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| Number | Title | Issue Date |
| 7432392 | Ester derivatives and medical use thereof A therapeutic agent for hyperlipidemia which has no side effects on the liver unlike conventional MTP inhibitors and has excellent MTP inhibitory activity. Also, provided is an ester compound represented by the general formula (1): | 10/07/2008 |
| 7015360 | Asymmetric catalysts prepared from optically active bisphosphites bridged by achiral diols This invention relates to asymmetric hydroformylation (hf) processes in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active aldehyde or product derived from an opticall... | 03/21/2006 |
| 6541660 | Process for preparing C5 acetate A process is proposed for preparing C5 acetate for Vitamin A synthesis by hydroformylation of 3,4-diacetoxybut-1-ene (3,4-DABE), according to which a 3,4-DABE is used which is obtained by acetoxylation of 1,3-butadiene with acetic acid and air ... | 04/01/2003 |
| 6521752 | Process to separate linear alkyl 5-formylvalerate The invention relates to a process to separate linear 5-formylvalerate compound from a crude mixture comprising 5-formylvalerate compound and 2-, 3- and/or 4-formylvalerate compound by vacuum distillation, wherein the distillation is performed in the pres... | 02/18/2003 |
| 6489505 | Process for producing 3,3-dimethyl-2-formylcyclopropane-carboxylic acid ester There is provided a process for producing 3,3-dimethyl-2-formylcyclopropanecarboxylic ester of formula (1): ##STR1## wherein R represents an alkyl group, a cycloalkyl group or an optionally substituted aralkyl group, which comprises reacting chrysanthemic... | 12/03/2002 |
| 6407282 | Process for producing monoester from dicarboxylic acid fluoride Monoester monoacid fluoride of dicarboxylic acid is produced by allowing dicaroxylic acid fluoride represented by the following general formula: FOCCF(CF3)OCF2 (A)p(CF2)qCOF where A is a bifunctional perfluorinated group having 1 to... | 06/18/2002 |
| 6313343 | Process for the preparation of alpha-oxoaldehydes Alkylene glycol is oxidized in a vapor phase in the presence of alcohol (a), oxygen, and a catalyst (a) (primary reaction). -oxoaldehyde, and alcohol (b) or olefin, are oxidized in a vapor phase in the presence of oxygen and a catalyst (b) (seconda... | 11/06/2001 |
| 6310260 | Separation processes This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or more unreacted rea... | 10/30/2001 |
| 6307109 | Separation processes This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or more nonpolar rea... | 10/23/2001 |
| 6307110 | Separation processes This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or more unreacted rea... | 10/23/2001 |
| 6307108 | Metal-ligand complex catalyzed processes This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated es... | 10/23/2001 |
| 6303829 | Separation processes This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or more nonpolar rea... | 10/16/2001 |
| 6303830 | Metal-ligand complex catalyzed processes This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreacted unsaturated es... | 10/16/2001 |
| 6187963 | Processes for the manufacture of acrolein derivatives Processes are disclosed for the conversion of propylene to an acrolein derivative by converting propylene to acrolein and converting acrolein to the acrolein derivative. The processes utilize oxygen and recycle propane to the acrolein reactor. Process fee... | 02/13/2001 |
| 6184376 | Synthesis of acyclic nucleoside derivatives Methods and novel intermediates of the formula: ##STR1## wherein R6 and R7 are lower alkyl or benzyl or R6 and R7 taken together are --CH2 CH2 --, --CH2 CH2 CH2 | 02/06/2001 |
| 6090974 | Alkyl 3-oxoalkanoate and process for the preparation thereof This invention includes an alkyl 3-oxoalkanoate, and processes for its preparation and use for the synthesis of fatty hydroxylated amino acids, fatty amino alcohols and ceramides.... | 07/18/2000 |
| 6037489 | Method of purifying glyoxylic esters and distillation equipment for purifying glyoxylic esters A method for purifying glyoxylates includes (1) a coarse distillation process in which a crude glyoxylate in which water coexists is, in a film form, continuously subjected to coarse distillation, and (2) an azeotropic dehydration process in which the cru... | 03/14/2000 |
| 6030505 | Process for the continuous preparation of pure 5-formyl valeric acid esters 5-Formylvaleric esters are prepared in a yield of not less than 90% by distillation of a formylvaleric ester mixture of 5-formylvaleric ester and either 3- or 4-formylvaleric ester or a mixture of 3- and 4-formylvaleric esters, where the ester radicals of... | 02/29/2000 |
| 5952530 | Separation processes This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, a nonpolar solvent and said one or more products, w... | 09/14/1999 |
| 5932761 | Process for producing branched aldehydes It is provided a process for industrially advantageously producing a branched aldehyde represented by the formula; ##STR1## wherein Y represents an acyl group of two or more carbon atoms; and X represents an acyloxymethyl group represented by --CH | 08/03/1999 |
| 5932772 | Separation processes This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, a polar solvent and said one or more products, wher... | 08/03/1999 |
| 5767277 | Optically active ଲ-aminoalkoxyborane complex An optically active ଲ-aminoalkoxyborane complex of the formula (I): ##STR1## wherein R1 is C1 -C8 alkyl, C3 -C7 cycloalkyl, C7 -C11 aralkyl or C6 -C10... | 06/16/1998 |
