Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
05/2002
05/07/2002US6383976 Multimetal oxide with molybdenum, bismuth, iron metal oxides
05/07/2002US6383973 Complex oxide catalysts and process for producing (meth) acrolein and (meth) acrylic acid
05/07/2002CA2361156A1 Production method of 2-cyclohexyl-2-hydroxy-2-phenylacetic acid, intermediate therefor and production method thereof
05/02/2002WO2002034387A1 Catalyst and method for producing maleic anhydride
05/02/2002WO2002034258A1 Use of hydroxyeicosatetraenoic acid derivatives in intraocular surgery
05/02/2002WO2001096283A3 Hiv integrase inhibitors
05/02/2002WO2001096271A3 Method for producing acrolein and/or acrylic acid
05/02/2002WO2001066508A3 Process for the recovery of organic acids from aqueous solutions
05/02/2002WO2001066507A3 Process for the branching of saturated and/or unsaturated fatty acids and/or alkyl esters thereof
05/02/2002WO2001042185A3 Method for producing o-chloromethyl benzoic acid chlorides
05/02/2002WO2001042183A3 Method for producing o-chloromethyl benzenecarbonyl chlorides
05/02/2002US20020052531 Hydroformylation of olefins using supported bis (phosphorus) ligands
05/02/2002US20020052529 Catalysts for methacrylic acid production and process for producing methacrylic acid
05/02/2002EP1202017A2 Apparatus & process for heat exchange with fluid beds
05/02/2002EP1201728A2 Method for cutting polymer chains and method for producing chemical raw materials
05/02/2002EP1201655A2 Process for the preparation of non-steroidal glucocorticoid receptor modulators
05/02/2002EP1201638A1 Photocurable composition containing iodonium salt compound
05/02/2002EP1201637A2 Process for the preparation of unsaturated carboxylic acids
05/02/2002EP1201636A2 Method for producing unsaturated carboxylic acids and unsaturated nitriles
05/02/2002EP1201631A2 Oxidation process for the production of alkenes and carboxylic acids
05/02/2002EP1201630A2 Oxidation process for the production of alkenes and carboxylic acids
05/02/2002EP1201140A1 Calcium double salts, their synthesis and use as preservatives
05/02/2002EP1200394A1 Process for preparing acids via alpha-chloroepoxy esters
05/02/2002EP1200390A1 Production of n-substituted 2,7-dialkyl-4-hydroxy-5-amino-8-aryl-octanoylamides
05/02/2002EP1200384A1 2-alkyl-5-halogen-pent-4-ene carboxylic acids and their production
05/02/2002EP1200383A1 Process for purifying polycarboxylic acids
05/02/2002EP1200382A1 Method of producing carboxylic acids by carbonylation of olefins
05/02/2002DE10053494A1 Katalysator und Verfahren zur Herstellung von Maleinsäureanhydrid Catalyst and process for the production of maleic anhydride
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
05/02/2002CA2419373A1 Use of hydroxyeicosatetraenoic acid derivatives in intraocular surgery
05/01/2002CN1347399A Process for shaping of alkaline (earth) metal benzoate particles
05/01/2002CN1347398A Salts of asiatic and madecassic acid suitable for preparation of pharmaceutical and cosmetic compositions
05/01/2002CN1347397A Methods of replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
05/01/2002CN1347396A Hydrocarbon, alcohol and/or ketone oxidation method
05/01/2002CN1347395A Method for producing carboxylic acids from olefins
05/01/2002CN1347342A Vanadyl pyrophosphate oxidation catalyst
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
05/01/2002CN1083877C Process for producing petrochemicals
05/01/2002CN1083827C 4-fluorosalicylic acid derivs. and process for producing same
05/01/2002CN1083826C One-step lactic acid purification process for preparing high-purity heat-stable lactic acid and apparatus thereof
05/01/2002CN1083734C Polymetal oxide materials, method for preparing same, and use thereof
04/2002
04/30/2002US6380428 Using zeolite adsorber
04/30/2002US6380427 Crystallization of raw materials in alcohol; separation
04/30/2002US6380426 Carbonylation alcohol with carbon monoxide in presence of palladium catalyst
04/30/2002US6380412 Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof
04/30/2002US6380409 Methods for preparing CLA isomers
04/30/2002US6380399 Process for producing phthalic anhydride
04/30/2002US6380257 Used as glucose-6-phosphate translocase inhibitors and can be used in therapy of diabetes mellitus
