| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 05/04/1994 | CN1086205A Method for preparing n-hexyl acid by secondary-octanol nitric acid oxydation |
| 05/04/1994 | CN1024415C Process for the preparation of benzoic acid derivatives |
| 05/04/1994 | CN1024414C Method and apparatus for increasing yield and product quality while reducing power costs in oxidation of aromatic alkyl to aromatic acid |
| 04/28/1994 | WO1994008939A1 Method for hydroxycarbonylating pentenoic acids |
| 04/28/1994 | WO1994008938A1 Method for refining acetic anhydride |
| 04/28/1994 | WO1994008937A1 Enantiomeric resolution |
| 04/28/1994 | WO1994008936A1 Enantiomeric resolution |
| 04/28/1994 | WO1994008935A1 Enantiomeric resolution |
| 04/28/1994 | WO1994008934A1 Enantiomeric resolution |
| 04/28/1994 | CA2146975A1 Process for hydroxycarbonylating pentenoic acids |
| 04/28/1994 | CA2146781A1 Enantiomeric resolution |
| 04/28/1994 | CA2146780A1 Enantiomeric resolution |
| 04/28/1994 | CA2146778A1 Enantiomeric resolution |
| 04/28/1994 | CA2146777A1 Enantiomeric resolution |
| 04/27/1994 | EP0593646A1 High productivity process for the production of maleic anhydride |
| 04/27/1994 | EP0593546A1 Oxidation of alkylaromatics. |
| 04/27/1994 | CN1085891A Process for the production of purified terephthalic acid |
| 04/27/1994 | CN1085889A Process for the production of purified terephthalic acid |
| 04/27/1994 | CN1024344C Catalyst for oxidation of unsaturated aldehydes |
| 04/26/1994 | US5306833 Preparation process for arylacetic acids and their alkali metal salts |
| 04/26/1994 | US5306398 Adding copper or copper compound and base, distilling copper compound and alkali compound |
| 04/26/1994 | CA1328880C Partly fluorinated carboxylic acids and derivatives thereof, processes for their preparation and their use |
| 04/20/1994 | EP0592552A1 Chiral phospholanes via chiral 1,4-diol cyclic sulfates. |
| 04/20/1994 | EP0592491A1 Ibuprofen resolution. |
| 04/20/1994 | CN1085541A Technology for preparing powdered benzene diformate of alkali metal |
| 04/20/1994 | CN1085540A Process for the production of acetic acid |
| 04/20/1994 | CN1085539A Purification of acetic acid and/or acetic anhydride using ozone |
| 04/19/1994 | US5304678 Acetic acid from ethylene |
| 04/19/1994 | US5304677 Method for producing 2,6-dihydroxybenzoic acid |
| 04/19/1994 | US5304676 Process for the production of terephthalic acid |
| 04/19/1994 | CA1328662C Stereoselective synthesis of leukotriene antagonists |
| 04/19/1994 | CA1328611C Pharmaceutical compositions comprising at least one aromatic compound as active principle |
| 04/19/1994 | CA1328605C Medicinal composition useful for the treatment of dermatological diseases |
| 04/14/1994 | WO1994007839A1 Process of making chiral 2-aryl-1,4-butanediamine derivatives |
| 04/14/1994 | WO1994007836A1 Process for isomerization of pentene-2-oic acid into pentene-3-oic and pentene-4-oic acids by acid, basic or amphoteric catalysis |
| 04/14/1994 | WO1994007835A1 Process for isomerization of lactones into pentenoic acids by acid or basic catalysis |
| 04/14/1994 | WO1994007834A1 A recycling process for the production of adipic acid and other aliphatic dibasic acids |
| 04/14/1994 | WO1994007833A1 A process for the preparation of adipic acid and other aliphatic dibasic acids |
| 04/14/1994 | WO1994007814A1 Process for separating enantiomers from a racemic mixture |
| 04/14/1994 | WO1994007601A1 Vanadium phosphorus oxide catalyst and aerosol method of preparation |
| 04/14/1994 | DE4313480C1 Prepn. of water-soluble caesium salt from caesium-aluminium alum - by reaction with calcium hydroxide and soluble calcium salt in amts. equimolar to aluminium and caesium in water, without adding barium cpd. |
| 04/14/1994 | CA2146553A1 Process for separating enantiomers from a racemic mixture |
| 04/14/1994 | CA2146154A1 Process for isomerizing pentene-2-carboxylic acid into pentene-3-carboxylic and pentene-4-carboxylic acids with an acid, basic or amphoteric catalyst |
| 04/14/1994 | CA2146153A1 Process for isomerizing lactones into pentenoic acids with an acid or a basic catalyst |
| 04/14/1994 | CA2145307A1 A process for the preparation of adipic acid and other aliphatic dibasic acids |
| 04/14/1994 | CA2145305A1 A recycling process for the production of adipic acid and other aliphatic dibasic acids |
| 04/13/1994 | EP0592123A1 Process for the production of an alkali-metal citrate |
| 04/13/1994 | EP0591795A1 Process for hydrogenolysis of citric acid |
| 04/13/1994 | EP0591188A1 High yield recycle process for lactide |
| 04/13/1994 | EP0591176A1 Method for the preparation of an aluminium triformate solution containing alkali metals and/or alkaline-earth metals, highly concentrated aluminium triformate solutions containing alkali metals and/or alkaline-earth metals, and the use of such solutions. |
