Patents
Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307)
06/2002
06/04/2002US6399807 Reacting 2,4,5-trifluoroaniline with nitrosating agent in diluent
06/04/2002US6399781 A key intermediate in the production of nevirapine, starting by reacting acetylacetaldehyde dimethyl acetal with malononitrile, in the presence of an ammonium salt catalyst
06/04/2002US6399534 Bidentate organic phosphite ligands and compositions
05/2002
05/30/2002WO2002000608A3 A process for the preparation of 2,2-dimethyl-5-(4-chlorobenzyl) cyclopentanone and an intermediate useful therefor
05/30/2002US20020065431 Promoted multi-metal oxide catalyst
05/30/2002US20020065417 Useful as ligands for metal catalysts for asymmetric reactions, in particular as rhodium complexes for asymmetric hydrogenation of enamide, itaconate, and alpha-ketoester compounds
05/29/2002EP1208081A1 Method for producing cyanoacetic acid esters
05/29/2002DE10145958A1 Production of catalyst for oxidation or ammoxidation of propane or isobutane involves drying and calcining a mixture of niobium and other metal compounds, with niobium being in the form of a complex, e.g. with hydrogen peroxide
05/29/2002CN1351586A Ammoxidation of a mixture of ketones to acetonitrile and hydrogen cyanide
05/28/2002US6395939 Catalytic etherification and condensation with copper catalysts
05/28/2002US6395920 Obtaining 2-substituted and 2,2- disubstituted acetals of malondialdehyde from ortho formates and substituted vinyl ethers in the presence of an acidic catalyst
05/28/2002US6395916 Amine, phosphine ligands
05/28/2002US6395142 Method and apparatus for purifying low grade acetonitrile and other constituents from hazardous waste
05/23/2002WO2002040573A1 Solid-supported optically active binaphthyls and process for preparing asymmetric amino nitrile derivatives with the same
05/23/2002WO2002040440A1 Production of 6-aminocaproic acid
05/23/2002WO2002006212A3 Process for the purification and recovery of acetonitrile
05/23/2002US20020062042 Promoted multi-metal oxide catalyst
05/23/2002US20020062038 Ir and/or Sm promoted multi-metal oxide catalyst
05/23/2002US20020062033 Intermediates of aromatic amidine derivatives which have anticoagulation action
05/23/2002DE10057055A1 Amino-malonic acid dinitrile preparation, for use as intermediate for soluble guanylate cyclase stimulating drugs, by reacting N,N-disubstituted iminium salt and trimethylsilyl cyanide
05/23/2002CA2423319A1 Production of 6-aminocaproic acid
05/22/2002EP1206445A1 Method for making methyl ethyl ketone cyanohydrin
05/21/2002US6392111 Reacting aromatic compound with olefin
05/21/2002US6392084 Method for production of organic fluorine compound
05/21/2002US6392083 Reacting a cyanobenzylamine with an acid selected from hydrochloric acid, sulfuric acid, acetic acid, trifluroacetic acid and propionic acid to form a salt having high bulk density
05/21/2002US6392081 Processes for preparing pesticidal intermediates
05/21/2002US6392080 Process for the preparation of a cyanobiphenyl
05/21/2002US6392048 Process for preparing carbocyclic or heterocyclic nitriles by vapor phase ammoxidation
05/16/2002WO2002038536A1 Processes for the preparation of unsaturated 3-aminonitriles
05/16/2002WO2001072697A3 Process for the carbonylation of pentenenitrile
05/16/2002WO2001068743A3 Porous polymer/carrier solid phase reactants, method for producing same and the use thereof
05/16/2002US20020058836 Promoted multi-metal oxide catalyst
05/16/2002US20020058835 Halogen promoted multi-metal oxide catalyst
05/16/2002US20020058831 Metathesis of functionalized allylic olefins
05/16/2002US20020058830 Reacting formaldehyde, dimethylamine per mol of hydrocyanic acid in a mixture containing 2,4-diamino-6-phenyl-1,3, 5-triazine (benzoguanamine) to form color stable solution
05/15/2002EP1204623A2 Improved metal-ligand complex catalyzed processes
05/15/2002CN1349507A Pyridine-2,3-dicarboxylic acid diamides
05/15/2002CN1084729C Process for producing alpha, beta-unsaturated nitrile
05/10/2002WO2002036549A2 Continuous processes and apparatus for forming cyanoacetate and cyanoacrylate
05/08/2002DE10051196A1 Kontinuierliches Verfahren zur Cyanalkylierung von Verbindung mit einer oder mehreren NH-Funktionen A continuous process for Cyanalkylierung of compound having one or more NH functions
05/08/2002CN1348440A Method for hemihydrogenating dinitriles to form aminonitriles
05/08/2002CN1347866A Recirculating process
05/08/2002CN1347756A Cocatalyzing multi-metallic oxide catalyst
05/08/2002CN1347755A Multi-metallic oxide catalyst accelerated with Zn and/or Ga
05/08/2002CN1084327C Process for producing amino-phenol
05/08/2002CN1084306C Process for producing mixed oxide of vanadium, antimony and iron
05/08/2002CN1084228C Ammoxidation catalyst composition and process for producing acrylonitrile or methacrylonitrile using with the same
05/08/2002CN1084221C Process for producing ammoxidation catalysts for fluidized-bed or moving-bed reactor
