| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 02/24/1999 | EP0897905A2 Process for producing maleic anhydride |
| 02/24/1999 | EP0897747A1 Nitration or carboxylation catalysts |
| 02/24/1999 | EP0897267A1 A process for the production of chromium(iii) salts of short chain fatty acids for use in animals feeds |
| 02/24/1999 | CN1208729A Method and apparatus for direct oxygen injection with reactant stream into fluidized bed reactor |
| 02/24/1999 | CN1042223C Method for synthesizing 5-(2,5-dimethyl phenoxy)-2,2-dimethyl valeric acid |
| 02/24/1999 | CN1042222C Process for prepn. of cyclopentene, cyclopentane and cyclohexane derivatives |
| 02/24/1999 | CN1042199C Catalyst for dehalogenation of alpha-halogenated carboxylic acids and its use for purifying monochloroacetic acid |
| 02/23/1999 | US5874614 Sodium (S)-2-(6-methoxy-2-naphthyl)propionate monohydrate |
| 02/23/1999 | US5874610 Process for the recovery of a carbonylation product |
| 02/23/1999 | US5874582 Reacting benzoyl phthalic acid or ester or anhydride derivatives with hydroxyquinoline derivatives; useful for bulk dyeing plastics; heat resistance, colorfastness and weatherproofing |
| 02/23/1999 | US5874520 Preparation of nylon salts from diamine carbamates and dicarboxylic acids |
| 02/23/1999 | US5874466 Reacting amine and acyl chloride, hydrogenolysis |
| 02/18/1999 | WO1999007692A2 New epothilone derivatives, method for producing same and their pharmaceutical use |
| 02/18/1999 | WO1999007663A1 Forming terephthalic acid by electrochemical acidification of a sodium terephthalate solution |
| 02/18/1999 | CA2299608A1 New epothilone derivatives, method for producing same and their pharmaceutical use |
| 02/17/1999 | EP0896960A2 Process for the production of trimellitic acid and process for the production of trimellitic acid anhydride |
| 02/17/1999 | EP0896569A1 Salt of boehmite alumina |
| 02/17/1999 | EP0707563B1 Production of dicarboxylic acids or esters thereof |
| 02/17/1999 | CN1042129C Producing process for 4-(3,4-dichlorobenzene)-3,4-dihydro-2(2H)-naphthaleneone |
| 02/16/1999 | US5872291 Reaction of aromatic aldehyde with chlorine in the presence of inert gases |
| 02/16/1999 | US5872290 Preparation of acid chlorides |
| 02/16/1999 | US5872289 Hydrolysis of carboxylic acid alkyl esters in the liquid phase |
| 02/16/1999 | US5872288 Process for producing (meth) acrylic acid |
| 02/16/1999 | US5872284 Method for purifying crude naphthalenedicarboxylic acid |
| 02/16/1999 | US5872283 Process for decarboxylation of halogenated aromatic carboxylic acids |
| 02/16/1999 | US5872267 Reacting a cyclohexanone or derivative with acrylic compound to form intermediate in basic environment, oxididation with hydrogen peroxide or organic peroxides in acid catalyst to form intermediate, hydrogenation or hydrolysis of the product |
| 02/16/1999 | CA2170846C Process for preparing 3-chloropropionic acid |
| 02/16/1999 | CA2080708C Catalyst for dehalogenating alpha-halogenated carboxylic acids |
| 02/11/1999 | WO1999006348A1 Process for the purification of (meth)acrylic acid |
| 02/11/1999 | WO1999006345A1 Improved process of preparation of linear aldehydes |
| 02/11/1999 | WO1999006341A1 A process for the preparation of cyclopropylacetylene |
| 02/11/1999 | WO1999006338A1 Method for oxidising substituted hydrocarbon derivatives |
| 02/11/1999 | WO1999006143A1 Phosphorus/vanadium catalyst preparation |
| 02/11/1999 | CA2298626A1 A process for the preparation of cyclopropylacetylene |
| 02/11/1999 | CA2291693A1 Improved process of preparation of linear aldehydes |
| 02/10/1999 | EP0895991A2 Halogenating agent |
| 02/10/1999 | EP0785919B1 Preparation of carboxylic acids or related esters by carbonylation in the presence of iridium |
| 02/09/1999 | US5869739 Reacting carbon dioxide in supercritical state with hydrogen and alcohol in presence of transition metal compound or complex to produce formic acid ester |
| 02/09/1999 | US5869737 Process for the preparation of cyclopropane-1, 1-dicarboxylic acid derivatives |
| 02/09/1999 | US5869735 Reacting aromatic alcohols with alkyl halides containing carboxyl groups and basic alkali metal or alkaline earth metal compounds in the melt of said alcohol |
| 02/09/1999 | US5869713 Intermediates for the synthesis of enantiomerically pure alpha-liponic acids and dihydroliponic acids |
| 02/09/1999 | US5869700 Method for recovering phthalic anhydride/maleic anhydride mixtures by distillation |
| 02/09/1999 | US5869698 1,2-dioxetane compounds as chemiluminescent labels for organic and biological molecules |
| 02/04/1999 | WO1999005151A1 Porous solid products of 1,3,5-benzenetricarboxylate and metal ions |
| 02/04/1999 | WO1999005086A1 Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio |
| 02/04/1999 | CA2297740A1 Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio |
| 02/03/1999 | EP0894784A1 4-fluorosalicylic acid derivatives and process for producing the same |
| 02/03/1999 | EP0894517A1 Process for the industrial recovery of oleanolic and maslinic acids contained in the olive milling subproducts |
