| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 02/13/1990 | US4900846 Process for making 1,3-dioxane derivatives |
| 02/13/1990 | US4900843 Method for dimerization of aromatic halide compounds |
| 02/13/1990 | US4900479 Reacting acid with phosphorus chloride or bromide, treating with immiscible amide/hydrohalide mixture, separating phases |
| 02/13/1990 | US4900413 Process for direct carbonylation of hydrocarbons |
| 02/13/1990 | CA1265815A1 Preparation of transition metal salts of organic carboxylic acids |
| 02/13/1990 | CA1265793A1 Cycloaliphatic unsaturated derivatives, process for their preparation and use as therapeutic agents |
| 02/07/1990 | EP0353915A2 Novel crystalline (metallo) silicates and germanates |
| 02/07/1990 | EP0353914A2 Novel crystalline (metallo) silicates and germanates |
| 02/07/1990 | EP0353722A2 Carbonylation process |
| 02/07/1990 | CN1039410A Process for preparing acetic acid and acetic anhydride |
| 02/06/1990 | US4899003 Process for oxydehydrogenation of ethane to ethylene |
| 02/06/1990 | US4898977 Processes for the preparation of 5-amino-4-hydroxyvaleric acid derivatives |
| 02/06/1990 | US4898976 Method of making the ethanolamine salt of N-nitrosophenylhydroxylamine |
| 02/06/1990 | US4898974 Production of 3,3-dimethyl-2-oxo-butyric acid salt |
| 02/06/1990 | US4898889 Methods for the treatment of hypertension |
| 02/06/1990 | US4898883 1-Substituted derivatives of 4-methoxy-2,3,6-trimethylbenzene, process for their preparation and medicinal and cosmetic compositions containing them |
| 02/06/1990 | US4898868 Anticholesterol agents; lactone or free acid form |
| 02/06/1990 | US4898864 Bicyclic aromatic compounds, a process for their preparation and their use in cosmetics and human and veterinary medicine |
| 02/06/1990 | US4898655 Reacting with bromine or mercapto compounds in presence of ultraviolet light |
| 02/06/1990 | US4898644 Stripping acid and contacting with cation to form salt |
| 02/06/1990 | CA1265532A1 Preparation of transition metal salt compositions of organic carboxylic acids |
| 02/06/1990 | CA1265531A1 Separation and purification of parahydroxybenzoic acid |
| 02/06/1990 | CA1265530A1 Separation and purification process of salicylic acid |
| 02/06/1990 | CA1265529A1 Substituted naphthoic acid process |
| 01/31/1990 | EP0352718A2 Partially fluorinated compounds and polymers |
| 01/31/1990 | EP0352713A1 Method and compositions providing enhanced chemiluminescence from 1,2-dioxetanes |
| 01/31/1990 | EP0352378A1 Nickel containing catalyst |
| 01/31/1990 | CN1039241A Process for preparing phenylacetic acid by chlorobenzyl carbonylation under normal pressure |
| 01/30/1990 | US4897505 Reacting 3-chloro-3(4-chlorophenyl)propenal with chloromethyl isopropyl ketone, reacting the resulting product in the presence of a base or alkoxide |
| 01/30/1990 | US4897473 Homologation of carbonyloxy containing compounds |
| 01/30/1990 | US4897420 Ischemic diseases; antiallergens |
| 01/30/1990 | CA1265158A1 Method for preparing 3-ethylbenzophenone |
| 01/30/1990 | CA1265156A1 Process for the enrichment with .delta.6 fatty acids of a mixture of fatty acids |
| 01/29/1990 | EP0314759A4 Asymmetric hydroformylations of prochiral olefins to chiral aldehydes in high enantiomeric excess. |
| 01/24/1990 | EP0352168A1 Process for the purification of D-hydroxyphenoxy propionic acid |
| 01/24/1990 | EP0351887A1 Tricyclic aromatic compounds |
| 01/24/1990 | EP0351650A2 Fluorocyclopropyl derivatives |
| 01/24/1990 | EP0351647A2 2,2-Difluorocyclopropyl derivates |
| 01/24/1990 | EP0351627A1 Process for the recovery of ortho-toluic acid by distillation |
| 01/24/1990 | EP0226519B1 Process for preparing alpha-hydroxycarboxylic acids |
| 01/23/1990 | US4895984 Acylation of aromatics |
| 01/23/1990 | US4895978 Oxidation of pseudocumene to trimellitic acid enhanced by low gram atom ratios of zirconium to transition metal in oxidation catalyst system |
| 01/23/1990 | US4895873 Calcium salt of valproic acid |
| 01/23/1990 | US4895661 Electroless copper deposition |
| 01/23/1990 | CA1264766A1 Method for the preparation of phenyl pyruvic acid |
| 01/23/1990 | CA1264765A1 Process for the optical resolution of racemic mixtures of o-naphthyl-propionic acids |
| 01/23/1990 | CA1264728A1 Catalyst for oxidation reactions and process for its production |
| 01/18/1990 | DE3923389A1 Verfahren zur herstellung von methoxyessigsaeure Process for preparing methoxyacetic acid |
| 01/17/1990 | EP0351167A1 Method for production of methacrylic acid |
| 01/17/1990 | EP0350862A2 Process for producing methacrylic acid |
