Patents
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)
04/1997
04/23/1997EP0670825B1 Nitric esters having a pharmacological activity and process for their preparation
04/15/1997US5621000 Nitric esters having a pharmacological activity and process for their preparation
04/01/1997US5616818 Reacting aromatic compound with nitronium ion solution under adiabatic conditions in emulsion reaction medium
03/1997
03/26/1997CN1145893A Rocovery of nitric acid from nitration processes
03/20/1997WO1997010200A1 Process for the purification of diphenyl ether compounds
03/20/1997WO1997010199A1 Process for nitrating diphenyl ether compounds
03/18/1997CA2092407C Process for the preparation of 2,3-difluoro-6-nitrophenol
03/12/1997EP0641308B1 Process for preparing n-aliphatic substituted p-phenylenediamines
03/04/1997US5608101 Substituted benzoyl (hetero)cyclic diones
02/1997
02/12/1997CN1142486A Process for production of dinitrotoluene and isomeric mixtures of dintrotoluene
02/12/1997CN1142483A Preparation of alpha-chloroalkyl aryl ketones
02/11/1997US5602285 Etherification of phenethyl alcohol with primary aliphatic alcohol in presence of acid catalyst
02/04/1997US5600035 Photoresists; polymer monomers
01/1997
01/09/1997WO1997000848A1 A process for the preparation of esters
01/08/1997EP0752407A2 Process for the preparation of halogenated condensation products by simultaneous condensation and halogenation
01/02/1997EP0751115A1 Process for the preparation of 5-fluoro-2-nitrobenzoic acid
01/02/1997EP0751112A2 Process for preparing aryliden substituted alkylcycloalkanones
01/02/1997EP0751111A2 Process for preparing 2,2-dialkylaryliden-cycloalkanones
01/02/1997EP0750605A1 One-step preparation of 4, 6-dinitroresorcinol from resorcinol
12/1996
12/31/1996US5589598 Process of purification of 2,6-diisopropylphenol
12/31/1996US5589037 Method for removing tetranitromethane from nitric acid
12/24/1996US5587485 Catalytic oxidation of the corresponding alkyl substituted benzene compound
12/18/1996EP0748788A1 Process for the preparation of dinitrotoluene
12/15/1996CA2178699A1 Process for the production of dinitrotoluene and isomeric mixtures of dinitrotoluene
11/1996
11/28/1996WO1996037454A1 Method for preparing 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof
11/27/1996EP0744392A1 A new one-pot process for the preparation of 7-aryl-2,6-disubstituted quinone methides
11/27/1996EP0744391A1 Process for the preparation of aromatic acetyles using palladacyclen as acatalysts
11/27/1996CA2177327A1 One-pot process for the preparation of 7-aryl-2,6-disubstituted quinone methides
11/21/1996WO1996036587A1 Catalytic nitration
11/20/1996CN1136034A Preparation of bitter taste acid
11/19/1996US5576463 Oxidation
11/12/1996US5574188 Process for the preparation of 4,6-diaminoresorcinol
11/07/1996WO1996034848A1 Acetylsalicylic acid nitrates
11/07/1996DE19515970A1 Acetylsalicylsäurenitrate Acetylsalicylsäurenitrate
10/1996
10/30/1996EP0739239A1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide
10/29/1996US5569774 Process for the preparation of chlorine-substituted olefins
10/28/1996CA2175135A1 Process for preparing aromatic acetylenes using palladacycles as catalysts
10/22/1996US5567854 Distillation in the presence of a stabilizer, such as, monomeric and/or polymeric aromatic amines and/or phenols and/or n- and s-containing phenothiazines
10/16/1996CN1133590A Butenol-triazolyl derivatives, their manufacture and use as microbicides
10/15/1996US5565586 Oxidative process for the preparation of allyl quinone derivatives
10/09/1996EP0736514A1 Nitric acid recovery from nitriding processes
10/09/1996EP0735999A1 A method of cleaving arylethers
10/09/1996EP0632799B1 Process for producing chlorine-substituted olefine compounds
10/02/1996EP0735016A1 Process for the preparation of alpha-chloroalkylarylketones
10/02/1996EP0734363A1 Fluorination process
09/1996
09/25/1996CN1131661A Process for preparation of 4,6-diaminoresorcinol
09/18/1996EP0601138B1 Method of preparing 5-alkoxy-2,4-dinitroalkylbenzene compounds
09/11/1996EP0731083A1 Process for the producing of alkylcyclopentanone derivatives
09/10/1996US5554299 Treatment/removal of byproduct aqueous effluents comprising hydroxynitroaromatic compounds
09/04/1996EP0729936A1 Process for the synthesis of alpha substituted acrylic acids and their application
09/04/1996EP0589948B1 Method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
09/04/1996CN1130181A Method for producing amide acetate and caprolactam
