Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
08/1995
08/15/1995US5442103 Process for producing 2,6-naphthalenedicarboxylic acid
08/15/1995US5442097 Process for the recovery of fluorinated carboxylic acids
08/15/1995US5442081 Process for the production of oligomeric fatty acids and lower alkyl ester thereof
08/13/1995CA2142255A1 Process for the preparation of 4-alkoxy-3,5,6-trifluorophthalic acids and 3-alkoxy-2,4,5-trifluorobenzoic acids
08/10/1995CA2142038A1 Process for isolating hydroxymonocarboxylic and tricarboxylic acids
08/09/1995EP0666267A2 Organometallic fluorenyl compounds, preparation, and use
08/09/1995EP0665828A1 Method for hydroxycarbonylating pentenoic acids.
08/09/1995EP0514529B1 Process for preparing gold carboxylates
08/08/1995US5440061 Hydrolysis of methyl esters in dimethylsulfoxide for production of fatty acids
08/08/1995US5440059 Clay-catalyzed synthesis of aryl-substituted fatty acids and fatty esters and compositions related thereto
08/08/1995US5440023 Method for making valproic acid derivatives
08/03/1995WO1995020563A1 New leukotriene b4 derivatives, methods of preparing them and their use as drugs
08/03/1995WO1995020561A1 Process for preparing carboxylic acids by carbonylation of ethers and thioethers
08/03/1995WO1995020557A1 A process for preparing 3-methyl-2-pentene
08/03/1995WO1995020541A1 Production of no from n2o
08/03/1995CA2182212A1 Process for preparing carboxylic acids by carbonylation of ethers and thioethers
08/02/1995EP0665230A2 Halocarbyl-substituted porphyrins and their synthesis from meso-halocarbyl-dipyrromethanes and aldehydes
08/02/1995EP0665212A1 Process for the preparation of substituted phenylacetic acid derivates and intermediates
08/02/1995EP0665211A1 Process for preparing citraconic anhydride
08/02/1995EP0665210A1 Process for producing acetic anhydride alone or both of acetic anhydride and acetic acid
08/02/1995EP0665209A1 Process for the catalytic oxidation of aromatic compounds
08/02/1995EP0665056A2 Method for oxidizing alkanes using halocarbyl-substituted porphyrins synthesized from meso-halocarbyl-dipyrromethanes and aldehydes
08/02/1995EP0664785A1 Method for refining acetic anhydride
08/02/1995EP0664784A1 Enantiomeric resolution.
08/02/1995EP0664783A1 Enantiomeric resolution
08/02/1995EP0664782A1 Enantiomeric resolution
08/02/1995EP0664781A1 Enantiomeric resolution
08/02/1995CN1105979A Method of preparation of high-purity oxalic acid
08/02/1995CN1105978A Process for producing highly purified acetic acid
08/02/1995CN1029396C Synthetic method of chlorophenosic acid
08/01/1995US5438146 Enhanced chemiluminescence from 1,2-dioxetanes through energy transfer to tethered fluorescers
08/01/1995US5438034 Quaternary ammonium carbonate compositions and preparation thereof
08/01/1995CA2032110C Process for preparing hexenedioic acid diesters
08/01/1995CA2032109C Process for preparing 1,6-hexenedioic acids from butenediol
08/01/1995CA2032100C Process for preparing 1,6-hexenedioic acids
07/1995
07/26/1995EP0664280A1 Process for dehydration of acrylic acid
07/26/1995EP0663897A1 Process for separating enantiomers from a racemic mixture.
07/26/1995EP0552287B1 Shaped oxidation catalyst structures for the production of maleic anhydride
07/26/1995EP0489097B1 Method for preparing ether carboxylic acids from carbohydrates and their derivatives
07/26/1995CN1105604A Methanol carbonylation sulphur-oxygen coordinated catalyst for making acetic acid and its preparation method
07/26/1995CN1105603A Methyl alcohol carbonylation homogeneous rhodium catalyst and its preparing method and use
07/25/1995US5436305 Organometallic fluorenyl compounds, preparation, and use
07/20/1995WO1995019335A1 Handling of crystallic terephthalic acid at elevated pressure
07/20/1995WO1995019331A2 Process for the preparation of an aldehyde
07/19/1995EP0663385A2 Salts of pyromellitic acide, a process for their preparation, and their use
07/19/1995EP0663382A1 Process for preparing optically active succinic acid compound
07/19/1995EP0663381A2 Process for releasing acidic organic compounds from their salts by means of carbon dioxide
07/19/1995EP0662945A1 Process for isomerization of pentene-2-oic acid into pentene-3-oic and pentene-4-oic acids by acid, basic or amphoteric catalysis
07/19/1995EP0662944A1 Process for isomerization of lactones into pentenoic acids by acid or basic catalysis
07/19/1995EP0662943A1 A recycling process for the production of adipic acid and other aliphatic dibasic acids
07/19/1995EP0662942A1 A process for the preparation of adipic acid and other aliphatic dibasic acids.