04/30/2002US6380119 Method for regenerating a zeolitic catalyst
04/25/2002WO2002032874A2 Substituted heterocyclic compounds for treating multidrug resistance
04/25/2002WO2002032871A2 Compounds and methods for treating multidrug resistance
04/25/2002WO2002032869A2 Substituted heterocyclic compounds for treating multidrug resistance
04/25/2002WO2002032868A2 2-substituted heterocyclic compounds and their use in treating multidrug resistance
04/25/2002WO2002032845A2 Method of producing carboxylic acid salts
04/25/2002WO2002032843A2 Process for the purification of cyclopropanecarboxaldehyde
04/25/2002WO2002032571A1 Catalyst comprising a support and a catalytically active oxide material applied to the surface of the substrate
04/25/2002WO2002032235A2 Process for making mineral, food or pharmaceutical grade salt products
04/25/2002WO2001096270A3 Method for the production of acrolein or acrylic acid or the mixture thereof from propane
04/25/2002WO2001077059A3 Carbonylation of lower alkyl alcohols and their derivatives using metals supported on carbonized polysulfonated divinylbenzene-styrene copolymers
04/25/2002WO2001077054A3 Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
04/25/2002WO2001068583A3 Process for the carbonylation of ethylenically unsaturated compounds
04/25/2002WO2000078700A3 Method for improving the stability and/or avoiding deactivation of a catalyst when making an acetic acid and/or methyl acetate
04/25/2002US20020049339 Process for producing refined pyromellitic acid and refined pyromellitic anhydride
04/25/2002US20020049136 Oxidation of n-butane to maleic anhydride
04/24/2002EP1199301A1 Olefination process to itaconate and succinate derivatives
04/24/2002EP1199298A1 Process for producing refined pyromellitic acid and refined pyromellitic anhydride
04/24/2002EP1198446A1 Method for separating and purifying an aqueous mixture that mainly consists of acetic acid and formic acid
04/24/2002EP1198445A1 A method for the separation of and purification of an aqueous mixture consisting of the main components acetic acid and formic acid
04/24/2002EP1198444A1 Process for crystallization of dicarboxylic acids
04/24/2002EP0946484A4 Method for controlling the reactivity of an ozonization reaction product
04/24/2002EP0932593B1 A process for the recovery of lactic acid
04/24/2002EP0885184B1 Perfluoro(alkoxycycloalkane)carbonyl fluoride compositions and their use
04/24/2002CN1083422C Process for production of phenyllatic acid derivative
04/24/2002CN1083421C Catalytic gas-phase oxidation of acrolein to acrylic acid
04/24/2002CN1083420C Method for purifying acrylic acid and methacrylic acid
04/24/2002CN1083419C Pentanoic acid derivatives, its preparation, medicinal materials having same and use thereof
04/24/2002CN1083418C Process for the removel of iodine from acetyl compounds
04/24/2002CN1083417C Process for preparing aromatic carboxylic acids with efficient energy recovery
04/24/2002CN1083416C High productivity process for production of maleic anhydride
04/24/2002CN1083410C Method for inhibiting polymerization of vinyl compouds
04/24/2002CN1083283C Separation of substances from liquid mixture by crystallization
04/23/2002USRE37670 Related to the antiepileptic drug valproate;
04/23/2002US6376723 Process for the carbonylation of formaldehyde
04/23/2002US6376715 Process for the preparation of bisphosphines
04/23/2002US6376709 Process for the crystallization of dicarboxylic acids
04/23/2002US6376708 Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts
04/23/2002US6376688 Malaria therapy
04/23/2002US6376684 Chemical intermediate for oxybutynin-type compounds
04/23/2002US6376514 Piperidine-derived compounds containing a quinolyl group that inhibits p-glycoprotein transport protein activity; for treating cancer and other diseases
04/23/2002US6376230 Stereoselective process for producing intermediates of cryptophycins
04/23/2002US6376223 Process for purifying polycarboxylic acids
04/23/2002US6376168 Method for preparing non-photosensitive fatty acid silver salt grain
04/23/2002CA2053828C Continuous process for the simultaneous preparation of acetic acid and acetic anhydride
04/23/2002CA2047393C Stabilized monomer compositions
04/18/2002WO2002030919A1 SYNTHESIS OF R(+)α-LIPOIC ACID