Patents for C07B 53 - Asymmetric syntheses (6,231)
03/2001
03/20/2001US6204406 Catalyst for asymmetric induction
03/15/2001WO2001018012A1 Electronically tuned ligands
03/15/2001WO2001017952A1 Substituted cyclopentenes, their preparation and their use for chiral scaffolds
03/15/2001CA2380656A1 Substituted cyclopentenes, their preparation and their use for chiral scaffolds
03/14/2001EP1082328A1 Production of optically active phospholanes
03/14/2001CN1287115A Process for producing vitamin D analogue
03/13/2001CA2021328C Stereoselective preparation of z-1,2-diarylallyl chlorides and the conversion thereof into azolylmethyloxiranes and novel intermediates
03/06/2001US6197996 Asymmetrically hydrogenating gamma-trimethylammonium-3-oxabutanoic ester halide in presence of ruthenium-optically active phosphine complex as catalyst, recovering optically active carnitine ester formed
03/06/2001US6197995 Process for manufacture of chiral succinic acid derivatives
03/01/2001WO2001014299A1 Chiral ligands, transition-metal complexes thereof and uses thereof in asymmetric reactions
03/01/2001WO2001014287A1 Method for synthesizing absolute asymmetry
03/01/2001CA2382779A1 Chiral ligands, transition-metal complexes thereof and uses thereof in asymmetric reactions
02/2001
02/28/2001EP1078931A2 Process for the preparation of vitamin D analogues
02/27/2001US6194593 1, 2-bis(dialkylphosphino) benzene derivates having optical activites, process for producing same, and rhodium metal complexes containing same as ligands
02/22/2001WO2001012583A1 Method for the production of adrenaline
02/22/2001WO2001012574A1 Transfer hydrogenation process
02/22/2001WO2000064882A3 Enantiomers of mercapto lactones and processes for their synthesis
02/22/2001CA2383266A1 Transfer hydrogenation process
02/21/2001EP1077218A2 Peptido-mimetic compounds containing RGD sequence useful as integrin inhibitors
02/20/2001US6191284 Ligands and complexes for enantioselective hydrogenation
02/15/2001WO2001010822A1 Process for preparing acids via alpha-chloroepoxy esters
02/15/2001WO2001010819A1 Nitroxy derivatives of (r) and (s)-carnitine
02/15/2001WO2001010814A1 Process for the preparation of naproxene nitroxyalkylesters
02/15/2001WO2000059513A8 NON-CALCEMIC, ANTIPROLIFERATIVE, TRANSCRIPTIONALLY ACTIVE SULFUR-CONTAINING ANALOGS OF 1α, 25-DIHYDROXY VITAMIN D¿3?
02/15/2001CA2381010A1 Process for preparing acids via alpha-chloroepoxy esters
02/15/2001CA2379047A1 Nitroxy derivatives of (r) and (s)-carnitine
02/14/2001EP1021451A4 Asymmetric synthesis and catalysis with chiral heterocyclic compounds
02/14/2001CN1061970C Asymmetrical hydrogenation of ketoisophorone derivatives
02/13/2001US6187956 Method for preparing of L-phenylephrine hydrochloride
02/08/2001WO2001009147A1 Novel chiral phosphorus ligands and the use thereof in the production of optically active products
02/08/2001WO2001009120A1 Amine and amide derivatives as ligands for the neuropeptide y y5 receptor useful in the treatment of obesity and other disorders
02/08/2001WO2001009083A1 Production of n-substituted 2,7-dialkyl-4-hydroxy-5-amino-8-aryl-octanoylamides
02/08/2001WO2001009080A1 Process for the cis-selective catalytic hydrogenation of cyclohexylidenamines
02/08/2001WO2001009079A1 2-alkyl-5-halogen-pent-4-ene carboxylic acids and their production
02/08/2001WO2001009077A1 N-substituted norephedrine chiral derivatives, their preparation and their use for the synthesis of optically active functionalised compounds by hydrogen transfer