08/1996
08/27/1996US5550165 Containing 4-hydroxyphenylpyruvate dioxygenase inhibiting amount of 2-(2-nitro-4-trifluoromethylbenzoyl)-1,3-cyclohexanedione
08/21/1996EP0705239A4 Process for preparing phenethanol ethers
08/13/1996US5545768 Controlled heating of dichloronitrobenzene with alkali metal fluoride
08/08/1996WO1996023770A1 Process for preparing 2-oxindoles and n-hydroxy-2-oxindoles
08/08/1996WO1996023754A1 Method for synthesis of aryl difluoromethyl ethers and the like
08/08/1996CA2210695A1 Process for preparing 2-oxindoles and n-hydroxy-2-oxindoles
08/07/1996EP0725049A1 Process for preparing aromatic olefins by palladacycle catalysis
08/06/1996US5543560 Hydrogenolytic reduction of peroxidic ozonolysis products
08/06/1996US5543548 Continuous vapor phase reaction of carbon monoxide and methyl nitrite using a heterogeneous catalyst of platinum; heating and pressurization; reacting nitrogen oxide product with oxygen and methanol to form usable methyl nitrite
07/1996
07/24/1996EP0722434A1 Nitric esters having anti-inflammatory and/or analgesic activity and process for their preparation
07/18/1996WO1996021638A1 Novel compounds
07/17/1996EP0721441A1 Halogenation reactions
07/11/1996DE19520002C1 Nitriding organic material in wide pH range
07/03/1996EP0719260A1 Butenol-triazolyl derivatives, their manufacture and use as microbicides
07/03/1996CN1125934A Process for preparing phenethanol ethers
07/03/1996CN1125723A Process for the polynitration of aromatic compounds
06/1996
06/27/1996WO1996019288A1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization
06/26/1996EP0717729A1 Cis-dihydroxycyclohexadienes and their preparation
06/19/1996EP0717025A2 Process for the preparation of carbonyl compounds by catalytic oxidation of olefins and catalysts in microemulsion
06/11/1996US5525704 Aromatic thermosetting resin comprising aromatic diamine and bismaleimide monomers; flexibility, workability and moldability
05/1996
05/23/1996WO1996015091A1 Synthesis of bis(2,2-dinitropropyl)acetal (bdnpa)
05/23/1996WO1996015090A1 Synthesis of bis(2,2-dinitropropyl)formal (bdnpf)
05/23/1996CA2205300A1 Synthesis of bis(2,2-dinitropropyl)acetal (bdnpa)
05/23/1996CA2205227A1 Synthesis of bis(2,2-dinitropropyl)formal (bdnpf)
05/15/1996EP0711146A1 Osmotic devices having vapor-permeable coatings
05/08/1996EP0710644A1 Process for the preparation of 4,6-diaminoresorcinol
05/07/1996CA1338314C Ligand-accelerated catalytic asymmetric dihydroxylation
05/01/1996CN1121507A Process for the production of dinitrotoluence
05/01/1996CN1121506A Process for the production of dinitrotoluene
04/1996
04/24/1996EP0708076A2 Process for the dinitration of aromatic compounds
04/24/1996CN1121067A A process for the production of nitroaromatic compounds
04/24/1996CN1121066A A process for the production of dinitrotoluene
04/18/1996CA2160520A1 Process for the polynitration of aromatic compounds
04/17/1996EP0706993A1 Method of purifying acifluorfen
04/17/1996CN1120529A Method of purifying acifluorfen
04/11/1996WO1996010561A1 2-aroylcyclohexandiones, process for preparing the same and their use as herbicides or plant growth regulators
04/11/1996CA2200497A1 2-aroylcyclohexanediones, their preparation and their use as herbicides or plant growth-regulating agents
04/10/1996EP0705239A1 Process for preparing phenethanol ethers
04/04/1996WO1996010010A1 Method for preparing nitrobenzene derivatives
04/04/1996WO1996010004A1 Process for the purification of 2,6-diisopropylphenol
04/04/1996DE4434987A1 2-Aroylcyclohexandione, Verfahren zu ihrer Herstellung sowie ihre Verwendung als Herbizide oder das Pflanzenwachstum regulierende Mittel 2-aroylcyclohexanediones, processes for their preparation and their use as herbicides or plant growth regulating agents
04/04/1996CA2197903A1 Method for preparing nitrobenzene derivatives
04/03/1996EP0704426A1 Process for the separation of mixtures of nitrobenzaldehyde isomers
03/1996
03/28/1996WO1996009274A1 New method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
03/26/1996US5502260 Process for preparing multiply fluorinated nitrobenzenes
03/20/1996CN1118776A Preparation of nitro phenol
03/19/1996US5500189 Apparatus for crystallization of organic matter
03/13/1996EP0700895A2 Process for the selective preparation of fluorinated aromatic amines and fluorinated aromatic amines with particularly low contents of defluorinated portions
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