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)
06/2003
06/04/2003CN1422240A Method for the purification of a crude acrylic acid melt
06/04/2003CN1422178A Carbonylation catalyst supported on a carbonized polysulfonated divinylbenzene-styrene copolymer
06/03/2003US6573404 Intermediates in industrial organic synthesis, e.g. in the preparation of fine chemicals, dyes and crop-protection compositions
06/03/2003US6573403 With reduced formation of carbonyl impurities, especially acetaldehyde and acetone, by carbonylation of methanol and/or dimethyl ether and/or methyl acetate in the presence of a rhodium catalyst and a methyl halide
06/03/2003US6573024 Ammonium salt of organic acid and resist composition containing the same
06/03/2003CA2140657C Static condition process for the preparation of phosphorus/vanadium oxidation catalyst
05/2003
05/30/2003WO2003044125A2 A process to produce a dilute ethylene stream and a dilute propylene stream
05/30/2003WO2003043996A1 A method for preparing of chiral 2,2-dimethylcyclopropanecarboxyl derivatives
05/30/2003WO2003043970A1 Method of recovering polymerization inhibitor and process for producing acrylic acid
05/30/2003WO2003043969A1 Method for supplying atmosphere gas
05/30/2003WO2003043968A1 Process for producing (meth)acrylic acid compounds
05/30/2003WO2003043624A1 Dual inhibitors of adipocyte fatty acid binding protein and keratinocyte fatty acid binding protein
05/30/2003WO2003018552A3 Aromatic and heteroaromatic acid halides for synthesizing polyamides
05/29/2003US20030100794 Mixed oxides of aluminum, molybdenum, vanadium, tungsten or manganese and other oxides
05/29/2003US20030100793 Method for producing aliphatic carboxylic acids from aldehydes
05/29/2003US20030100781 Noncatalytic oxidation
05/29/2003US20030100780 Skeletal isomerization of fatty acids
05/29/2003US20030100779 Process for preparing pentacene derivatives
05/29/2003US20030100516 Analgesic agent
05/29/2003US20030098042 Iron oxide deposits may be removed from the surface of a titanium component by contacting the titanium component with a solvent mixture of organic acid and hydrohalide acid, which can be recycled after removal from the titanium
05/28/2003EP1314714A2 Method for hydrogenating benzene polycarboxylic acids or derivatives thereof by using a catalyst containing macropores
05/28/2003EP1314711A1 Process for preparation of fluorinated ketones
05/28/2003EP1313870A2 Method for the improved production and isolation of trans-dihydroxycyclohexadiene carboxylic acids and/or derivatives thereof and a genetically modified organism suitable for the above
05/28/2003EP1313688A1 Tmp/steam pressure filtration
05/28/2003EP1313554A1 Process and device for carrying out reactions in a reactor with slot-shaped reaction spaces
05/28/2003EP1123266B1 Method for drying phenoxymethylbenzoic acids
05/28/2003EP1068174B1 Method for producing acrylic acid and acrylic acid esters
05/28/2003EP1066239B1 Method for producing acrylic acid and acrylic acid esters
05/28/2003EP1002787B1 Process for the purification of (meth)acrylic acid
05/28/2003EP0913386B1 Process for separating and purifying alkali metal salts of hydroxynaphthalenecarboxylic acids
05/28/2003EP0836587B1 Process for separating pivalic acid from spent reaction mixtures
05/28/2003CN1420860A Process for carbonylation of ethylenically unsaturated compounds
05/28/2003CN1420858A Method for oxidising hydrocarbons into acids
05/28/2003CN1420857A Method for producing carboxylic acids by carbonylation of oleffins
05/28/2003CN1419965A Electric activation catalysis
05/27/2003US6570020 Reacting 2-(3,3,3-trifluoropropyl),2-hydroxy,4a-benzyl-7-carboxy-1,2,3,4,4a,9,10,10a -octahydrophenanthrene with 2-methyl-3-(aminomethyl)pyridine to form the corresponding pyridyl-substituted amide at position 7
05/22/2003WO2003042151A1 Method for producing (meth) acrylic acid esters of polyhydric alcohols
05/22/2003WO2003042135A2 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions
05/22/2003WO2003041833A1 Device for performing the purifying separation of crystals out of their suspension in a contaminated crystal melt
05/22/2003WO2003041832A1 Method for performing the purifying separation of crystals out of their suspension in a mother liquor
05/22/2003US20030097017 Inhibitor composition for stabilizing substances capable of free radical polymerization
05/22/2003US20030097010 Cyclizing at least one substituted bis(benzyl)phthalic acid to form the corresponding substituted pentacenedione by using an acid composition comprising trifluoromethanesulfonic acid to produce pentacene derivative
05/22/2003US20030096802 Pentanoic acid derivatives
05/22/2003US20030094398 Deethanizing cracked gas stream to produce a C2-stream and a C3+ stream; hydrogenating acetylene to produce ethylene; hydrogenating methylacetylene and propadiene to propylene and propane
05/22/2003US20030094381 Electroactive catalysis