02/08/2001WO2000044717A3 Synthesis of oligoketides
02/08/2001DE19936473A1 Neue chirale Phosphorliganden und ihre Verwendung in der Herstellung optisch aktiver Produkte New chiral phosphorus ligands and their use in the preparation of optically active products
02/08/2001CA2380032A1 Amine and amide derivatives as ligands for the neuropeptide y y5 receptor useful in the treatment of obesity and other disorders
02/07/2001EP1073613A2 Main-group metal-based asymmetric catalysts and applications thereof
02/07/2001CN1283184A Process for stereo selective synthesis of prostacyclin derivatives
02/07/2001CN1282739A Intermediate used in preparing oxdiazine and its manufacturing method
02/06/2001US6184413 Supported phase catalyst
02/06/2001US6184404 Process for the selective alkylation of aldehydes by means of organozinc compounds
02/06/2001US6184376 Potent antivirals, especially against herpes infections, such as those caused by varicella zoster virus, herpes simplex, epstein-barr virus, herpes type 6 (hhv-6) and type 8 (hhv-8). shingles in the elderly or chicken pox in the young
02/01/2001WO2001007386A2 Asymmetric ligands having use as catalysts
02/01/2001CA2377971A1 Asymmetric ligands having use as catalysts
01/2001
01/31/2001EP1071676A1 Kinetic resolution of olefins
01/31/2001EP1071640A1 Asymmetric synthesis of 2-aryl-1-substituted butan-2,3-diols
01/30/2001US6180823 Stereoselective process for alkyl phenylglycolic acids
01/30/2001US6180789 Method for obtaining pure enantiomers of a pyridazinone derivative
01/30/2001US6180551 Enantioselective dihydroxylation
01/25/2001WO2001005776A1 Aminothiazole derivatives and their use as crf receptor ligands
01/25/2001WO2001005741A1 Method for producing amines by homogeneously catalyzed reductive amination of carbonyl compounds
01/24/2001EP1070075A1 Chiral phosphorated ligands useful in catalysts
01/24/2001CN1281460A Catalysts for asymmetric synthesis containing rigid chiral ligands
01/23/2001US6177591 Optically active phosphine oxide carboxylic acid and method of producing the same
01/18/2001WO2001004131A1 Diphosphine ligands for metal complexes
01/18/2001DE19938709C1 Adrenaline or its addition salt is prepared on industrial scale with asymmetric hydrogenation as the key step and special sequence of successive steps using a rhodium and bidentate phosphine ligand catalyst system
01/18/2001DE19933611A1 Verfahren zur Herstellung von Aminen durch homogen katalysierte reduktive Aminierung von Carbonylverbindungen A process for preparing amines by homogeneously catalysed reductive amination of carbonyl compounds
01/17/2001EP1069115A1 Process for producing oxazolidin-2-one derivatives
01/17/2001EP1069109A1 Process for production of optically active N-protected-N-methyl-phenylalanine derivative
01/17/2001EP1069097A2 Method for selective reduction
01/17/2001EP0790998B1 Azo derivatives of 5-aminosalicylic acid for treatment of inflammatory bowel disease
01/16/2001CA2313906A1 Process for selective reduction
01/11/2001WO2001002326A1 Process for the synthesis of (r)-1-(3,5-bis(trifluoromethyl)-phenyl)ethan-1-ol by asymmetric transfer hydrogenation
01/11/2001CA2376598A1 Process for the synthesis of (r)-1-(3,5-bis(trifluoromethyl)-phenyl)ethan-1-ol by asymmetric transfer hydrogenation
01/10/2001EP1067127A1 Novel beta-diketone compounds, beta-diketone compounds coordinated to metal, method of organic synthesis with these, and catalyst
01/10/2001EP1066232A1 Method for producing optically active alcohols
