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| Number | Title | Issue Date |
| 8143439 | Zeolite-catalyzed preparation of alpha-hydroxy carboxylic acids and esters thereof A process for the production of lactic acid and 2-hydroxy-3-butenoic acid or esters thereof by conversion of glucose, fructose, sucrose, xylose and glycolaldehyde dissolved in a solvent in presence of a solid Lewis acidic catalyst. ... | 03/27/2012 |
| 8076504 | Method for production of short chain carboxylic acids and esters from biomass and product of same A method for producing a mixture of short chain carboxylic acids from biomass includes adding biomass to a reactor vessel, heating the biomass to crack it, removing undesired and unreacted materials and light ends from the cracked biomass, and removing a mixture con... | 12/13/2011 |
| 7772419 | Carbonylation of ester A vinyl ester alkoxycarbonylation process comprising reacting a vinyl ester with carbon monoxide in the presence of an alkanol and a catalyst system. The catalyst system used is obtainable by combining: a) a metal of Group VIII B o... | 08/10/2010 |
| 7767845 | Process for producing optically active 2-hydroxybutyric ester A process for producing an optically active 2-hydroxybutyric ester represented by formula (1): by reacting an optically active 2,3-epoxypropionic ester represented by formula (2): ... | 08/03/2010 |
| 7737296 | Method for producing 2-hydroxyester compound A simple and easy-to-use method for producing a 2-hydroxyester compound using a cyanohydrin compound, as a raw material, is provided. A method for producing a 2-hydroxyester compound represented by the general formula (1) (provided that ethyl 2-hydroxy-4-phenylbutyr... | 06/15/2010 |
| 7696375 | Method for producing lactic acid ester This invention provides a method for producing a lactic acid ester that can minimize input energy at the time of production, that can reduce chemical costs, and that can minimize equipment costs. This method comprises steps of: performing an esterification reaction ... | 04/13/2010 |
| 7652167 | Process for production of organic acid esters A process for producing organic acid esters using continuous countercurrent reactive distillation using acid catalysts in a structured packing in a single column (10) is described. In the reactive distillation an organic acid ester is formed by chemical react... | 01/26/2010 |
| 7605286 | Hydroxy-protecting reagent and method of protecting hydroxy with the same The present invention relates to a method of protecting a hydroxyl group, which includes reacting a hydroxyl group-containing compound with a compound represented by the formula (I): wherein R is a phenyl group optionally h... | 10/20/2009 |
| 7582791 | Process for producing optically active ester A process for producing an optically active 2-hydroxybutyric ester (1), characterized by including reacting an optically active 2,3-epoxybutyric ester (2) with a thiol in the presence of scandium trifluoromethanesulfonate or ytterbium trifluoromethanesulfonate, to t... | 09/01/2009 |
| 7435845 | Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability The invention thus provides the use of compounds of the formula (1) where R... | 10/14/2008 |
| 7381834 | Method for stabilizing menthyl lactate A method for stabilizing menthyl lactate is disclosed. The method comprises combining water with a solution comprising menthyl lactate and a water-miscible organic solvent in amounts effective to precipitate menthyl lactate from the resulting aqueous mixture. The aq... | 06/03/2008 |
| 7348451 | Additives for inhibiting gas hydrate formation The invention provides the use of compounds of the formula (1) where R1, R2 are each independently C1- to C22-alkyl, C2- to C22-alkenyl, C6... | 03/25/2008 |
| 7345190 | Carnitine conjugates as dual prodrugs and uses thereof The present invention discloses novel dual prodrug compositions of Formula 1, wherein A is a single bond, —O—, or —CH2—; m and n vary from 0 to 15; p and q vary from 0 to 4; B is a single bond or —CR | 03/18/2008 |
