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)
04/1998
04/23/1998WO1998016486A1 Process for the preparation of substituted aromatic compounds
04/23/1998WO1998016222A1 Preparation of 3-fluoro oxindole derivatives
04/23/1998CA2268304A1 Process for the preparation of substituted aromatic compounds
04/21/1998US5741937 Reaction of alkyl-substituted cycloalkanones and aromatic carbonyl compounds in presence of basic catalyst and water
04/21/1998US5741936 Nitrating 3-chloro-4*-methoxybenzophenone with nitric acid in 65 to 85% strength sulfuric acid as reaction medium
04/08/1998EP0834508A1 Substituted biphenyl or phenylpyridine derivatives, process for their preparation and pharmaceutical compositions containing them
04/08/1998EP0833811A1 A process for the preparation of esters
03/1998
03/31/1998US5734073 Halogenation reactions
03/31/1998US5733479 Positive photoactive compounds based on 2,6-dinitro benzyl groups
03/25/1998CN1177347A Process for preparing 2 -oxindoles and N -hydroxy -2 -oxindoles
03/24/1998US5731477 Without using chlorofluorocarbon gases
03/17/1998US5728901 Perfluoroalkyl sulfonates, fluorosulfonates, hexafluorophosphates, nitrates
03/12/1998WO1998009937A1 Process for the production of dinitrate esters
03/12/1998CA2264935A1 Process for the production of dinitrate esters
03/04/1998CN1174829A Selective nitration of phenol derivatives
02/1998
02/26/1998DE19723214A1 Preparation of 4-nitro:phenol derivative pharmaceutical intermediates
02/18/1998EP0823891A1 Acetylsalicylic acid nitrates
02/17/1998US5719317 Palladium-on-charcoal catalyzed dehalogenation of a 2-<4-halo-3-nitro-)carboxyalkyl compound with triethylammonium formate; by-product inhibition
02/12/1998WO1998005610A2 Process for preparing fluorine-containing compounds
02/03/1998US5714647 Process for the adiabatic preparation of mononitrohalogenobenzenes
01/1998
01/28/1998EP0820981A1 Process for the preparation of 2-trifluoromethoxy-aniline
01/28/1998EP0792254A4 Synthesis of bis(2,2-dinitropropyl)acetal (bdnpa)
01/28/1998EP0790972A4 Synthesis of bis(2,2-dinitropropyl)formal (bdnpf)
01/27/1998US5712226 Optically active D-pyridyloxy phenoxy propionate herbicides
01/22/1998WO1998002408A1 Nitrosation method of a phenolic composition substituted by an electro-attracting group and use thereof
01/22/1998CA2259931A1 Nitrosation method of a phenolic composition substituted by an electro-attracting group and use thereof
01/20/1998US5710343 Method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
01/20/1998US5710342 Process for preparing carbonyl compounds by catalysed oxidation of olefins and catalysts present microemulsions
01/20/1998US5710341 Preparation of α-chloroalkyl aryl ketones
01/20/1998US5710334 Aromatic dinitro and diamino intermediates
01/14/1998CN1170373A Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization
01/14/1998CN1169984A Method for extracting nitrochlorbenzene from wastes of producing p-/o-nitrochlorbenzene
12/1997
12/30/1997CA1339611C Cyclopentane derivatives
12/23/1997US5700947 Having reduced side effects
12/23/1997US5700762 Substituted benzoyl (hetero) cyclic diones
12/17/1997EP0812538A1 Preservative compositions
12/17/1997EP0812308A1 Method for synthesis of aryl difluoromethyl ethers and the like
12/16/1997US5698755 Process for preparing aromatic olefins using palladacycle catalysis
12/11/1997WO1997046511A1 Coumpounds active at a novel site on receptor-operated calcium channels useful for treatment of neurological disorders and diseases
12/09/1997US5696305 Continuous reacting an aromatic compound with a nitrating agent
12/04/1997WO1997045397A1 Alkyloxyamino substituted fluorenones and their use as protein kinase c inhibitors
12/03/1997EP0809631A1 Process for preparing 2-oxindoles and n-hydroxy-2-oxindoles
11/1997
11/18/1997US5689018 Nitration of toluene in the presence of sulfuric acid
11/12/1997EP0805800A1 Method for preparing (+)compactin and (+)mevinolin analog compounds having a beta-hydroxy-delta-lactone grouping
11/12/1997CN1164852A New method for preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
10/1997
10/29/1997EP0802897A1 Novel compounds
10/28/1997US5681979 Process for the producing of alkylcyclopentanone derivatives
10/23/1997WO1997038967A1 Reducing tetranitromethane in compositions containing nitroaromatic compounds
10/23/1997WO1997038770A1 Removal of dinitrotoluene from process water
10/21/1997US5679873 Reacting toluene with sulfuric acid, nitric acid, water under adiabatic conditions, separating reaction mixture, removing water from acid phase, adding nitric acid, recycling, nitrating nitrotoluene formed, recovering dinitrotoluene
