for example, carbonic acid ester or succinic acid ester, is produced by catalytically reacting, in gas phase, carbon monoxide with a nitrous acid ester and optionally an olefin...
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5866710 |
Esterification process
A process for the preparation of an ester comprises carrying out an esterification in the presence of a catalyst comprising the reaction product of an orthoester or a condensed orthoester of...
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5786502 |
Process for preparing diesters of higher α,ω-dicarboxylic acids
A process is provided for preparing diesters of higher α,ω-dicarboxylic acids from cycloaliphatic ketones and carbonic diesters in the presence of a strongly basic agent, which involves...
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5744636 |
Process for the production of ethylidene diacetate from dimethyl ether using a heterogeneous catalyst
This invention relates to a process for producing ethylidene diacetate by the reaction of dimethyl ether, acetic acid, hydrogen and carbon monoxide at elevated temperatures and pressures in the...
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5710323 |
Process for producing monocarboxylic and/or dicarboxylic acids
A process for producing a monocarboxylic acid and/or a dicarboxylic acid by the reaction of a starting compound selected from among saturated hydrocarbons, α-olefins of 6 to 20 carbon atoms,...
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5693316 |
Fatty alkoxylate esters of aliphatic and aromatic dicarboxylic acids
Fatty alkoxylate 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...
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5679831 |
Process for the preparation of an ester
Process for the preparation of a terminal ester by carbonylation of an internally unsaturated organic compound in the presence of an alcohol, carbon monoxide, palladium, an acid with a pK a of...
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5670701 |
Preparation of alkyl adipates
The alkyl adipates are prepared by reacting admixture consisting essentially of alkyl 3-pentenoate and alkyl 2-pentenoate with carbon monoxide and an alcohol, at elevated temperature, under...
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5650536 |
Continuous process for production of functionalized olefins
A continuous process for functionalizing olefins, especially polymer olefins in a CSTR or pipe reactor. Esters are preferably produced by continuous reaction of the olefin with carbon monoxide and...
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5646332 |
Batch Koch carbonylation process
A rapid, batch Koch carbonylation/functionalization reaction of at least one polymer olefin, carbon monoxide, and an aliphatic or aryl alcohol in the presence of an acid catalyst with either an...
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5639859 |
Carboxylate protective groups, a process for their preparation, their coupling to a functional group, and their use
Carboxylate protective groups, a process for their preparation, their coupling to a funcitonal group, and their use Carboxylates of polar, hydrophilic alcohols of the formula ##STR1## in which R is...
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5571938 |
Esterification process using a catalyst consisting of sand, stannous tin and aluminate
The present invention provides for an esterification process comprising a catalyst source of stannous tin and an alkali metal aluminate. In one preferred embodiment the catalyst comprises about 92...
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5536872 |
Michael addition process
The reaction between a Michael donor corresponding to the formula Z--CH(E)(E') (e.g., a dialkyl malonate) and a Michael acceptor corresponding to the formula CTT'CT"G (e.g., an alkyl acrylate or...
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5532405 |
Preparation of plasticizer or polyol esters by the staged addition of the lower boiling point reactant
A process for the esterification of acids or anhydrides with alcohols or a polyhydroxy compound wherein the lower boiling point reactant is added to the reaction vessel in stages such that it is...
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5502240 |
Esterification process using a titamium zeolite catalyst
A liquid phase esterification process is described wherein the esterification catalyst is a titanium zeolite.
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5464549 |
Oil soluble dispersants suitable for use in fuels and lubricants
The dispersants are formed by reacting (a) at least one dispersant having at least one primary or secondary amino group and/or at least one hydroxyl group, with (b) at least one polyolefinic...
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