| 7339073 | Method for obtaining 5-halogenolaevulinic acid alkyl esters A method for obtaining a 5-bromolevulinic acid methyl ester or a 5-chlorolevulinic acid methyl ester from either a bromination mixture or a chlorination mixture, containing either a 5-bromo-levulinic acid methyl ester or a 5-chlorolevulinic acid methyl ester, respec... | 03/04/2008 |
| 7297809 | Continuous method for preparing ethyl lactate The invention concerns a continuous method for preparing ethyl lactate by esterifying lactic acid with ethanol, in the presence of a catalyst which comprises reacting said lactic acid with ethanol in an initial ethanol/lactic acid mol ratio not less than 2.5, in the... | 11/20/2007 |
| 7294601 | Phosphines, transition metal complexes containing the same as the ligand, and process for production of optically active carboxylic acids [PROBLEMS] To provide a method by which desired optically active carboxylic acids may be prepared from a carboxylic acid having a carbon-carbon double bond through asymmetric hydrogenation with a catalyst consisting of a transition metal complex containing a water-s... | 11/13/2007 |
| 7230144 | Methods of making intermediates from polyhydroxyalkanoates Methods of forming intermediates from PHAs are disclosed. ... | 06/12/2007 |
| 7214814 | Additives for inhibiting gas hydrate formation The invention provides the use of compounds of the formula (1) where R1, R2 are each independently C1- to C22-alkyl, C2- to C22-alken... | 05/08/2007 |
| 7189558 | Process for producing pravastatin sodium salt using dsm 14455 In one aspect, the present invention provides an improved method for the manufacture of Pravastatin sodium salt by fermentation under optimal fermentation parameters using a new strain of Streptomyces flavidovirens. ... | 03/13/2007 |
| 7186272 | Condensation products of hydroxycarboxylic acids and glycols or glycerol The invention relates to reaction products of glycols, diglycols, higher glycols or glycerol with α-hydroxycarboxylic acids in a molar ratio of 1:2 or higher, especially conforming to the general formula (V) where R is hydrogen or a C1-3 alkyl group, pre... | 03/06/2007 |
| 7186856 | Process for preparing carboxylic acids and derivatives thereof Processes for preparing carboxylic acids and derivatives thereof in which an ammonium salt of the carboxylic acid is heated in the presence of an organic reagent to split the salt and form the acid or, where the organic reagent is an esterifying agent, the correspon... | 03/06/2007 |
| 7166743 | Methods of making intermediates from polyhydroxyalkanoates Methods of forming acrylic acid by heating a PHA are disclosed. The PHA can be derived from a biomass of a non-fossil source. The PHA can be, for example, poly 3-hydroxypropionate or a 3-hydroxypropionate containing polymer. The methods can include, for example, hea... | 01/23/2007 |
| 7135582 | Transition metal complex having diphosphine compound as ligand A transition metal complex having 2,2′-bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-1,1′-binaphthyl as a ligand. The presence of the transition metal complex in the reaction system of an asymmetric reaction system allows the preparation of an objective c... | 11/14/2006 |
| 7122698 | Method for producing α-hydroxycarboxylate The present invention provides a process for more efficiently producing an α-hydroxycarboxylic acid ester wherein side reactions due to the α-hydroxycarboxylic acid ester are inhibited or prevented in comparison with prior art production processes. The inve... | 10/17/2006 |
| 7101909 | Calcium channel drugs and uses Novel multibinding compounds are disclosed. The compounds of this invention comprise 2–10 ligands covalently connected, each of the ligands being capable of binding to a ligand binding site in a Ca++ channel, thereby modulating the biological activities... | 09/05/2006 |
| 7094840 | Compositions comprising low molecular weight polyhydroxyalkanoates and methods employing same Polyhydroxyalkanoate compositions including hot melt adhesive compositions, biodegradable wax compositions, and protective coating compositions are provided and include a low molecular weight polyhydroxyalkanoate, a terminally-modified polyhydroxyalkanoate, or both.... | 08/22/2006 |
