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| Number | Title | Issue Date |
| 7629488 | Process for the preparation of opioid modulators The present invention is directed to novel processes for the preparation of opioid modulators (agonists and antagonists) and intermediates in their synthesis. The opioid modulators are useful for the treatment and prevention of as pain and gastrointestinal disorders... | 12/08/2009 |
| 7579500 | Method for producing 2,5-dimethylphenyl acetic acid The invention relates to a method for preparing 2,5-dimethylphenylacetic acid by converting p-xylene with chloroacetyl chloride into 2-chloro-1-(2,5-dimethylphenyl)ethanone, which is reacted with the compound of the formula (II) to give the compound of the formula (... | 08/25/2009 |
| 7470809 | Process for the production of [2-(4-fluoro-benzyl)-phenyl]-acetic acid The present invention relates to a novel process for the production of [2-(4-fluoro-benzyl)-phenyl]-acetic acid, a compound obtainable from phthalic anhydride. The process comprises the subsequent steps a) through e): a) reacting phthalic anhydride with... | 12/30/2008 |
| 7439390 | Process for preparing amino acids using the amidocarbonylation reaction The present invention relates to a sequence for the preparation of amino acids, for example alpha-amino acids, in particular methionine, by making use of an amidocarbonylation reaction in the presence of a cobalt carbonyl catalyst and separating the catalyst in the ... | 10/21/2008 |
| 7414160 | Process for producing aromatic compounds A process produces an aromatic compound by bringing an aromatic compound (B) into contact with molecular oxygen (C) in the presence of a catalyst (A) comprising at least one of (A1) a heteropolyacid and/or a salt thereof, and (A2) a mixture of oxoacids and/or salts ... | 08/19/2008 |
| 7326323 | High capacity purification of thermally unstable compounds Separations processes and apparati capable of purifying thermally sensitive materials at high capacity. An apparatus having a rectification section and a stripping section with the stripping section having a stripping tray with 5 to 50% open area, a pressure drop fr... | 02/05/2008 |
| 7271285 | Process for producing aromatic carboxylic acids An aromatic compound (C) is reacted with carbon monoxide (D) and molecular oxygen (E) in the presence of a palladium compound catalyst (A) and a catalyst (B) and thereby yields a aromatic carboxylic acid corresponding to the aromatic compound (C) except with one or ... | 09/18/2007 |
| 7271287 | Process for producing aromatic hydroxycarboxylic acids There is provided a process for producing an aromatic hydroxycarboxylic acid which is capable of suppressing the formation of by-products and enhancing the selectivity of the intended product and is free from any purifying step. The process is characterized in that ... | 09/18/2007 |
| 7169879 | Bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenyl phosphine oxide derivative and synthesis thereof The present invention relates to bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphine oxide compounds and synthesis thereof, more particularly to novel bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphine oxide compounds having both a perfluorina... | 01/30/2007 |
| 7115782 | Process for producing aromatic compounds by Friedel-Crafts reaction There is provided a process for producing an aromatic compound by Friedel-Crafts reaction product, which comprises reacting an aromatic compound with an ester compound in the presence of a heteropolyacid-containing solid acid catalyst. ... | 10/03/2006 |
| 7047702 | Perimeter angle trim A wall molding for suspended ceiling systems has a self-aligning feature adapted to locate one end of a piece being installed on the end of a previously installed piece so that an installation of high quality workmanship is quickly obtained. The self-aligning featur... | 05/23/2006 |
| 6921731 | Process for regenerating Pd catalysts Process for regenerating a Pd catalyst after a homogeneously catalyzed C—C coupling reaction in which the Pd catalyst precipitates, is separated from the reaction mixture and subsequently treated with I2 or Br2. The Pd catalyst can then be us... | 07/26/2005 |
| 6858753 | Process for the preparation of carboxylic acids from aliphatic alcohols The present invention provides an improved process for the production of carboxylic acids by the carbonylation of alcohol. The process involves contacting an alcohol with carbon monoxide in the presence of a nickel compound, a heterocyclic organic compound and an io... | 02/22/2005 |