| 01/17/1990 | EP0350741A1 Process for preparing gluconic acid by catalytic oxidation of glucose |
| 01/17/1990 | EP0350635A1 Process for the preparation of acetic acid and acetic anhydride |
| 01/17/1990 | CN1006464B Process for preparing naphthalene derivatives |
| 01/16/1990 | US4894482 Process for drying hydrogen fluoride-carboxylic acid mixtures |
| 01/16/1990 | US4894477 Cationic exchange resin columns |
| 01/16/1990 | US4894473 Process for preparing 7-(2-hexyl-5-hydroxy-cyclopentyl)-heptanoic acid |
| 01/16/1990 | US4894188 Process for producing fatty acids and their ester derivatives |
| 01/10/1990 | EP0350344A1 Layered intercalated metal oxides, and process for their preparation |
| 01/10/1990 | EP0350320A2 Production of unsaturated compounds |
| 01/10/1990 | EP0350069A2 Method for oxidizing unsaturated aromatic compounds |
| 01/10/1990 | EP0350038A2 Enrichment of optical purity of 2-(4-aryloxyphenoxy) propionic acids by crystallization as hydrates |
| 01/10/1990 | CN1006380B Ralpha-f-substituted-acrylic resin and polymer thereof |
| 01/09/1990 | US4892972 Purification of crude terephthalic acid |
| 01/09/1990 | US4892970 Staged aromatics oxidation in aqueous systems |
| 01/09/1990 | US4892962 Process for the preparation of 2,2-difluoropent-4-enoic acids and acid derivatives |
| 01/09/1990 | US4892940 Aromatic naphthyl compounds, a process for their preparation and their use in human and veterinary medicine and in cosmetic compositions |
| 01/09/1990 | US4892856 Catalyst for oxidation of acrolein and process for preparation thereof |
| 01/09/1990 | US4892625 Method for producing high purity chemicals |
| 01/09/1990 | CA1264331A1 Polyprenyl compounds |
| 01/09/1990 | CA1264328A1 Antiallergic agents |
| 01/09/1990 | CA1264320A1 Prostaglandin analogues, process for their preparation and pharmaceutical compositions containing them |
| 01/08/1990 | EP0297135A4 Deicing compositions comprising calcium magnesium acetate double salt and processes for their production. |
| 01/03/1990 | EP0349406A1 Process for the industrial manufacture of aqueous solutions of glyoxylic acid |
| 01/03/1990 | EP0219601B1 Process for the preparation of (z)-2-methyl-2-butenoic acid |
| 01/03/1990 | EP0173748B1 Process for producing substituted unsaturated six-membered ring compounds from phenol derivatives |
| 01/03/1990 | CN1038446A Improved process for production of aromatic polycarboxylic acids |
| 01/02/1990 | US4891432 Phenoxy imidazole compound |
| 01/02/1990 | US4891386 Lidocaine derivative and therapeutic compositions which contain it as principal active ingredient |
| 01/02/1990 | US4891347 Process for the preparation of catalyst used in the production of unsaturated carboxylic acids |
| 01/02/1990 | CA1264164A1 Process for making monocarboxylic anhydrides |
| 12/28/1989 | WO1989006649A3 Antibacterial agents |
| 12/27/1989 | EP0347939A1 Method for preparing alpha-(4-isobutylphenyl) propionic acid or its precursor |
| 12/27/1989 | EP0347621A1 Process for the removal of hydrogen fluoride from isobutyric acid or its alkyl esters |
| 12/27/1989 | CN1006224B New functionalized perfluoropolyethers and process for the prepn. |
| 12/27/1989 | CA1264050A1 Carrier-supported catalyst for making monocarboxylic anhydrides |
| 12/26/1989 | US4889952 Oxidation, ctalysis; chemical intermediates |
| 12/26/1989 | US4889871 Alkoxy-substituted dihydrobenzopyran-2-carboxylate derivatives |
| 12/26/1989 | US4889656 Surfactants |
| 12/21/1989 | DE3820785A1 Herstellung von polylactonen Production of polylactones |
| 12/20/1989 | EP0347374A1 Process for the preparation of hydroxy acids |
| 12/20/1989 | CN1038117A Preparation of promotor for bonding rubber-steel wire |
| 12/20/1989 | CN1038091A Technology for producing oxalic acid by oxidation of glycol |
| 12/20/1989 | CN1038090A Method for producing hexanoic acid |
| 12/19/1989 | US4888443 Process for the production of pimelic acid |
| 12/19/1989 | US4888433 Process for the preparation of optically active alpha-arylalkanoic acids and novel intermediates thereof |
| 12/19/1989 | US4888421 Process for making compounds containing chelated metal ions and resultant products which are useful for agricultural, industrial, environmental, and construction purposes |
| 12/19/1989 | US4888139 Dichloromethoxy-alpha-chloroacetyl chloride |
| 12/14/1989 | DE3918458A1 Process for preparing alpha-ketobutyric acid |
| 12/13/1989 | EP0346196A1 Process for the recovery of citric acid from liquors containing it |
| 12/13/1989 | EP0346029A1 Aromatic carboxylic acids |