| 7057064 | Continuous process for the enantioselective catalytic hydrogenation of β-ketoesters The present invention relates to a continuous process for the enantioselective catalytic hydrogenation of β-ketoesters comprising providing a catalytic hydrogenation zone and maintaining it under conditions of temperature and pressure effective for the catalytic hy... | 06/06/2006 |
| 7057038 | Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids One aspect of the present invention relates to a method for the kinetic resolution of racemic and diastereomeric mixtures of chiral compounds. The critical elements of the method are: a non-racemic chiral tertiary-amine-containing catalyst; a racemic or diastereomer... | 06/06/2006 |
| 7038075 | Production method of racemic 3-hydroxy-3-(2-phenylethyl)hexanoic acid C1-6 alkyl ester The present invention relates to a production method of (R)-3-hydroxy-3-(2-phenylethyl)hexanoic acid which comprises optical resolution of racemic 3-hydroxy-3-(2-phenylethyl)hexanoic acid with an optically active amine of the formula (VIII) ... | 05/02/2006 |
| 7034015 | Aminobenzoephenones The invention relates to a novel class of aminobenzophenones derivatives, to pharmaceutical preparations comprising said compounds, to dosage units of such preparations, to methods of treating patients comprising administering said compounds, and to the use of said ... | 04/25/2006 |
| 7005536 | Method for producing diol derivatives A method of producing a diol derivative efficiently and to high purity is provided. Specifically, the present invention relates to a method of producing a diol derivative having, as a fundamental step, a step of obtaining an α-hydroxycarboxylic acid ester by reacti... | 02/28/2006 |
| 6967257 | Method of purifying lactic acid esters The invention relates to a method of purifying lactic acid esters, wherein an impure lactic acid ester is subjected to a melt crystallization. The impure lactic acid contains not more than 10 wt. % of impurities, based on the total amount of ester, and has a chiral ... | 11/22/2005 |
| 6958411 | Nordihydroguaiartic derivatives for use in treatment of tumors Nordihydroguaiaretic acid derivatives and methods of use thereof for the treatment of tumors. ... | 10/25/2005 |
| 6933404 | Methods of making intermediates from polyhydroxyalkanoates In some embodiments, this invention relates to a method that includes contacting a PHA with an aprotic catalyst to form an ester. The ester has only one monomer unit from the PHA. In certain embodiments, this invention relates to a method that includes treating a PH... | 08/23/2005 |
| 6903233 | Process for producing optically active 3-halogenocarboxylic acid ester and 3-azidocarboxylic acid ester A process for producing an optically active 3-azide-carboxylic acid ester by reacting an optically active 3-hydroxycarboxylic acid ester and a thionyl halide in the presence of a basic substance in an organic solvent to produce an optically active 3-halogenocarboxyl... | 06/07/2005 |
| 6888021 | Hydrogenation of benzenepolycarboxylic acids or derivatives thereof using a catalyst containing macropores A process for producing plasticizers in which a phthalic acid having the CAS Nos. 111381-89-6, 111381-90-9, 111381-91-0, 68515-44-6, 68515-45-7 and 3648-20-7, the formed plasticizers and a method of increasing the plasticity of a plastic product. ... | 05/03/2005 |
| 6878844 | Synthesis of acyclic nucleoside derivatives Methods and novel intermediates for the preparation of acyclic nucleoside derivatives of the formula: where one of R1 and R2 is an amino acid acyl group and the other of R1 and R2 ... | 04/12/2005 |
| 6858749 | Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one The present invention relates to a novel process for producing a δ-lactone of the formula: using an acyl halide of the formula: wherein R1, R2 R | 02/22/2005 |
| 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 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 |
| 6825377 | Method for the dihydroxylation of olefins using transition metal catalysts This invention relates to process for dihydroxylation of olefins using transition metal catalysts to obtain monofunctional, bifunctional, and/or polyfunctional 1,2-diols of the formula (I) R1R2C(OH)—C(OH)R3R4â€... | 11/30/2004 |