05/22/2003CA2466449A1 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions
05/21/2003EP1312411A2 Electroactive catalysis
05/21/2003EP1311468A1 Fluorinated alkanoic acid purification process
05/21/2003EP1311467A1 Method for producing phthalic anhydride
05/21/2003EP1311466A1 Method for the vapour-phase partial oxidation of aromatic hydrocarbons
05/21/2003EP1198446B1 Method for separating and purifying an aqueous mixture that mainly consists of acetic acid and formic acid
05/21/2003EP1124785B1 A process for the preparation of alpha-arylalkanoic acids
05/21/2003EP1124783B1 Method for producing carboxylic acid chlorides
05/21/2003EP0991616B1 METHOD FOR PRODUCING MEDICAMENTS CONTAINING HMG-CoA-REDUCTASE INHIBITORS
05/21/2003EP0985648B1 Gas-phase oxidation process and process for the preparation of phthalic anhydride
05/21/2003EP0857170B1 Method and apparatus for purifying crude terephthalic acid
05/21/2003CN1419531A Method of removing organic iodides from organic media
05/21/2003CN1419473A Catalyst for vapor-phase catalytic oxidation or vapor-phase catalytic ammoxidation of propane or isobutane
05/21/2003CN1419466A Sublimation purifying method and apparatus
05/21/2003CN1418860A Method for preparing 2-phenylacrylic acid and ester thereof
05/21/2003CN1109013C Separation of isomers of chloro-benzoic anhydride
05/21/2003CN1109012C Improved method for purifying acrylic acid
05/20/2003US6566551 Method for preventing effluent gas pipe from blocking
05/20/2003US6566548 Molecular compounds containing novel carboxylic acid derivatives as the constituent compound
05/20/2003US6565754 Process for the production and purification of aromatic acids
05/15/2003WO2003040149A2 Asymmetric catalysis based on chiral phospholanes and hydroxyl phospholanes
05/15/2003WO2003040079A1 Method of collecting acrylic acid
05/15/2003WO2003040078A1 Method for production of formic acid formates
05/15/2003WO2003040073A1 Alkyl(en)ylglycerinether carboxylic acids
05/15/2003WO2003040002A1 Storage tank for easily polymerizable compound and storage method
05/15/2003WO2003039745A1 Polyoxometallate catalysts and method for the production of carboxylic acids by catalysed partial oxidation of alkanes
05/15/2003WO2003039744A1 Composite oxide catalyst and method for preparation thereof
05/15/2003WO2003039729A1 Method for the production of particles
05/15/2003WO2003039513A1 Method for the formation of ibuprofen crystals
05/15/2003US20030092939 Preparation of metal formate/formic acid mixtures
05/15/2003US20030092938 Catalytic gas-phase oxidation; absorbing (meth)acrylic acid from mixed gas; separating, refining, recovering (meth) acrylic acid from (meth)acrylic acid containing liquid; recirculating (meth)acrylic acid in a vent gas
05/15/2003US20030092937 Extraction process for recovery of acrylic acid
05/15/2003US20030092936 For reacting ethanol and oxygen, to a produce acetic acid or acetic acid and ethyl acetate; performance
05/15/2003US20030092930 Substituted fluoroaromatics, process for preparing them and their use
05/15/2003US20030092929 Using halogenated xylene compound; chemical intermediate for quinolone antibiotics
05/15/2003US20030092142 Process for the preparation of chiral alpha-hydroxycarboxylic acids
05/15/2003US20030089491 Shell-and-tube type heat exchanger and method for production of (meth) acrylic acid by use of the exchange
05/15/2003CA2464762A1 Method for production of formic acid formates
05/15/2003CA2464756A1 Method for the formation of ibuprofen crystals
05/15/2003CA2461030A1 Polyoxometallate catalysts and method for the production of carboxylic acids by catalysed partial oxidation of alkanes
05/14/2003EP1310477A2 Process for the preparation of chiral alpha-hydroxycarboxylic acids
05/14/2003EP1310172A1 Process for the preparation of metalformate-formic acid mixtures
05/14/2003EP1309552A1 Compounds and inhibitors of phospholipases
05/14/2003EP1309539A1 Process for the synthesis of fluoroorganic compounds
05/14/2003EP1309538A2 Method for the production of trifluoroethoxy-substituted benzoic acids
05/14/2003EP1309537A2 Method for catalytically producing organic substances by partial oxidation
05/14/2003EP1309536A1 Gold catalyst for selective oxidation
05/14/2003EP1309531A1 Derivatives of 4-(trifluoromethyl)-phenol and 4-(trifluoromethylphenyl)-2-(tetrahydropyranyl) ether and method for producing the same
05/14/2003EP1202785B1 Column chromatography separation method
05/14/2003EP1144354B1 Anhydride stabilization
05/14/2003EP1069945B1 Catalyst and process for the oxidation of ethane and/or ethylene
05/14/2003CN1418184A Method of chemical recycling of polyethylene terephthalate waste
05/14/2003CN1417193A Liquid phase catalytic mesitylene air oxidizing process of preparing benzenetricarboxylic acid
05/14/2003CN1417192A Establishing method of dynamic model of liquid phase catalytic paraxylene oxidizing reaction
05/14/2003CN1417191A Prepn of dibromochrysanthemic acid
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