| Patents for C07C 201 - Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton (5,786) |
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| 03/11/1999 | DE19732693C1 Verfahren zur Herstellung von substituierten Benzylbromiden A process for preparing substituted benzyl bromides |
| 03/09/1999 | CA1340421C Sythesis of peptide aminoalkylamides and peptide hydrazides by the solid-phase method |
| 03/04/1999 | WO1999010527A2 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 03/04/1999 | CA2300885A1 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 03/03/1999 | EP0899272A1 Mono and di-derivatives of cyclodextrins, their synthesis and purification and their use as carrier |
| 03/03/1999 | CN1209804A Process for preparing diketone compounds |
| 03/02/1999 | US5877353 Process for the preparation of benzophenone derivatives |
| 03/02/1999 | US5877190 Substituted biphenyl compounds |
| 02/28/1999 | CA2243640A1 Mono and di-derivatives of cyclodextrins, their synthesis and purification and their use as support |
| 02/25/1999 | WO1999008995A1 Method for treating aqueous solutions comprising acids and nitrated compounds |
| 02/25/1999 | DE19736366A1 Isolating anionic substances e.g. protein, nucleic acids, from aqueous systems |
| 02/24/1999 | EP0897907A1 Process for the recovery of nitric acid in a mixture of aromatic dinitro compounds |
| 02/24/1999 | EP0897747A1 Nitration or carboxylation catalysts |
| 02/24/1999 | CN1042222C Process for prepn. of cyclopentene, cyclopentane and cyclohexane derivatives |
| 02/23/1999 | US5874654 Contacting nitroaromatic compounds containing hydroxynitroaromatic compounds as an impurity with hydrogen peroxide or javelle water oxidizer, thereafter neutrilizing with alkali/alakaline metal hydroxide, carbonate, bicarbonate |
| 02/23/1999 | US5874611 A chemical intermediate for chroman derivatives useful as a blood sugar-lowering agent |
| 02/11/1999 | WO1999006339A1 Method for preparing substituted benzyl bromides |
| 02/04/1999 | WO1999005087A1 Nitration process for diphenyl ethers |
| 01/28/1999 | WO1999003802A1 Catalysed fluorination of carbonyl compounds |
| 01/13/1999 | EP0782559B1 New method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde |
| 01/13/1999 | CN1204646A New alpha-phenoxy-alkanols, their methods of preparation and their applications |
| 01/12/1999 | US5859053 Acetylsalicylic acid nitrates |
| 01/07/1999 | EP0888261A1 Process for preparing nitrobiphenylene |
| 12/30/1998 | EP0793639B1 Method for preparing nitrobenzene derivatives |
| 12/23/1998 | EP0885868A1 Oxidation-process for the production of aldehydes and ketones in the presence of nitrogen-containing compounds |
| 12/23/1998 | EP0885179A1 Process for producing fluorinated aromatics and fluorinated nitrogen-containing hetero-aromatics |
| 12/17/1998 | WO1998056506A1 Systems and methods for parallel synthesis of compounds |
| 12/10/1998 | WO1998055446A1 Process for the preparation of thioether-substituted aromatic ketones |
| 12/10/1998 | DE19723961A1 Selective preparation of (hetero)aromatic aldehyde or ketone comprises converting alcohol using mediator and oxidising agent |
| 12/09/1998 | EP0686141B1 New process for the nitration of aromatic compounds in mild, non-corrosive conditions |
| 12/08/1998 | US5847240 Process for reducing tetranitromethane in compositions containing nitroaromatic compounds |
| 12/08/1998 | US5847231 Selective nitration of phenol derivatives |
| 12/08/1998 | US5847198 Process for the preparation of esters |
| 12/02/1998 | EP0880498A2 Process for preparing diketone compounds |
| 12/02/1998 | CN1200722A Process for purifying diphenyl ether compound |
| 11/24/1998 | US5840983 Process for preparing 2-trifluoromethoxy-aniline |
| 11/18/1998 | EP0877607A1 Biphenyl compounds and use thereof as oestrogenic agents |
| 11/11/1998 | EP0717729B1 Cis-dihydroxycyclohexadienes and their preparation |
| 11/11/1998 | CN1198435A Method for producing fluorescent whitening agent |
| 11/11/1998 | CN1040640C O-nitrophenyl cylopropylketone and O-aminophenyl cyclopropylketone, and method for preparation thereof |
| 10/28/1998 | EP0873989A2 Process for the preparation of distyryl-biphenyl compounds |
| 10/28/1998 | EP0873988A2 Process for the preparation of distyryl-biphenyl compounds |
| 10/28/1998 | CN1197065A Process for production of distyryl-biphenyl fluorescent whitening agents |
| 10/28/1998 | CN1040427C Process for the prepn. of dinitrotoluene |
| 10/27/1998 | US5827538 Controlled release of the water-insoluble core after imbibement of water vapor and wetting of a porous wall of semipermeable hydrophobic membrane impervious to liquid water; drug delivery |
| 10/22/1998 | WO1998046557A1 Production of aromatic amines by means of novel hydrogenation catalysts |
| 10/22/1998 | WO1998046547A1 Process for preparing 2-aryl-substituted indenes |
| 10/22/1998 | DE19715746A1 Herstellung von aromatischen Aminen mittels neuer Hydrierkatalysatoren Preparation of aromatic amines by hydrogenation of new |
| 10/22/1998 | CA2258747A1 Process for preparing 2-aryl-substituted indenes |
