Patents
Sitemap › C07 - Organic chemistry › C07B - General methods of organic chemistry; Apparatus therefor › C07B 53 - Asymmetric syntheses
Patents for C07B 53 - Asymmetric syntheses (6,231)
11/2005
11/24/2005US20050261499 Process for preparing (r)-aryloxypropionic acid ester derivatives
11/24/2005US20050261374 Process for the preparation of prostaglandins and analogues thereof
11/24/2005CA2564954A1 Enantioselective phosphoramidite compounds and catalysts
11/23/2005EP1598332A2 Indanones and carbamates, and their use in the preparation of anthropodicidal oxadiazines
11/17/2005WO2005085262B1 Process for producing aminophosphonic acid derivative
11/16/2005EP1595886A1 Chiral diphosphinoditerpenes and their transition metals complexes
11/16/2005EP1595885A2 Chiral diphosphorus compounds and their transition metal complexes
11/15/2005US6965029 Method for producing enantiomer-free 6,8 dihydroxy octanoic acid esters by means of asymmetric, catalytic hydrogenation
11/10/2005US20050250795 Synthesis of the viricide valomaciclovir stearate in which an acyclic hydroxymethylbutyl acetal derivative is reduced to the alcohol, reacted with an activated amino acid and N-deprotected; one pot reactions; herpes and retroviral infections
11/09/2005EP1206427B1 Chiral ligands, transition-metal complexes thereof and uses thereof in asymmetric reactions
11/09/2005CN1694892A Preparation of partially hydrogenated rac-ansa-metallocene complexes
11/09/2005CN1226263C Preparing method for 3-e menthyloxy -1,2-propanediol
11/03/2005WO2005103280A1 Process for producing optically active 4-(n-protected amino)-1-alken-3-ol and process for producing therefrom 3-benzamido-2-hydroxycarboxylic acid or salt thereof
11/03/2005US20050245762 Isolating chlorosuccinic acid by cooling to 10-20 degrees C. to effect precipitation, where the acid has been prepared by reacting a suspension of aspartic acid in demineralized water containing NaCl with NaNO2 and aqueous HCl; mother liquors from previous reactions may be used as partial substitutes
11/03/2005US20050245760 Preparing liquid-crystalline compounds, agrochemicals, pharmaceuticals or intermediates by providing stereoisomerically enriched 4-aryl-4-hydroxybutanoic acid derivatives
11/03/2005US20050245756 Asymmetric arylation of olefinic unsaturated compounds with aromatic borates using a stereospecific Rh-based catalyst having one or two 1,3,2-dioxaphosphorolane or 1,3,2-dioxaphosphorinane moieties, prepared in situ; improved kinetics
11/03/2005US20050245566 Synthesis of 4,5-dihydro-pyrazolo [3,4-c] pyrid-2-ones
11/02/2005EP1140842B1 Alkyl esters of 3-(3,4-dihalogenophenyl)-2,6-dioxopiperidine-3-propionic acid useful as intermediates
11/02/2005CN1225457C Phosphine reduction method for converting azide into amide
10/2005
10/27/2005US20050240007 Ferrocenyl ligands and method for the production of such ligands
10/26/2005EP1587620A1 Hydrogenation catalysts
10/26/2005EP1501859B1 17a-FLUOROALKYL-11BETA-BENZALDOXIME-STEROIDS, METHOD FOR THE PRODUCTION THEREOF, PHARMACEUTICAL PREPARATIONS CONTAINING SAID STEROIDS AND THE USE THEREOF IN THE PRODUCTION OF MEDICAMENTS
10/26/2005CN1224612C Acetylenic sulfonamide thiol TACE inhibitors
10/20/2005WO2005097811A1 Phosphines, transition metal complexes containing the same as the ligand, and process for production of optically active carboxylic acids
10/20/2005WO2005097745A1 Asymmetric hydrogenation process useful for the preparation of cycloalkanoindole derivatives
10/20/2005WO2003106413A3 Process for the preparation of oxazolidinones and method of use thereof
10/20/2005US20050234253 bidentate organophosphorous ferrocenyl ligands that create a highly asymmetric coordination sphere
10/19/2005EP1586578A2 Method of removing allyl series protecting group using novel ruthenium complex and method of synthesizing allyl ethers
10/13/2005WO2005095416A1 Process for producing flavone c glycoside derivatives