10/15/1997EP0649401B1 Process for the production and recovery of halonitroalkanes in high yield
10/08/1997EP0799091A1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization
10/02/1997WO1997028122A3 Process for preparing diketone compounds
09/1997
09/23/1997CA1339470C Method for the production of hns ii
09/18/1997WO1997033846A1 Process for preparing nitrobiphenylene
09/17/1997CN1159800A 2-aroylcyclohexandiones, process for preparing the same and their use as herbicides or plant growth regulators
09/12/1997WO1997032832A1 Process for producing fluorinated aromatics and fluorinated nitrogen-containing hetero-aromatics
09/12/1997CA2248294A1 Process for producing fluorinated aromatics and fluorinated nitrogen-containing hetero-aromatics
09/11/1997DE19608791A1 Verfahren zur Herstellung von fluorierten Aromaten und fluorierten stickstoffhaltigen Heteroaromaten A process for the preparation of fluorinated aromatics and fluorinated nitrogen-containing heteroaromatics
09/10/1997EP0793639A1 Method for preparing nitrobenzene derivatives
09/10/1997CN1159187A Heterocyclic-and carbocyclic-substituted benzoic acids and synthesis thereof
09/03/1997EP0792254A1 Synthesis of bis(2,2-dinitropropyl)acetal (bdnpa)
09/03/1997EP0610384B1 Process for the preparation of fluorinated benzoic acids
09/02/1997US5663462 Continuous, one step process
09/02/1997US5663447 Process for the preparation of 2,2 dialkyl-arylidene-cycloalkanones
08/1997
08/27/1997EP0790972A1 Synthesis of bis(2,2-dinitropropyl)formal (bdnpf)
08/26/1997US5661104 Preservative compositions for use in aqueous systems
08/13/1997CN1156713A Process for oxidation of primary or secondary alcohols
08/07/1997WO1997028122A2 Process for preparing diketone compounds
08/07/1997WO1997027846A1 Biphenyl compounds and use thereof as oestrogenic agents
08/07/1997CA2242532A1 Process for preparing diketone compounds
07/1997
07/16/1997EP0783487A1 2-aroylcyclohexandiones, process for preparing the same and their use as herbicides or plant growth regulators
07/16/1997EP0783473A1 Process for the purification of 2,6-diisopropylphenol
07/15/1997US5649322 Process for the preparation of C1 -C4 -alkyl nitrites
07/15/1997US5648565 Process for the adiabatic preparation of mononitrotoluenes
07/15/1997US5648556 Synthesis of bis(2,2-dinitropropyl)acetal (BDNPA)
07/09/1997EP0782559A1 New method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
07/08/1997CA2028313C Aromatic diamine compounds, and methods for their preparation
07/02/1997EP0781757A1 Process for the preparation of fluorinated benzoic acids
06/1997
06/26/1997WO1997022590A1 Nitration of aromatic compounds
06/26/1997CA2240644A1 Nitration of aromatic compounds
06/18/1997EP0779270A1 Preparation process for aromatic mononitro compounds
06/11/1997EP0778258A2 Process for the preparation of ethyl-n-(2,3 dichloro-6-nitrobenzyl) glycine
06/11/1997EP0778081A1 Process for preparing fluorine containing chemical compounds
06/11/1997CN1151392A High selection and high effective synthetic method and use of functional (Z,E) conjugated bi-alkene compound
06/05/1997WO1997019917A1 METHOD FOR PREPARING (+)COMPACTIN AND (+)MEVINOLIN ANALOG COMPOUNDS HAVING A β-HYDROXY-δ-LACTONE GROUPING
06/05/1997CA2171073A1 Process for the preparation of ethyl-n-(2,3 dichloro-6- nitrobenzyl) glycine
06/02/1997CA2191654A1 Process for the preparation of fluorine-containing chemical compounds
05/1997
05/28/1997EP0775684A1 Process for the oxidation of primary or secondary alcohols
05/28/1997CN1150795A Method for preparing 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof
05/28/1997CN1035002C Process for preparation of cyclopentene cyclopentane and cyclohexane derivatives
05/21/1997EP0773919A1 Method for preparing 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof
05/14/1997EP0773210A1 Process for the preparation of fluorinated aromatic compounds
05/14/1997EP0772598A1 Heterocyclic- and carbocyclic-substituted benzoic acids and synthesis thereof
05/12/1997CA2189945A1 Process for preparing fluorinated aromatics
05/09/1997CA2236045A1 Combinatorial dihydrobenzopyran library
05/07/1997EP0771783A1 Process for the nitration of aromatics
05/06/1997US5627191 Therapeutic agents
05/02/1997EP0770053A1 Positive photoactive compounds based on 2,6-dinitrobenzyl groups
04/1997
04/23/1997EP0769488A2 Process for the preparation of 3-chloro-3'-nitro-4' methoxybenzophenone
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