07/19/1995EP0524985B1 Process for catalyst recovery
07/19/1995CN1105352A Process for producing propenoic acid by homogenization, oxydation and dehydrogenation of propane, and propene oxydation, and apparatus thereof
07/18/1995US5434303 Process for the preparation of 1-fluoro-cyclopropane-1-carboxylic acid
07/18/1995US5434302 Amines, lithium base
07/18/1995US5434282 Double-branched compounds and processes for their production
07/18/1995US5434281 Process for the stereospecific synthesis of leukotriene B4 in its 6Z, 8E, 10E configuration and intermediates
07/18/1995US5434277 Improved metallic soaps of fatty acids for use as photolyzing agents for photodegradable polymer films
07/18/1995US5434186 Antiinflammatory agents
07/18/1995US5434180 Skin disorders; retinoid activity; rheumatoid psoriasis;
07/18/1995US5433831 Process for the preparation of dichloroacetyl chloride
07/14/1995CA2140116A1 Process for releasing acidic organic compounds from salts thereof by carbon dioxide
07/13/1995WO1995018783A1 Process for the preparation of a linear formyl compound
07/13/1995CA2180663A1 Process for the preparation of a linear formyl compound
07/12/1995EP0662466A1 Continuous process for the recovery of terephthalic acid from waste or used products of polyalkylene terephthalate polymers
07/12/1995EP0419584B1 Method for preparing (+)-isocitric acid and its derivatives
07/12/1995CN1105014A A method and apparatus for purifying acrylic acid, and acrylic acid purified by the method
07/12/1995CN1105013A Process for the carbonylation of methanol or a reactive derivatives thereof
07/12/1995CN1104931A Method for stabilizing rhodium compound
07/12/1995CN1029312C Compound organic solvent for recovering meleic anhydride
07/11/1995US5432203 Depolymerizing polyester: mixing with reactor melt, rectifier liquid in dissolver; contacting reduced chain length product in reactor with superheated methanol; separating products in rectifier into vapor, liquid phases; optimal conditions cited
07/06/1995WO1995018203A1 Process for removing chlorophyll color impurities from vegetable oils
07/06/1995WO1995018089A1 Process for the preparation of 5-formylvaleric acid and 5-formylvalerate ester
07/06/1995WO1995018082A1 Ozonide reducing agent
07/06/1995WO1995017963A1 Process for producing an iridium solution and use of same as catalyst.
07/06/1995CA2180264A1 Process for the preparation of 5-formylvaleric acid and 5-formylvalerate ester
07/05/1995EP0661289A1 Vinyl carboxamide derivatives as insecticides and acaricides
07/05/1995EP0661259A1 Substituted (5,6)-dihydronaphthalenyl compounds having retinoid-like activity
07/05/1995EP0660817A1 Process for producing trifluoroacetyl chloride
07/05/1995EP0660816A1 Process for preparing perhaloacyl chlorides
07/05/1995CN1104643A Process for preparing pyromellitic dianhydride
07/05/1995CN1104627A Preparation of gallic acid by basic hydrolyzation
07/05/1995CN1104625A Chromium, copper and manganese lactates and their productions and applications
07/05/1995CN1104624A Method for producing aliphatic dicarboxylic acid from hydroxycarbonlation of lactone
07/05/1995CN1104623A Method for carbonylation of allylic butenol and ester of same
07/05/1995CN1029229C Calcium citrate anticaking agent
07/05/1995CN1029228C Process for producing unsaturated aldehydes and unsaturayed acids
07/04/1995US5430212 Olefin oligomerization
07/04/1995US5430186 Preparation of carboxylic chlorides
07/04/1995US5430185 Process for manufacturing crystalline calcium magnesium acetate
07/04/1995US5430184 Process for preparing 1,4-cyclohexandicarboxylic acid
07/04/1995US5430183 Para-hydroxyalkylation of hydroxylated aromatic compounds
07/04/1995US5430181 Process for improving a controlled oxidation reaction
07/04/1995CA2138000A1 Retinoid-like compounds
06/1995
06/30/1995CA2139180A1 Method for oxidizing alkanes using novel porphyrins synthesized from dipyrromethanes and aldehydes
06/30/1995CA2139177A1 Porphyrins and their synthesis from dipyrromethanes and aldehydes
06/30/1995CA2139044A1 Vinylcarboxylic acid derivatives
06/29/1995WO1995017376A1 Aryl acetic acid derivatives
06/28/1995EP0659868A2 Process of recovering useful material through cracking of plastic material
06/28/1995EP0659739A1 Process for the preparation of 9-(Z) retinoic acid