| 02/03/1999 | EP0894142A2 Preparation of microbial polyunsaturated fatty acid containing oil from pasteurised biomass |
| 02/03/1999 | EP0894082A1 Synthesis of solid, powdery rare earth carboxylates by a precipitation method |
| 02/03/1999 | EP0702517A4 Quaternary ammonium and waterproofing/preservative compositions |
| 02/03/1999 | CN1206627A Preparation of alumen antimonate catalyst by using zinc dioxide hydrate |
| 02/03/1999 | CN1041915C Process for the production of acetic acid |
| 02/03/1999 | CN1041914C Process for removal of corrosion metal contaminants from liquid compositions |
| 02/02/1999 | US5866723 Intermediates for an active class of aryl-haloalkylpyrazole and aryl alkylsulfonylpyrazole herbicides. |
| 02/02/1999 | US5866716 Halogen-free catalyst system consisting of rhodium or a rhodium compound and at least one nitrogen-containing heterocyclic |
| 02/02/1999 | CA2125800C Sulphidised catalyst which contains platinum on activated carbon |
| 02/02/1999 | CA2099996C Process for preparing halogenated compounds |
| 01/28/1999 | WO1999003814A2 Method for producing 3-hydroxy-2-methylbenzoic acid |
| 01/28/1999 | WO1999003812A1 Improved process for recovering hydrogen in producing pure terephthalic acid |
| 01/28/1999 | WO1999003810A1 Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide |
| 01/28/1999 | WO1999003464A1 Hydroxycitric acid compositions, pharmaceutical and dietary supplements and food products made therefrom, and methods for their use in reducing body weight |
| 01/28/1999 | WO1998049130A3 Hydroxynaphthoic acids and derivatives |
| 01/28/1999 | CA2297455A1 Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide |
| 01/28/1999 | CA2296697A1 Method for producing 3-hydroxy-2-methylbenzoic acid |
| 01/27/1999 | EP0893160A1 Loaded ion-exchange resins, their preparation and uses |
| 01/27/1999 | EP0892776A1 Method for preparing acetic acid and/or methyl acetate by methyl formate isomerisation |
| 01/27/1999 | EP0892773A2 Preparation of aromatic hydroxycarboxylic acids and dialkali metal salts thereof |
| 01/27/1999 | CN1206400A Process for producing 2-hydroxynaphthalene-3,6-dicarboxylic acid |
| 01/27/1999 | CN1206399A 4-fluorosalicylic acid derivatives and process for producing the same |
| 01/27/1999 | CN1206398A Naphthalenedicarboxylic acid particles and process for production thereof |
| 01/27/1999 | CN1206397A Process for preparing aromatic dicarboxylic acid |
| 01/27/1999 | CN1205999A Rheic acid extracting method from rhubarb and its purification process |
| 01/27/1999 | CN1041821C Process for preparing terephthaiate or terephthalic acid |
| 01/27/1999 | CN1041820C Process for production of acetic acid |
| 01/27/1999 | CN1041819C Apparatus of producing aromatic carboxylic acid |
| 01/26/1999 | US5864049 Process for the preparation of mono- and dicarboxylic acids from unsaturated fatty acids and/or their derivatives |
| 01/26/1999 | US5863865 Herbicidal 4-benzoylisoxazoles derivatives |
| 01/26/1999 | CA2005320C Process for preparing para-hydroxybenzoic acid |
| 01/26/1999 | CA1340359C Process for preparing polymeric dispersants having alternating polyalkylene and succinic groups |
| 01/22/1999 | CA2243402A1 Process for producing maleic anhydride |
| 01/21/1999 | WO1999002481A1 Process for the production of methyl methacrylate |
| 01/21/1999 | WO1999002480A1 Treatment of formaldehyde-containing mixtures |
| 01/21/1999 | WO1999002479A1 Method for producing calcium pyruvates |
| 01/21/1999 | WO1999002120A2 Compositions and methods for reversibly increasing permeability of biomembranes |
| 01/21/1999 | DE19730848A1 Verfahren zur Herstellung von 3-Hydroxy-2-methylbenzoesäure A process for the preparation of 3-hydroxy-2-methylbenzoic acid |
| 01/21/1999 | DE19730783A1 Hydroformylierung mit unmodifizierten Rhodiumkatalysatoren in überkritischem Kohlendioxid Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide |
| 01/21/1999 | CA2296017A1 Method for producing calcium pyruvates |
| 01/20/1999 | EP0891964A1 Process for producing of 3-acetoxy-2-methyl-benzoyl chloride |
| 01/20/1999 | EP0891963A1 Process for the preparation of fatty acids |
| 01/20/1999 | EP0891318A1 Azeotropic distillation process |
| 01/20/1999 | EP0891317A1 Process for decolorizing cyclopropanecarboxylic acid |
| 01/20/1999 | EP0724481B1 METHOD FOR THE PRODUCTION OF CATALYTICALLY ACTIVE MULTI-METAL OXIDE COMPOSITIONS CONTAINING THE ELEMENTS V AND Mo IN OXIDE FORM AS THEIR MAIN COMPONENTS |
| 01/20/1999 | CN1205751A Fibrous-foamation aerogel composite material containing at least one thermoplastic fibrous material process for prodn. thereof, and use thereof |
| 01/20/1999 | CN1205325A Process for preparing 3,3-dimethylbutyric acid |
| 01/20/1999 | CN1205244A Hydrogenation catalysts |
| 01/19/1999 | US5861523 Zirconium carboxylates in solution with branched carboxylic acids |
| 01/14/1999 | DE19729786A1 Preparation of pure, stable calcium pyruvate in high yield |
| 01/13/1999 | EP0889871A1 Method for preparing acetic acid and/or methyl acetate by isomerisation and carbonylation |
| 01/13/1999 | EP0889870A1 Method for preparing carboxylic acids and/or esters thereof by isomerising esters |