Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
02/2014
02/19/2014CN102757414B Preparation method of eseitalopram oxalate
02/19/2014CN102432455B Method for preparing crocetin and crocin
02/19/2014CN102372624B Method for extracting sodium gulonate from sodium gulonate fermented liquid
02/18/2014US8653303 Processes for preparing acetic anhydride
02/18/2014CA2591796C A process for the hydrogenation of a lactone or of a carboxylic acid or an ester having a gamma-carbonyl group
02/18/2014CA2590833C Process and catalyst for the manufacture of acetic acid
02/18/2014CA2500742C Compositions of fgf-18 and hyaluronic acid for stimulating cartilage production and treating osteoarthritis
02/13/2014WO2014024782A2 Catalyst for production of acrylic acid from glycerin, and method for producing same
02/13/2014WO2014024151A1 Labeled chiral alpha-hydroxy ketoacid derivatives, a process for preparing said derivatives and their use
02/13/2014US20140046093 Process for charging a longitudinal section of a catalyst tube
02/13/2014US20140046092 Removing hydrocarbon impurities from acetic acid production intermediate
02/13/2014US20140046088 Method for producing aminothiazole derivative and production intermediate
02/13/2014US20140046081 Method for Producing Unsaturated Compounds
02/13/2014US20140046077 Process For The Production Of Anhydrides
02/13/2014DE102005033732B4 Trennung stereoisomerer N,N-Dialkylamino-2-alkyl-3-hydroxy-3-phenyl-alkane Separation of stereoisomeric N, N-dialkylamino-2-alkyl-3-hydroxy-3-phenyl-alkanes
02/12/2014EP2695875A1 Improved method for the oxidation of alkyl aromatic hydrocarbons
02/12/2014EP2695873A1 Labeled chiral alpha-hydroxy ketoacid derivatives, a process for preparing said derivatives and their use
02/12/2014EP2694467A1 Process for the preparation of alkanoic acid esters in a carbonylation process using palladium bidentate biphosphate ligands
02/12/2014EP2694465A1 Ortho-fluoro substituted compounds for the treatment of metabolic diseases
02/12/2014EP2694464A1 Process for the manufacture of alpha, alpha-branched carboxylic acid vinyl esters
02/12/2014CN203429087U Screw rod conveying type device for concentrating dilute formic acid
02/12/2014CN203429086U Device for circularly concentrating dilute formic acid through phosphoric acid
02/12/2014CN203429085U Device for concentrating dilute formic acid and co-producing phosphoric acid by use of phosphorus pentoxide
02/12/2014CN203425825U Kettle liquid circulating device for preparing glyoxylic acid through nitric acid air oxidation process
02/12/2014CN203425801U Air flow circular reaction device for preparing glyoxylic acid through nitric acid air oxidation process
02/12/2014CN103582624A Method for manufacturing polyoxyethylene alkyl ether acetic acid
02/12/2014CN103570715A Salt of uncaria alkaloid derivative
02/12/2014CN103570685A Salt of 6,7-dimethoxyquinoline derivative
02/12/2014CN103570679A Dabigatran etexilate gluconate, preparation method and application thereof
02/12/2014CN103570675A Salt of tetrahydroquinazolinone derivatives
02/12/2014CN103570650A Technological process for continuously producing succinic anhydride and co-producing succinic acid through maleic anhydride hydrogenation
02/12/2014CN103570626A Salt of dihydropyrimidine derivative
02/12/2014CN103570608A Salt of dihydropyridine derivative
02/12/2014CN103570547A Industrial synthesis method of isopropyl tanshinol
02/12/2014CN103570546A Industrial synthesis method of bornyl tanshinol
02/12/2014CN103570530A Preparation method of anidulafungin side chain intermediate
02/12/2014CN103570529A Method for preparing anise acid with anise camphor
02/12/2014CN103570528A Method for preparing hydroxy acid and derivatives thereof, as well as propylene glycol, propanol, ethylene glycol and ethanol from CO or CO2
02/12/2014CN103570527A Preparation method for potassium sorbate
02/12/2014CN103570526A Novel biomass supercritical/subcritical hydrolysis reactor
02/12/2014CN103570525A Method for refining long-chain dibasic acid
02/12/2014CN103570524A Sodium intermediate
02/12/2014CN103570523A Method for producing 95% of sodium formate
02/12/2014CN103570522A Method for producing 99.5% of sodium formate
02/12/2014CN103570485A Method for preparation of propylene, ethylene, glyoxylic acid, propyl alcohol, ethyl alcohol, propylene glycol, malonic ester and the like by reductive coupling reaction of CO2 or CO
02/12/2014CN102584566B Method for preparing glycollic acid
02/12/2014CN102553556B Regeneration method of activated carbon for treating ibuprofen decolorization process
02/12/2014CN102391098B Method for synthesizing sodium diacetate crystal in one step
02/12/2014CN102363593B Technology for coproducing mercaptoacetic acid and dichloroacetic acid by utilization of chloroacetic acid mother liquor and device thereof