| 04/13/1994 | EP0425666B1 Process for producing methacrylic acid and methacrolein |
| 04/13/1994 | CN1085206A Process for recovery of cis-anhydride using n-butanol as solvent |
| 04/13/1994 | CN1085205A Separation and use for chloracetic acid mother liquor |
| 04/13/1994 | CN1024189C Treatment of acetic acid with hydrogen in presence of hydrogenation catalyst |
| 04/12/1994 | US5302751 Profen resolution |
| 04/12/1994 | CA1328466C Trifluorobenzene compounds and process for producing the same |
| 04/10/1994 | CA2104356A1 Production of citric acid and trisodium citrate from molasses |
| 04/06/1994 | EP0590856A1 Releasably bound carboxylic acids |
| 04/06/1994 | EP0590451A1 Process for acylation of aromatic compounds |
| 04/06/1994 | EP0590087A1 A process for controlling the regeneration of boron trifluoride catalyst complex in the production of carboxylic acids. |
| 04/06/1994 | CN1084845A Bromine catalysed oxidation processes |
| 04/06/1994 | CN1084822A Process for the purification of gaseous hydrochloric acid |
| 04/05/1994 | US5300685 Contacting with polymer/metal complex which reacts with alkyl halides to quaternize or form salts and precipitate metal halides which are trapped in matrix |
| 04/05/1994 | US5300684 Process for the fluidized bed oxidation of ethane to acetic acid |
| 04/05/1994 | US5300682 Catalytic oxidation of ethane to acetic acid |
| 04/05/1994 | US5300201 Photochlorination of phthalic anhydride |
| 04/05/1994 | US5300198 Distillation in presence of acetic acid; suppressing tar formation |
| 04/05/1994 | US5300126 Diels-Alder to remove deactivating dienes, basic nitrogen and thiophene with maleic anhydride and other dienophiles |
| 03/31/1994 | WO1994006926A1 Enzymatic oxidation of glycolic acid in the presence of non-enzymatic catalyst for decomposing hydrogen peroxide |
| 03/31/1994 | WO1994006747A1 Resolution of ketoprofen |
| 03/31/1994 | WO1994006745A1 Method for making valproic acid derivatives |
| 03/31/1994 | WO1994006744A1 Process for producing trifluoroacetyl chloride |
| 03/31/1994 | WO1994006743A1 Analogues of vpa used as anti-epileptica |
| 03/31/1994 | WO1994006742A1 Process for preparing perhaloacyl chlorides |
| 03/31/1994 | CA2144419A1 Vpa-analogous antiepileptic agents |
| 03/31/1994 | CA2122816A1 Method for making valproic acid derivatives |
| 03/31/1994 | CA2107163A1 Releasably bound carboxylic acids |
| 03/30/1994 | CN1084503A Method for purification of hydroxy-acetic acid from organic acid-and its salt-containing water solution |
| 03/30/1994 | CN1024092C Catalyst for producing phthalic anhydride |
| 03/29/1994 | US5298653 Process for preparing 1,2,3,4-butanetetracarboxylic acid |
| 03/29/1994 | US5298634 Reacting maleate or mixture with 2,2-oxodisuccinate, fumarate and malate, calcium, magnesium divalent cations and rendering reaction mixture alkaline by adding hydroxide |
| 03/29/1994 | US5298586 Reacting carbon monoxide with carboxylic acid, ester or alkyl ether in presence of rhodium catalyst and iodide promoter |
| 03/29/1994 | CA1328115C Method for making 2,6-naphthalenedicarboxylic acid |
| 03/23/1994 | CN1084160A Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives |
| 03/23/1994 | CN1084159A Method for epurating hydroxy-acetic acid from water solution containing mineral acid and salt |
| 03/23/1994 | CN1084155A Inhibiting polymerization of vinyl aromatic monomers |
| 03/22/1994 | US5296640 Oxidation |
| 03/22/1994 | US5296639 Adipic acid purification |
| 03/22/1994 | US5296638 Etherification or esterification with allyl halide, heating and saponification |
| 03/22/1994 | US5296636 Preparation of 2,4,6-trimethylbenzoic acid |
| 03/22/1994 | US5296621 Process for the isolation of hydroxy fatty acid derivatives from convolvulaceae plants |
| 03/22/1994 | US5296595 Metal complexes with bridging ligands |
| 03/22/1994 | US5296436 Phosphorous/vanadium oxidation catalyst |
| 03/17/1994 | WO1994005621A1 Process for the manufacture of cinnamic acid derivatives |
| 03/17/1994 | WO1994005423A1 Polymeric carbonylation catalyst system |
| 03/17/1994 | WO1994005421A1 Process for producing acetic acid or methyl acetate and catalyst |
| 03/17/1994 | WO1994005420A1 Ru-Sn HETEROPOLYNUCLEAR COMPLEX AND PROCESS FOR PRODUCING ACETIC ACID OR METHYL ACETATE BY USING THE SAME |
| 03/17/1994 | DE4328060A1 Unsatd. beta-oxy-carboxylic acid halide prepn. - from enol cpd. and oxalyl halide in 3 stages, used as intermediate for drugs, plant protectants, dyes or polymers |
| 03/17/1994 | DE4231085A1 VPA-analoge Antiepileptika VPA-analog antiepileptic drugs |
| 03/17/1994 | DE4230901A1 Catalyst for prepn of phthalic anhydride by oxidn of ortho-xylene - contg large amt. of vanadium pent:oxide on amorphous aluminosilicate as micro-carrier. |