10/13/2005WO2005095335A1 Ylide compounds, process for production of the same, and use thereof as herbicide and intermediates of drugs
10/13/2005US20050228190 C1-symmetric bisphosphine ligands and their use in the asymmetric synthesis of pregabalin
10/13/2005US20050228181 Serotonin receptor antagonists; nervous system disorders, R)-4-(2,3-dihydro-1,4-benzodioxin-5-yl)- beta -methyl-1-piperazineethanol
10/13/2005US20050227995 Phenyl sulfoxides and phenyl sulfones
10/13/2005CA2561401A1 Process for producing flavone c glycoside derivatives
10/12/2005EP1202986B1 Amine and amide derivatives as ligands for the neuropeptide y y5 receptor useful in the treatment of obesity and other disorders
10/12/2005CN1681936A Process for producing optically active erythro 3-cyclohexylserines
10/12/2005CN1681590A Active catalysts for stereoselective ring-opening reactions
10/12/2005CN1680371A Tropan derivatives useful in therapy, method for obtaining thereof and intermediate compounds
10/12/2005CN1680364A Method for producing lipoic acid and dihydrolipoic acid
10/12/2005CN1680343A New fluorinated benzothiadiazine compounds, a process for their preparation and pharmaceutical compositions containing them
10/06/2005WO2005092902A1 Process for producing folic acid derivative
10/06/2005WO2005092830A1 Optically active transition metal/diamine complex and process for producing optically active alcohol with the same
10/06/2005WO2005092825A1 Process for production of optically active alcohols
10/06/2005US20050222470 Process for preparing secondary alcohol
10/06/2005US20050222428 For preparation of chiral cycloalkanoindole prostaglandin (DP) receptor antagonists in high enantiomeric excess
10/06/2005US20050222244 Synthesis of UDP-glucose: N-acylsphingosine glucosyltransferase inhibitors
10/06/2005US20050221368 Methods for identifying RNA binding compounds
10/05/2005EP1582527A1 Synthesis of phosphorus based ligands
10/05/2005EP1582511A2 Process for preparing secondary alcohol
10/05/2005EP1419147B1 Process for preparing ascorbic acids using alkaline earth silicate catalysts
10/05/2005CN1678563A Method for the production of optically active 2-amino-, 2-chloro-, 2-hydroxy or 2-alkoxy-1-alcohols
10/05/2005CN1678562A Method for the enantioselective hydrogenation of amino alcohols
10/04/2005US6951884 Fluorobenzamides and uses thereof
09/2005
09/29/2005US20050215832 by nitroaldol reactions of aldehydes using an asymmetric catalyst; beta -nitroalcohols are important intermediates of optically active aminoalcohols which are useful as starting materials in synthesizing fine chemicals and drugs
09/29/2005US20050215816 Cyclic ketones, their preparation and their use in the synthesis of amino acids
09/29/2005US20050215808 New process
09/28/2005EP1578723A2 Process for the preparation of oxazolidinones and method of use thereof
09/27/2005CA2327056C Phosphine reduction of azides to amides
09/22/2005WO2005087370A1 C1-symmetric bisphosphine ligands and their use in the asymmetric synthesis of pregabalin
09/22/2005US20050209487 Asymmetric hydrogenation of dialkyl, alkylalkenyl or dialkenyl imines in the presence of H2 and a catalytic system of a base and a ruthenium complex containing a diamine and a diphosphine ligand or monodentate phosphine ligands
09/22/2005US20050209471 Stereoselective addition of a nucleophile to a reactive pi -bond of a substrate using a chiral, non-racemic catalysts, producing a stereoisomerically enriched product
09/22/2005US20050209462 Synthesis of benzimidate from benzoic acid
09/22/2005US20050209455 Bisphosphines as bidentate ligands
09/22/2005CA2559086A1 C1-symmetric bisphosphine ligands and their use in the asymmetric synthesis of pregabalin
09/21/2005CN1219756C Process for preparing biphenyl compounds
09/20/2005US6946569 high stereoselectivity; mannitol and tartaric acid starting materials, hydrogenation of ketones, imines, and olefins; 1,2((2,2',5,5'-tetramethyl, 3,3',4,4'-tetrahydroxy) bisphospholane)benzene.