| 5750769 | Halogenated esters useful as intermediates for insecticides The invention provides novel compounds of formula: CF3 --CXCl--CH(OH)CH2 --C(CH3)2 --CH2 --CO2 R(I) where X represents chloro or bromo and R represents hydrogen or alkyl of up to 4 carbon atoms,... | 05/12/1998 |
| 5750768 | Method of manufacturing -oxocarboxylate and catalyst adopted in the method A method of manufacturing -oxocarboxylate includes the steps of: (i) carrying out a vapor phase oxidation of 1,2-diol of formula (1) in a primary reaction vessel, (ii) introducing a resulting gaseous -oxoaldehyde and/or -hydroxyaldehy... | 05/12/1998 |
| 5719312 | Process for the preparation of 5-formylvaleric acid and 5-formylvalerate ester The invention relates to a process for the preparation of 5-formylvaleric acid or the corresponding 5-formylvalerate by hydroformylation of 3-pentenoic acid or 3-pentenoate ester with carbon monoxide and hydrogen in the presence of a catalyst comprising o... | 02/17/1998 |
| 5663348 | Optically active ଲ-aminoalkoxyborane complex An optically active ଲ-aminoalkoxyborane complex of the formula (I): ##STR1## wherein R1 is C1 -C8 alkyl, C3 -C7 cycloalkyl, C7 -C11 aralkyl or C6 -C10... | 09/02/1997 |
| 5648387 | Carboxyalkylethers, formulations, and treatment of vascular diseases Dialkyl ethers lower Lp(a) and triglycerides, and elevate HDL-cholesterol, and are thereby useful for treating vascular diseases and noninsulin-dependent diabetes mellitus.... | 07/15/1997 |
| 5527950 | Process for the preparation of 5-formylvalerate The invention relates to a process for the preparation of a 5-formylvalerate ester by hydroformylating a mixture of pentenoate esters in the presence of a catalyst system which catalyst system comprises a metal from group 8-10 of the Periodic Table of Ele... | 06/18/1996 |
| 5434281 | Process for the stereospecific synthesis of leukotriene B4 in its 6Z, 8E, 10E configuration and intermediates Process for the stereospecific synthesis of leukotriene B4 (LTB4) of 6Z, 8E, 10E configuration of formula ##STR1## in which a dibenzoate triether is prepared which is subjected to a reductive elimination according to the diagram... | 07/18/1995 |
| 5360938 | Asymmetric syntheses This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active product.... | 11/01/1994 |
| 5264616 | Preparation of ω-formylalkanecarboxylic esters ω-Formyl-C4 -C20 -alkanecarboxylic esters are prepared by reacting C4 -C20 -alkenecarboxylic esters with carbon monoxide and hydrogen at from 30° to 150° C. and under from 0.01 to 30 bar in the presence of rh... | 11/23/1993 |
| 5256813 | 3-substituted 2-hydroxy-3-formylpropionic esters, the preparation thereof and the use thereof for preparing 3-substituted 3-formylacrylic esters A 3-substituted 2-hydroxy-3-formylpropionic ester of the formula I ##STR1## where R1 is lower alkyl, and R2 is straight-chain or branched alkyl of 1 to 10 carbon atoms, is obtained by adding an alkanal of the fomrula II ##S... | 10/26/1993 |
| 5239086 | Haptens and tracers for immunoassays for propoxyphene Disclosed is a substantially optically pure hapten, useful in an immunoassay for dextropropoxyphene and/or nordextropropoxyphene. The hapten corresponds to a specified structural formula (IX). Also disclosed is an immunogen derived from the hapten as well as a... | 08/24/1993 |
| 5239108 | Process for producing aliphatic or alicyclic aldehyde A process for producing an aliphatic or alicyclic aldehyde is disclosed, which process comprises the step of hydrogenating an aliphatic or alicyclic carboxylic acid or a derivative thereof with molecular hydrogen in the presence of a catalyst, wherein the... | 08/24/1993 |
| 5217582 | Process for the isolation of alkyl glyoxylate A process is provided for separating high purity alkyl glycolate from a gaseous reaction mixture resulting from the catalyzed gas phase oxidation of alkyl glycolate. A hot solvent which is immiscible with water but selectively dissolves alkyl glycolate an... | 06/08/1993 |
| 5206389 | Acrylates containing an alcohol, aldehyde and/or ether functional group, process for their manufacture and their application to the production of new polymers and copolymers These acrylates are those of formulae: ##STR1## where R=C1 -C12 alkyl, C5 -C12 cycloalkyl, aryl, arylalkyl or alkylaryl; Y=C1 -C12 alkyl, C6 -C12 aryl, heterocycl... | 04/27/1993 |
| 5206419 | 3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate bis(acetoacetate) Process for the preparation of acetoacetates and other ଲketoesters is provided, involving reaction of nitrogen, oxygen or sulfur nucleophiles with a tertiaryalkyl acetoacetate or tertiaryalkyl ଲ-ketoester.... | 04/27/1993 |
| 5202461 | 3-substituted 2-hydroxy-3-formylpropionic esters, the preparation thereof and the use thereof for preparing 3-substituted 3-formylacrylic esters A 3-substituted 2-hydroxy3-formylpropionic ester of the formula I ##STR1## where R1 is lower alkyl, and R2 is straight-chain or branched alkyl of 1 to 10 carbon atoms, is obtained by adding an alkanal of the formula II ##ST... | 04/13/1993 |
| 5187307 | Selectivity in the oxidative dehydrogenation of alkyl glycolate In the catalyzed gas phase oxidative dehydrogenation of alkyl glycolate with an oxygen source in the presence of a metallic silver catalyst, the selectivity of from 500 to about 5000 ppm the reaction is increased at high conversion rates by the addition o... | 02/16/1993 |
| 5126478 | Multi-stage process with adiabatic reactors for preparing alkyl glyoxylates The process in which alkyl glyoxylates are prepared by the catalytic oxidative dehydrogenation of the corresponding alkyl glycolates is improved by carrying out the process in at least two adiabatic reaction stages in series, in which no more than about 6... | 06/30/1992 |