| 10/20/1998 | US5824622 Porous microcomposite of perfluorinated ion-exchange polymer and metal oxide, a network of silica, or a network of metal oxide and silica derived via a sol-gel process |
| 10/14/1998 | CN1196045A Process for nitrating diphenyl ether compounds |
| 10/13/1998 | US5821374 Oxidation of primary and secondary alcohol with organic chloro compound as oxidizer and a heterocyclic oxidation catalyst to corresponding ketone or aldehyde |
| 10/13/1998 | US5820764 Forming salts with neutralizing wash; seperating aqueous phase from organic phase; recycling portions of aqueous phase back to wash to concentrate by-products; periodically draining and replenishing portions of wash; destroying drained fraction |
| 10/07/1998 | EP0649424B1 Dioxcyclobutene derivatives as angiotensin ii antagonists |
| 10/06/1998 | CA1340073C Process for the production of dinitrotoleune or mononitrobenzene |
| 10/01/1998 | WO1998042654A1 Process for the separation of nitrotoluic acid isomers |
| 10/01/1998 | WO1998042653A1 Process for producing carboxylic acid esters and catalyst |
| 09/17/1998 | WO1998040347A1 Process for the purification of substituted p-nitrodiphenylethers |
| 09/11/1998 | WO1998039099A1 Apparatus and methods for the preparation of chemical compounds |
| 09/02/1998 | EP0799091B1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization |
| 09/01/1998 | US5801245 Anagrelide intermediate, from 2,3-dihalotoluene |
| 09/01/1998 | US5801120 Substituted benzoyl (hetero) cyclic diones |
| 08/20/1998 | WO1998035932A1 PROCESS FOR PRODUCING 3-NITRO-o-TOLUIC ACID |
| 08/04/1998 | US5789618 Synthetic method for a halogen-containing condensation product |
| 07/30/1998 | WO1998032532A1 Amidophosphonium-salt-containing catalyst for halogen-fluorine exchange reactions |
| 07/30/1998 | DE19702432A1 4-Nitro-ortho-xylene preparation |
| 07/30/1998 | DE19702282A1 Katalysator für Halex-Reaktionen Catalyst for Halex reactions |
| 07/30/1998 | CA2278533A1 Catalyst comprising and amidophosphonium salt for halex reactions |
| 07/29/1998 | EP0855379A1 Methods for the preparation of benzophenones derivatives |
| 07/29/1998 | EP0722434B1 Nitric esters having anti-inflammatory and/or analgesic activity and process for their preparation |
| 07/29/1998 | CN1188755A Methods for preparation of benzophenone derivatives |
| 07/28/1998 | US5786494 Process for the synthesis of α-substituted acrylic acids and their application |
| 07/28/1998 | US5786375 Fungicides |
| 07/22/1998 | CN1188102A Method for separating alpha, alpha'-dinitroanthragquinone isomer |
| 07/21/1998 | US5783737 Process for the preparation of 3-carboxy-4-hydroxybenzaldehides and derivatives thereof |
| 07/16/1998 | WO1998030329A1 Nitration or carboxylation catalysts |
| 07/15/1998 | CN1187485A Aryne intermediates and process for preparation thereof |
| 07/14/1998 | US5780495 Nitric esters having anti-inflammatory and/or analgesic activity and process for their preparation |
| 07/08/1998 | EP0852224A1 Aryne intermediates towards the preparation of herbicidal sulfamoyl urea and a process for their preparation |
| 07/08/1998 | EP0851853A1 Process for the purification of diphenyl ether compounds |
| 07/08/1998 | EP0851852A1 Process for nitrating diphenyl ether compounds |
| 07/08/1998 | EP0809631A4 Process for preparing 2-oxindoles and n-hydroxy-2-oxindoles |
| 07/01/1998 | EP0850915A1 Method for producing nitro compounds |
| 07/01/1998 | EP0850902A1 Process for reducing the level of trisubstituted phosphine, arsine and/or stibine oxide in a mixture |
| 06/30/1998 | US5773651 Process for the preparation of fluorine-containing chemical compounds |
| 06/24/1998 | EP0849244A1 Process for the preparation of distyryl-biphenylic compounds |
| 06/23/1998 | CA2222854A1 Triphenylphosphine oxide complex process |
| 06/18/1998 | WO1998025918A1 Analgesic, anti-inflammatory and anti-thrombosis esters of nitrated cycloaliphatic alcohols |
| 06/17/1998 | EP0847984A1 A continuous process for the dinitration of aromatic substrates |
| 06/12/1998 | CA2221811A1 A continuous process for the dinitration of aromatic substrates |
| 06/11/1998 | WO1998024753A1 Optically active nitro alcohol derivatives, optically active amino alcohol derivates, and process for preparing the same |
| 06/09/1998 | US5763697 Reaction of nitric acid and sulfuric acid with aromatic compound |
| 06/09/1998 | US5763696 Removal of dinitrotoluene from process water |
| 06/09/1998 | US5763689 Reductive fission reaction using hydrogenation reaction or metal hydride to selectively cleave substituent at 3-position of disubstituted cyclic diene |
| 06/09/1998 | US5763687 Nitrating in presence of a mixed acids in a chemical reactor with special design twisted tubes inside for controlling the reaction, by-product inhibition |
| 05/27/1998 | CN1038504C Cyclopentane derivatives |
| 05/26/1998 | US5756867 Recovery of nitric acid from nitration processes |
| 05/26/1998 | US5756834 Process for preparing fluorinated aromatics |
| 05/26/1998 | US5756831 Process for the preparation of 5-fluoro-2-nitrobenzoic acid |
| 05/14/1998 | WO1998019978A1 Nitration process |