01/09/2001US6172249 Chiral ligands for asymmetric catalysis
01/09/2001US6172234 Optically active cyclic amino acid ester derivatives and processes for producing the same
01/09/2001US6172091 Metabolic calcium imbalance and osteoporosis
01/04/2001WO2001001569A2 Process for preparing (-)-(1s,4r) n-protected 4-amino-2-cyclopentene-1-carboxylate esters
01/04/2001WO2001000545A1 PRODUCTION OF OPTICALLY ACTIVE α-HYDROXYACETALS
01/04/2001CA2377801A1 Process for preparing (-)-(1s,4r) n-protected 4-amino-2-cyclopentene-1-carboxylate esters
01/03/2001EP1064290A1 1-phosphanorbornadienes
01/03/2001EP1064244A1 Method for separating a diphosphine diastereoisomers
01/03/2001EP0770056B1 A process for producing [s,s]-ethylenediamine-n,n'-disuccinic acid
01/03/2001CN1278801A Transition metal-catalyzed reactions based on chiral amine oxazolinyl ligands
01/03/2001CN1278528A Process for preparation of 5,6-dihydroxyl-2-amino-1,2,3,4-tetrahydronaphthalene derivatives
01/03/2001CN1278527A Process for preparation of 5,6-dihydrxyl-2-amino-1,2,3,4-tetrahydronaphthalene derivatives
01/03/2001CN1278526A Process for preparation of 5,6-dihydroxyl-2-amino-1,2,3,4-tetrahydronaphthalene derivatives
01/02/2001US6169179 Method for manufacturing (3S,4R)-4-[(R)-1′-formylethyl]azetidin-2-one derivatives
12/2000
12/27/2000CN1059906C Water-soluble phosphine-derivatives
12/27/2000CN1059901C Preparation of arthropodicidal oxadiazines
12/26/2000US6166260 Enantioselectively reducing carbonyl or carbonyl-bearing chemical entities with chiral hydride complex reducing agents; resolving the reduction product through the formation of a complex of the reduction product and the ligand
12/26/2000US6166257 Asymmetric hydrogenation method of a ketonic compound and derivative
12/21/2000WO2000076942A1 Sulphonylamides and carboxamides and their use in asymmetrical catalysis
12/21/2000CA2374553A1 Sulphonylamides and carboxamides and their use in asymetrical catalysis
12/20/2000EP1061062A1 Process for producing butanetriol derivative
12/20/2000EP1060793A1 Stereospecific isomerisation of allylamines with the aid of immobilised phosphorated chiral ligands
12/14/2000WO2000075104A1 Novel method for preparing optically active alpha-aminonitriles
12/07/2000WO2000073274A2 Substituted phenylcyclohexane carboxylic acid amides and their use as adenosine uptake inhibitors
12/07/2000CA2375188A1 Substituted phenylcyclohexane carboxylic acid amides and their use as adenosine uptake inhibitors
12/05/2000US6156935 Chiral phosphorus-based ligands
11/2000
11/30/2000WO2000071541A1 Optically active quinoline carboxylic acid derivatives having 7-pyrrolidine substitutes causing optical activity and a process for preparing thereof
11/30/2000WO2000071503A1 4-cyano-3-hydroxy butanoyl hydrazines, derivatives and process for the preparation thereof
11/30/2000DE19924819A1 Substituierte Phenylcyclohexancarbonsäurebenzylamid (Adenosinaufnahmeinhibitoren) Substituted Phenylcyclohexancarbonsäurebenzylamid (adenosine uptake inhibitors)
11/29/2000EP1055664A1 Process for producing norstatin derivatives
11/29/2000CN1275121A Esters with musky odor and their use in perfumery
11/28/2000US6153758 Complexing with transition metals to form a chiral complexes as a chiral catalysts for stereocontrolled reactions, in particular diastereo and enantioselective reduction, hydroformylation, hydrosilylation, hydrocyanation
1 ... 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 ... 63