| 6818786 | Process for the preparation of ethyl 3-ethoxy-4-ethoxycarbonyl-phenylacetate The present invention relates to a process for the preparation of ethyl 3-ethoxy-4-ethoxycarbonyl-phenylacetate having formula 1 Ethyl 3-ethoxy-4-ethoxycarbonyl-phenylacetate (1) is an important key intermediate for the ... | 11/16/2004 |
| 6784313 | Process for producing carboxylic acids A process for producing a carboxylic acid having (n+1) carbon atoms, which includes carbonylating an alcohol having n carbon atoms, and/or an ester of the alcohol and the carboxylic acid in each alkyl group with carbon monoxide in the presence of a catalytic system ... | 08/31/2004 |
| 6660883 | Process for the preparation of 2-aryl propionic acids The present invention provides an improved process for the preparation of 2-aryl propionic acid which by subjecting an aryl compound selected from an aryl alcohol or aryl halide or an aryl olefin to carbonylation in the presence of a halide source, a prot... | 12/09/2003 |
| 6653502 | Process for preparing phenylacetic acid derivatives A process for preparing phenylacetic acid derivatives of the formula (I) by reacting benzyl chlorides of the formula (II) ##STR1## with a compound of the formula R6 OH and with carbon monoxide in a dipolar aprotic solvent in the presence of a c... | 11/25/2003 |
| 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 catalytic cobalt carbonyl complex, using a stirred reactor with on... | 09/09/2003 |
| 6562996 | Alkyl aromatic aldehydes A composition containing isomeric mixtures of arylaldehydes prepared from a mixed alkyl aromatic feedstock. A composition containing isomeric mixtures of dimethylbenzaldehydes prepared from a mixed xylene feedstock using a Gatterman-Koch type reaction. A ... | 05/13/2003 |
| 6555704 | Process for the carbonylation of arylalkyl halides A method is provided for the preparation of alpha-aryl-propionic acids such as ibuprofen by carbonylating the corresponding 1-arylethyl halide in an acidic aqueous medium containing a palladium catalyst. In the preparation of ibuprofen, 1-(4'-isobutylphen... | 04/29/2003 |
| 6548698 | Oxidative carbonylation of toluene catalyzed by rhodium and iridium This invention relates generally to the oxidative carbonylation of toluene, catalyzed by rhodium or iridium complexes in the presence of an oxidant and under mild conditions, whereby toluic acid is produced with para-selectivity up to 98%.... | 04/15/2003 |
| 6531597 | Process for preparation of 2-phenyl acetic acid derivatives The present invention is a process for the preparation of a compound of formula ##STR1## The compounds of formula I are valuable intermediates for the manufacture of therapeutically active compounds.... | 03/11/2003 |
| 6521783 | Processes for preparing oxygenates This invention relates in part to a processes for the conversion of a feedstock stream comprising carbon monoxide and hydrogen to a product stream comprising at least one of an ester, acid, acid anhydride and mixtures thereof. This invention also relates ... | 02/18/2003 |
| 6444844 | Process for the preparation of a carboxylic acid The present invention relates to a process for the preparation of a carboxylic acid of the formula III, ##STR1## wherein R1 is aryl, substituted aryl, naphthyl, substituted naphthyl or alkyl, R2, R3, R4 and R | 09/03/2002 |
| 6388141 | Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide The present invention relates to processes for the preparation of oxo products by the hydroformylation of substrates having C.dbd.C double bonds using unmodified rhodium catalysts in a reaction mixture essentially consisting of the substrates, the catalys... | 05/14/2002 |
| 6365773 | Process for producing fluoroaromatic carboxylates This invention describes processes for producing halomagnesium fluoroaryl carboxylates. In one such process, a fluoroaryl Grignard reagent is added to an anhydrous liquid ethereal medium pretreated with carbon dioxide.... | 04/02/2002 |
| 6294687 | Process for the preparation of saturated carboxylic acids and their esters The present invention discloses this invention relates to a process for the conversion of olefinically unsaturated compounds to corresponding carboxylic acids and their esters of formula III ##STR1## wherein R1, R2, R3 and... | 09/25/2001 |