02/12/2014CN102351682B Preparation method for sebacic acid
02/12/2014CN102329212B Refining method for long-chain binary acid
02/12/2014CN102070441B Method for catalytic hydrorefining of terephthalic acid
02/12/2014CN101638362B Method for comprehensively using nisin fermentation waste solution
02/11/2014US8648005 Method for preparing catalyst
02/06/2014WO2014022197A1 Method for preparation of modified poly(alkylene terephthalate) employing titanium-containing catalyst complex
02/06/2014WO2014021560A1 Method for continuously recovering (meth)acrylate, and recovery apparatus
02/06/2014WO2014020281A1 Process for preparing a carboxylic acid from a diol or from an epoxide by oxidative cleavage
02/06/2014WO2014020153A1 Conversion of carbohydrates to levulinic acid esters
02/06/2014WO2014020038A1 Process for preparing spiro[2.5]octane-5,7-dione
02/06/2014US20140039218 Method And Catalyst Composite For Production Of Vinyl Acetate Monomer
02/06/2014US20140039217 Process for the Production of 4-Chloroacetoacetyl Chloride, 4-Chloroacetoacetic Acid Esters, Amides and Imides
02/05/2014EP2691361A1 Synthesis of diacids
02/05/2014EP2691171A1 Activated carbon-metal organic framework composite materials with enhanced gas adsorption capacity and process for the preparation thereof
02/05/2014CN103562212A Method for manufacturing phosphonocrotonic acid derivative
02/05/2014CN103562171A Process for preparing methacrylic acid
02/05/2014CN103562170A Method for producing bicyclic compound via claisen rearrangement
02/05/2014CN103554477A Semicondcutor nanoparticle capping agents
02/05/2014CN103553910A Method for synthesizing o-ethoxybenzoic acid from salicylic acid
02/05/2014CN103553909A Method for synthesizing o-ethoxybenzoic acid from salicylic acid and acetone
02/05/2014CN103553908A Preparation method of o-ethoxybenzoic acid
02/05/2014CN103553907A Preparation method of oil soluble organic molybdenum additive
02/05/2014CN103553906A Method of recovering polyimide raw material by hydrolyzing polyimide waste thin film by ammonia water
02/05/2014CN103553905A Unsaturated alicyclic carboxylic acid and preparation method and application thereof
02/05/2014CN103553904A Preparation method of high-purity 2, 4-D
02/05/2014CN103553903A Novel process for extracting not smaller than 98% of natural ferulic acid from rice bran oil processing leftovers
02/05/2014CN103553902A Preparation method of rice bran derived natural ferulic acid
02/05/2014CN103553901A Preparation method of soluble calcium citrate
02/05/2014CN103553900A Synthesis method of 2,4,5-trifluorophenylacetic acid
02/05/2014CN103553899A Method for recovering fumaric acid from phthalic anhydride wastewater
02/05/2014CN103553898A Method for producing (meth)acrylic acid anhydride, method for storing (meth)acrylic acid anhydride, and method for producing (meth)acrylate ester
02/05/2014CN103553897A Dicarboxylic acid refinement separation and drying method
02/05/2014CN103553896A Method for synthesizing o-ethylsalicylic acid
02/05/2014CN103551161A Acrylic acid catalyst regeneration method
02/05/2014CN102617338B Preparation method of p-trifluoromethyl salicylic acid
02/05/2014CN102502506B Method for simultaneously synthesizing chlorine dioxide and glyoxylic acid by catalyzing bromide
02/05/2014CN102351684B Preparation method of 2-phenylpropionic acid
02/05/2014CN102249894B Method for filtering and clarifying citric acid fermentation broth
02/05/2014CN102177129B Method for preparing ammonium salts of fumaric or succinic acid
02/05/2014CN101723826B Preparation method of trans-D-chrysanthemic acid
02/05/2014CN101260034B Improved process for converting alkanes to unsaturated carboxylic acids
02/04/2014US8642803 Preparation of ethylenically unsaturated carboxylic salts by carboxylation of alkenes
02/04/2014US8642802 Process for the preparation of halogenated benzoic acid derivatives
02/04/2014US8642795 Process for producing a conjugated unsaturated fatty acid
02/04/2014US8642348 Direct method and reagent kits for fatty acid ester synthesis
01/2014
01/30/2014WO2014016146A1 Method for producing alkoxyphenol and alkoxy-hydroxybenzaldehyde
01/30/2014WO2014016145A1 Method for producing alkoxy-hydroxybenzaldehyde that is substantially free of alkyl-alkoxy-hydroxybenzaldehyde
01/30/2014US20140031588 Method for Purifying Difluoroacetic Acid Chloride
01/30/2014US20140031585 Steam re-calcination of mixed metal oxide catalysts
01/30/2014US20140031584 Ozonolysis Operations for Generation of Reduced and/or Oxidized Product Streams
01/30/2014US20140031583 Olefin conditioning in a fast catalytic pyrolysis recycle process
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