Patents
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Patents for C07C 253 - Preparation of carboxylic acid nitriles (14,307)
11/2008
11/19/2008EP1697298B1 Process for producing hexamethylenediamine and aminocapronitrile from adiponitrile, wherein the hexamethylenediamine contains less than 200 ppm tetrahydroazepine
11/19/2008CN101309897A Method for making hexamethylene diamine and aminocapronitrile
11/19/2008CN101307014A Method for synthesizing N-(1-nitrile-1,2-dimethyl propyl)-2-(2,4-dichloro phenoxyl)propionamide
11/19/2008CN101307013A Aromatic diamine with phthalonitrile pendant group, preparation method thereof and polyimides or polyamide prepared therefrom
11/19/2008CN101307012A 2-(2,2- dibrom ethenyl)-4-fluorobenzonitrile method for synthesizing same
11/19/2008CN101307011A Method of preparing N-ethyl-N-cyanoethyl aniline
11/19/2008CN101306971A Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon
11/19/2008CN101306376A Tellurium containing alkane ammoxidation reaction catalyst
11/19/2008CN101306373A High load fluid bed catalyst for acrylonitrile production
11/19/2008CN101306372A Fluid bed catalyst for acrylonitrile production
11/18/2008US7453012 Continuous process for the hydrogenation of nitriles or nitro compounds to amines
11/18/2008CA2393655C Method for the preparation of enantiomerically enriched compounds
11/18/2008CA2219150C Method of making (s)-3-(aminomethyl)-5-methylhexanoic acid
11/13/2008US20080281120 Method for Producing Linear Pentenenitrile
11/13/2008US20080281119 Separation of Nickel(0) Complexes and Phosphorus-Containing Ligands from Nitrile Mixtures
11/12/2008EP1467962B1 Continuous method for hydrogenation of nitriles or nitrated compounds to give amines
11/12/2008CN100432048C Recovery method and polymerization system of non-reaction monomer in polymerization of acrylic monomer
11/12/2008CN100432038C Method for producing nitrile compound, carboxylic acid compound or carboxylate compound
11/11/2008US7449426 Mixed oxide formed by calcining a precursor of compounds of vanadium, tungsten, bismuth, and optionally sodium, cesium, magnesium, calcium, barium, boron, yttrium, indium, aluminum, gallium, tin, titanium, silicon, zirconium, germanium, niobium and/or tantalum; may also contain BiVO4 or Bi2WO6
11/06/2008WO2008087656B1 Process for the preparation of unsymmetrically substituted biphenyl compounds
11/06/2008US20080275266 Method for the Production of Pentene Nitriles From N-Butane
11/05/2008CN100430375C Method for preparing isobutyronitrile from isobutyl alcohol
11/05/2008CN100430345C Method for producing compounds having CF2O bridge
11/05/2008CN100430344C Bidentate ligands of diolefin telomerization
11/05/2008CN100430129C Catalyst for preparing isobutyronitrile by use of isobutyl alcohol
10/2008
10/30/2008WO2008073411A3 Process for the synthesis of 3-hydroxyglutaronitrile
10/29/2008CN101296899A Method for the production of beta-aminopropionic acid derivatives
10/29/2008CN100429208C Process for prepn. of racemic citalopram and/or S-or R-citalopram by separation of mixture of R-and S-citalopram
10/28/2008US7442825 Making nitrile compounds from ethylenically unsaturated compounds
10/28/2008US7442345 Reactor apparatus
10/22/2008EP1856033B1 Improved method for producing bi-functional ammonium nitriles
10/22/2008CN100427495C Phosphite derivative, its preparing process, and catalyst precarsor containing phosphite
10/22/2008CN100427493C Ligands for pnicogen chelate complexes with a metal of subgroup viii and use of the complexes as catalysts for hydroformylation, carbonylation, hydrocyanation or hydrogenation
10/22/2008CN100427462C Process for preparing 2,4-difluoro benzonitril
10/21/2008US7439381 Hydrocyanation method
10/21/2008US7439368 Process for producing 3-acylaminobenzofuran-2-carboxylic acid derivative
10/16/2008WO2008123975A1 Mixed metal oxide catalysts and catalytic conversions of lower alkane hydrocarbons
10/16/2008WO2008123974A1 Improved mixed metal oxide catalysts and process for (amm) oxidation of lower alkane hydrocarbons
10/16/2008WO2008082502A3 Process for preparing 2-amino-5-cyanobenzoic acid derivatives
10/15/2008EP1763506B1 Method for producing nitriles by elimination of water from aldehyde oximes with alkylphosphonic anhydrides
10/15/2008EP1716108B1 Method for the separation of intermediates which may be used for the preparation of escitalopram
10/15/2008CN101284802A Polysubstituted cyclohexane and process for high selectively synthesizing polysubstituted cyclohexane by catalytic action of glyoxaline
10/15/2008CN101284801A Production device for acrylic nitrile and method for controlling temperature of reactor
10/15/2008CN101284237A Preparation method of catalyst for acrylonitrile fluid bed
10/15/2008CN101284131A Application of cyanoacrylate glycol ester in preparing medicine carrier
10/15/2008CN100425609C N-heteroarylnicotinamide derivatives
10/14/2008US7435844 Fungicides; 2-methoxyacrylic acid esters or amides, 2-substituted with o-(phenoxymethyl)phenyl- groups, e.g., methyl (E)-2-{2-[3,5-dichloro-4-(3,3-dimethylbutoxy)phenoxymethyl]phenyl}-3-methoxyacrylate; agriculture, horticulture, animal husbandry