| 6268527 | Method for producing benzoic acid derivatives The invention relates to a method for producing a benzoic acid derivative represented by the general formula (1). The method includes the step of reacting an aromatic compound represented by the general formula (2), with carbon monoxide and a hydroxy comp... | 07/31/2001 |
| 6268526 | Palladium catalyzed carbonylation process utilizing aromatic substituted alcohols and/or aromatic substituted alkyl halides A mixture formed from an aromatic substituted alcohol and/or an aromatic substituted alkyl halide, and a copper-free palladium catalyst is carbonylated with carbon monoxide. Extremely high yields of the desired alpha-substituted carboxylic acid can be obt... | 07/31/2001 |
| 6197997 | Loaded ion exchange resins, their preparation and uses A loaded ion-exchange resin, which resin has been loaded in its shrunken form. Also a process for removing iodide compounds from a liquid carboxylic acid and/or carboxylic acid anhydride obtained from the Group VIII noble metal catalysed, alkyl iodide co-... | 03/06/2001 |
| 6169201 | Process for the preparation of N-acylamino acids Process for the preparation of N-acetyl protected amino acids of Formula I ##STR1## by amido carbonylation utilizing carbon monoxide, nitrile, and an aldehyde in the presence of a metal catalyst.... | 01/02/2001 |
| 6121500 | Production of 6-bromo-2-naphthol and derivatives A mixture of water and a glycol, such as ethylene glycol, is employed as the solvent for the reaction between 1,6-dibromo-2-naphthol and an alkali metal sulfite in the preparation of 6-bromo-2-naphthol and its derivatives to effect a substantial reduction... | 09/19/2000 |
| 6114550 | Method for the stereo-selective preparation of a derivative of ଲ-phenyl-isoserine and its use in the preparation of taxane derivatives A ଲ-phenylisoserine derivative of general formula (I): ##STR1## in the form of a salt or an ester, in which Ar represent an aryl radical, R represents a phenyl or naphthyl or a O--R1 radical and G1 represents --CH2 | 09/05/2000 |
| 6096920 | Preparation of carboxylic compounds and their derivatives Palladium-catalyzed arylation of an olefin (e.g., ethylene) with an aromatic halide (e.g., 2-bromo-6-methoxynaphthalene, m-bromobenzophenone, or 4-isobutyl-1-bromobenzene) is conducted in specified media. After a special acid or base phase separation proc... | 08/01/2000 |
| 6093847 | Process for the preparation of ibuprofen The present invention relates to an process for the preparation of ibuprofen, which comprises reacting para isobutyl phenylethanol (p-IBPE), a halide source, a protonic acid, water and the catalyst which is a compound having formula 1 which is shown hereb... | 07/25/2000 |
| 6080888 | Preparation of olefinic compounds and carboxylic derivatives thereof Arylolefinic compounds are prepared by reacting aryl halide with an olefinic compound in the presence of a polar liquid reaction medium containing (a) secondary or tertiary amine as a hydrogen halide acceptor (b) a catalyst system formed from (i) Pd or Pd... | 06/27/2000 |
| 5922901 | Method for producing dimerization product of acrylonitrile It is contemplated to provide an industrially adapted method for producing a dimerization product of acrylonitrile, which method is capable of producing a straight chain dimer of acrylonitrile efficiently at a high yield in a simple manner using a highly ... | 07/13/1999 |
| 5902898 | Preparation of aralkanoic acids and esters using mixed ligand catalyst The activity of a palladium catalyst in the carboxylation of an aralkene with carbon monoxide and water or an alcohol in the absence of oxygen can be enhanced when it is used in conjunction with (A) a ligand mixture comprising compounds corresponding to t... | 05/11/1999 |
| 5808142 | Process for the preparation of 2-hydroxynaphthalene-6-carboxylic acid A process for the preparation of 2-hydroxynaphthalene-6-carboxylic acid using potassium carbonate and CO at temperatures above 260° C. and at a pressure of at least 10 bar comprises using 2-hydroxynaphthalene-3-carboxylic acid and/or 2-hydroxynaphth... | 09/15/1998 |
| 5756853 | Process for the preparation of a substituted 4-hydroxybenzaldehyde The subject of the present invention is a process for the preparation of a 4-hydroxybenzaldehyde carrying at least one substituent in the position ortho to the OH group. It more particularly relates to the preparation of 3-methoxy-4-hydroxybenzaldehyde an... | 05/26/1998 |