09/20/2005US6946471 2-(2,6-Dichlorophenyl)-Diarylimidazoles
09/20/2005US6946269 Alkyl esters of 3-(3,4-dihalophenyl)-2,6-dioxopiperidine-3-propionic acid of use as intermediates
09/15/2005WO2005085262A1 Process for producing aminophosphonic acid derivative
09/15/2005WO2005085204A1 Process for producing nitrogenous 5-membered cyclic compound
09/15/2005WO2005085184A1 Process for production of cyclopentenenitrile derivatives
09/15/2005WO2005085178A1 Method of preparing optically active serine derivative
09/15/2005WO2005085171A1 Process for producing optically active fluorochemical
09/15/2005WO2005084803A1 Asymmetric reaction catalyst and process for production of optically active compounds with the same
09/15/2005US20050203317 Removing the allyl group in a single reaction step with a high reaction rate and a high functional group selectivity without using any additive; cyclopentadienyl ruthenium (II) complex; catalytic dehydration type reaction of alcohols using the ruthenium complex
09/14/2005CN1219069C Asymmetric synthesis method of antimer chiral silicon cyan aloohol
09/14/2005CN1218945C Method for producing lipoic acid and dihydrolipoic acid
09/14/2005CN1218941C Process for preparing ethyl-sulfonylpiperidine derivatives
09/13/2005US6943272 Norbornane and norbornene derivatives, use thereof and perfumed products containing same
09/13/2005CA2137406C Process for key intermediates for hiv protease inhibitors
09/10/2005CA2500136A1 Method of removing allyl series protecting group using novel ruthenium complex and method of synthesizing allyl ethers
09/09/2005WO2005082861A1 Method of asymmetrically reducing 4-[5-(imidazol-1-yl)-2-methylbenzoyl]-3,5-dimethyl­benzoic acid or ester thereof
09/09/2005WO2005082842A1 Process for producing optically active citalopram, intermediates therefor, and processes for producing these
09/09/2005CA2556075A1 Method of asymmetrically reducing 4-[5-(imidazol-1-yl)-2-methylbenzoyl]-3,5-dimethyl­benzoic acid or ester thereof
09/07/2005EP1187812B1 Substituted phenylcyclohexane carboxylic acid amides and their use as adenosine uptake inhibitors
09/07/2005EP1163206B1 Method for hydrolyzing optically active amides
09/07/2005CN1217923C Process for preparing acid via alpha-chloroepoxy esters
09/06/2005US6939981 Ruthenium complexes of phosphine-aminophosphine ligands
09/01/2005WO2005080370A1 Process for the preparation of enantiomerically pure 1-substituted-3-aminoalcohols
09/01/2005WO2005080318A1 PROCESSES FOR PRODUCTION OF α-AMINOOXYKETONES AND α-HYDROXYKETONES
09/01/2005WO2005080299A1 Novel monosulfonylated and carbonylated chiral compounds derived from a diamine or an aminoalcohol and carrying a pyrrolidinyl group, the preparation thereof, and the applications of the same in asymmetrical catalysis
09/01/2005WO2005080298A1 CATALYTIC ASYMMETRIC SYNTHESIS OF OPTICALLY ACTIVE α-HALO-CARBONYL COMPOUNDS
09/01/2005US20050192454 Process for the cyanation aldehydes
09/01/2005US20050192317 Novel diamines having a casr modulating activity
09/01/2005US20050189515 Liquid crystal compounds, preparation thereof, and composition containing the same
09/01/2005DE102004007499A1 Verfahren zur Herstellung optisch aktiver Alkohole oder Carbonsäuren A process for producing optically active alcohols or carboxylic acids
09/01/2005DE102004007498A1 Hydrierverfahren zur Herstellung optisch aktiver Alkohole oder Carbonsäuren Hydrogenation process for producing optically active alcohols or carboxylic acids
09/01/2005CA2554297A1 Catalytic asymmetric synthesis of optically active .alpha.-halo-carbonyl compounds
08/2005
08/31/2005EP1567535A1 Bidentate c,p chiral phosphine ligands
08/31/2005EP1567464A1 Catalytic hydrogeneration of carbon-heteroatom double bonds
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