10/09/2008WO2008121074A1 Method of producing an optically active cyanohydrin derivative
10/09/2008WO2008119793A1 Process for the preparation of entacapone and intermediates thereof
10/09/2008US20080249328 Mixed metal oxide catalysts and catalytic conversions of lower alkane hydrocarbons
10/09/2008US20080248947 Mixed metal oxide catalysts and catalytic processes for conversions of lower alkane hydrocarbons
10/09/2008CA2681027A1 Process for the preparation of entacapone and intermediates thereof
10/08/2008EP1978014A1 Process for the preparation of entacapone and intermediates thereof
10/08/2008EP1976824A1 A process for the preparation of entacapone form-a
10/08/2008EP1868988B1 Method for producing saturated nitriles
10/08/2008EP1444193B1 Process for the preparation of tertiary amines from primary amines and nitriles
10/08/2008CN101279931A Production process of CNC
10/08/2008CN101279901A Honokiol series derivates, preparation and use thereof
10/08/2008CN101279265A Fluidized bed catalyst for preparing acrylonitrile
10/08/2008CN101279264A High load fluidized bed catalyst for preparing acrylonitrile
10/08/2008CN101279252A Catalysts for the ammoxidation of alkanes
10/08/2008CN100423836C Process for producing metal oxide catalyst
10/07/2008US7432404 Process for removal of acrolein from acrylonitrile product streams
10/02/2008WO2008119015A2 Synthesis of thiohydantoins
10/02/2008US20080242886 Continuous Method for the Production of Linear Pentene Nitriles
10/02/2008US20080242885 Method for Hydrocyanation
10/02/2008US20080242884 Process for Preparing Nitriles by Elimination Reactions
10/02/2008US20080242883 Method for the Hydrocyanation of Butadiene
10/02/2008US20080242876 Enantioselective hydrogenation of compounds such as (Z)-[-(3-;Benzyloxy-4-methoxyphenyl)]-2-ethoxyacrylic acid in presence of catalyst comprising a catalyst ligand having a metallocene group with a chiral phosphorus or arsenic substituent to provide substituted propionic acids
10/01/2008EP1581481B1 Improved neutralization of isophorone nitrile synthesis products
10/01/2008CN101274903A Selective manufacture of nn'-bis(cyanoethyl)-12-ethylenediamine and nn'-bi-(3-aminopropyl)-12-ethylenediamine
10/01/2008CN100422144C Method for preparing diethylacetonitrile in imino group
10/01/2008CN100421794C Mo-V-M-Nb-X oxide catalyst for selective hydrocarbon oxidation synthesied by water heat
10/01/2008CN100421790C Method for preparing a catalyst for partial oxidation of acrolene
09/2008
09/30/2008US7429621 Cyclone reactor and associated methods
09/25/2008WO2008113927A1 Method for the synthesis of acrylonitrile from glycerol
09/25/2008US20080234513 Oxide Catalyst for Oxidation or Ammoxidation
09/25/2008CA2676669A1 Method for the synthesis of acrylonitrile from glycerol
09/24/2008EP1332177B1 Nitrile process
09/24/2008CN101270064A Violanthrone analogue and uses thereof
09/24/2008CN101270063A Method for preparing high purity solid cyanoacetic acid
09/18/2008WO2008111521A1 Method for producing iodizing agent and method for producing aromatic iodine compound
09/18/2008WO2008087656A3 Process for the preparation of unsymmetrically substituted biphenyl compounds
09/18/2008US20080227998 Method For Producing 3-Pentenenitrile
09/18/2008US20080227214 Method for the Hydrocyanation of 1,3-Butadiene
09/17/2008CN101268035A Method for the hydrogenation of nitriles to form primary amines or amino nitriles and suitable catalysts for the process
09/17/2008CN101267883A Full catalyst, production thereof, and use thereof in an ammoxidation process
09/17/2008CN101265216A 4-(substituted cyano)-phenylhydrazone derivatives and synthesis method thereof
09/17/2008CN101265215A Method for preparing (S)-citalopram intermediate S-type glycol
09/17/2008CN101265213A Method for preparing alkylcyanophenyl
09/12/2008WO2008107397A1 METHOD FOR THE PRODUCTION OF β-KETONITRILES
09/12/2008WO2008078340B1 Process for the separation of 4-bromomethyl-2'-substituted biphenyls from 4,4,-dibromomethyl-2'-substituted biphenyls
09/12/2008WO2007077572A8 A process for the preparation of entacapone form-a
09/12/2008CA2679287A1 Method for the production of .beta.-ketonitriles
09/11/2008US20080221351 Hydrocyanating over a nickel(0) catalyst, removing the catalyst, regenerating catalyst in the stream 1 by reductive nickel catalyst synthesis with addition of fresh ligand, second process of catalytic hydrocyanating 3-pentenenitrile producing adiponitrile
09/11/2008US20080221350 Coupling 4-bromobenzonitrile with acetophenone to give 4-(2-oxo-2-phenylethyl)benzonitrile in the presence of a Bronsted base and a transition metal catalyst with a sulphonated phosphane ligand
09/10/2008EP1368302B1 Novel amino dicarboxylic acid derivatives
09/10/2008CN100417433C Catalytic oxidation process for treating tail gas from absorption tower of acrylonitrile installation
09/04/2008WO2008104583A1 Method for producing ethyleneamines
09/04/2008WO2008104582A2 Novel method for producing teta by means of eddn
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