05/07/2002US6384283 Method for preparing aminonitrile and diamine
05/07/2002US6384263 Reacting 2-alkenylnitrile or a aklenylnitrile which under reaction conditions isomerizes to form a 2-alkenylnitrile, in presence of base with benzyl alcohol to form a 3-benzyloxyalkanenitrile adduct and then partially hydrogenating
05/07/2002US6383978 Promoted multi-metal oxide catalyst
05/02/2002WO2002042244A2 Synthesis of chiral intermediates useful in preparing pharmacologically active compounds
05/02/2002WO2002034710A2 Novel intermediates for use in retinoid synthesis
05/02/2002WO2002013963A3 Improved catalyst for the manufacture of acrylonitrile
05/02/2002WO2001062082A3 Use of phenylethylamine derivatives for the anitmicrobial treatment of surfaces
05/02/2002US20020052531 Hydroformylation of olefins using supported bis (phosphorus) ligands
05/02/2002US20020052507 Process for making 3-amino-2-chloro-4-methylpyridine
05/02/2002EP1201655A2 Process for the preparation of non-steroidal glucocorticoid receptor modulators
05/02/2002EP1201647A2 Process for producing 4-cyano-4oxobutanoate and 4-cyano-3-hydroxybutanoate
05/02/2002EP1201636A2 Method for producing unsaturated carboxylic acids and unsaturated nitriles
05/02/2002EP1200394A1 Process for preparing acids via alpha-chloroepoxy esters
05/02/2002EP1200392A1 Process for the preparation of cyclopropylglycine
05/02/2002EP1200388A1 Method for preparing cyclohexane carboxylic acids
05/02/2002DE10052462A1 New diaryl-anellated bicyclo phosphorus, arsenic and antimony compounds are used as hydroformylation, hydrocyanation, carbonylization, hydrogenation, polymerization or metathesis catalyst or ligand in metal complex catalyst
05/02/2002CA2427473A1 Synthesis of chiral intermediates useful in preparing pharmacologically active compounds
05/01/2002CN1346822A Process for producing unsaturated carboxylic acid and unsaturated nitrile
05/01/2002CN1346702A Cocatalytic polymetallic oxide catalyst
05/01/2002CN1346701A Iridium and/or samarium promoted polymetallic oxide catalyst
05/01/2002CN1346700A Cocatalytic polymetallic oxide catalyst
05/01/2002CN1346699A Halogen promoted polymetallic oxide catalyst
05/01/2002CN1346698A Calcination
04/2002
04/30/2002US6380421 Hydrocyanation process
04/30/2002US6380420 Catalyst metathesis of acrylonitrile; hydrogenation
04/30/2002US6379586 Hydrocarbon partial oxidation process
04/25/2002WO2001068583A3 Process for the carbonylation of ethylenically unsaturated compounds
04/25/2002DE10051316A1 Verfahren zur Herstellung von mono-, bi- oder polyfunktionellen Biarylen Process for the preparation of mono-, bi- or polyfunctional biaryls
04/24/2002EP1199302A2 Continuous cyanoalkylation process of compounds having one or more NH functions
04/24/2002EP1199292A1 Process for the production of mono-, bi- or polyfunctional biaryls
04/24/2002CN1083409C Monomer recovery process for contaminated polymers
04/23/2002US6376714 Forming diamine or aminonitrile using hydrogenation catalyst
04/18/2002WO2002030901A1 Process for making 3-amino-2-chloro-4-methylpyridine
04/18/2002WO2002030854A2 Hydrocyanation method for ethylenically unsaturated organic compounds
04/18/2002WO2002010432A3 Triphosphate oligonucleotide modification reagents and uses thereof
04/18/2002WO2002010095A3 Process for the cyanation of aldehydes
04/18/2002US20020045748 Pentenenitrile reacted with carbon monoxide and water or alcohol in the presence of a source of Group VIII metal and a bidentate phosphine, arsine and/or stibine ligand to form cyanovaleric acid or ester
04/18/2002US20020043455 Process for the purification and recovery of acetonitrile
04/18/2002CA2425384A1 Hydrocyanation method for ethylenically unsaturated organic compounds
04/17/2002EP1196376A1 Compounds from epoxidised nitriles, process for their production and use as cleaning agents
04/17/2002EP1196375A1 Solid phase nitrile synthesis
04/17/2002EP1196373A1 3-amino-2-benzyl-1-phenyl-propane derivatives
04/17/2002EP0944585B1 Monoolefinic c 5-mononitriles, method for the production and the use thereof
04/17/2002CN1345306A Improved process for recovery of acrylonitrile and methacrylonitrile
04/17/2002CN1345305A Method of preparing granular N-alkyl-ammonium acetonitrile salts
04/17/2002CN1345304A Substituted aniline compounds
04/17/2002CN1344584A Method for production of oxide catalyst for oxidation or ammoxidation
04/17/2002CN1082946C Process and catalyst compositions for hydrocyanation of monoolefins
04/16/2002US6372939 Hydroformylating 3-pentenenitrile in presence of catalyst comprising group viii element to produce mixture of formylvaleronitriles, oxidizing to cyanovaleric acids, catalytically hydrogenating to 6-aminocaproic acid and isomers
04/16/2002US6372921 Process for producing isochromanones and intermediates thereof
04/16/2002US6372908 Preparation of vanadium antimonate based catalyst using sno2h2o
04/11/2002WO2002028822A2 Process for producing fluorinated dicyanobenzene
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