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)
05/2005
05/26/2005US20050113596 Nitrating a 2-(2-formylphenoxy) or 2-(2-formylphenylsulfido) alkyl ester or alkoic acid in the presence of sulfuric acid
05/25/2005EP1532098A1 Process for preparing nitrooxyderivatives of naproxen
05/25/2005CN1203045C Method for preparing 4-chlorine-3-nitro methyl-phenoxide
05/25/2005CN1203040C Method for synthesizing diaryl ether by using amino acid as additive
05/19/2005US20050107646 Process for the production of 1,5-dinitronaphthalene
05/18/2005EP0946173B1 Preparation of 3-fluoro oxindole derivatives
05/18/2005CN1202071C Pollution-free nitrifying process using composite metal complex to catalyze aromatic compound
05/12/2005WO2005000803A8 Asymmetric urea compound and process for producing asymmetric compound by asymmetric conjugate addition reaction with the same as catalyst
05/12/2005US20050101787 Reaction of metal complex and nitrogen compound to form nitro or nitrile complex
05/11/2005EP1529772A1 Process for the production of 1,5-dinitronaphthalene
05/11/2005CN1613843A Preparation of p-nitrophenoxide sodium
05/10/2005US6891069 Brominating 4-substituted-o-xylene to form 4-substituted-1, 2-bis(dibromomethyl)benzene, reacting with sulfuric acid, adding solid sodium bicarbonate, adding water, hydrolyzing reaction product to 4-substituted-benzene-1,2-carbaldehyde
05/05/2005US20050096471 Process for producing biaryl compound
05/04/2005EP1526917A2 Novel nickel-carbene, palladium-carbene and platinum-carbene complexes, their production and use in catalytic reactions
05/03/2005US6888032 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
04/2005
04/28/2005WO2005037766A1 Method for extracting nitrocresols from waste water produced in the manufacture of mononitrotoluene and use of said extract
04/28/2005US20050090543 Method for the preparation of tetrahydrobenzothiepines
04/27/2005CN1198786C Process for preparation of naproxene nitroxyalkylesters
04/20/2005EP1015414B1 Method for producing a dinitronaphthalene-isomer mixture having a high 1,5-dinitronaphthalene proportion
04/14/2005US20050080262 Process for producing quinazolin-4-one derivative
04/13/2005CN1196669C Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers
04/06/2005EP1519911A1 Nitrophenol preparation method
04/06/2005EP1246796B1 Process for the preparation of diphenyl ether compounds
03/2005
03/23/2005EP1147074B1 Synthesis method of nitroxymethylphenyl esters of aspirin derivatives
03/23/2005CN1597658A Preparation method of 3-methyl-2-[5-(2-chloro-4-trifluoro methyl phonoxy) -2- nitrobenzoxy]-3-ethyl isocrotonate
03/23/2005CN1597657A Diphenyl ether kind compound and its synthesis method
03/23/2005CN1193980C Method for synthesizing stereoselectvely and efficiently diphenyl butane lignan compound
03/17/2005WO2005023745A1 Process for producing aromatic aldehyde
03/16/2005EP0812308B1 Method for synthesis of aryl difluoromethyl ethers and the like
03/15/2005US6867336 Method for the continuous production of 2-bromo-2-nitro-1,3-propanediol
03/09/2005EP1512678A1 Process for preparing optically active nitro compounds and cyano compounds
03/08/2005US6864394 Method for producing ketones from carboxylic acid anhydrides
03/03/2005WO2005000803A3 Asymmetric urea compound and process for producing asymmetric compound by asymmetric conjugate addition reaction with the same as catalyst
03/02/2005EP1294658B1 Process for the preparation of nitroalkenes
03/02/2005CN1191228C Synthesis method of nitroxymethylphenyl esters of aspirin derivatives
03/01/2005US6861527 Nitration in a static micromixer
02/2005
02/23/2005EP1508563A1 Two step process for the production of Dinitrotoluene
02/23/2005CN1190415C Method fo preparing aceotphenone compound
02/23/2005CN1190410C Method for preparing 1-nitro-ethyl-nitrobenzene compound
02/17/2005US20050038282 Countercurrent contacting of nitrogen monoxide gas with aqueous solution containing alkyl alcohol and nitric acid; efficiency
02/16/2005CN1580036A Method for synthesizing 10-P-nitrobenz-oxy-capric acid
02/15/2005US6855842 Nitrating a 2-(2-formylphenoxy) or 2-(2-formylphenylsulfido) alkyl ester or alkoic acid in the presence of sulfuric acid
02/09/2005CN1576240A Process for working up secondary components in the preparation of dinitrotoluene
02/09/2005CN1576236A Process for working up the wastewater obtained in the preparation of dinitrotoluene
02/03/2005DE10329304A1 Verfahren zur Aufarbeitung des bei der Herstellung von Dinitrotoluol anfallenden Abwassers The method for the reprocessing of the waste in the production of dinitrotoluene wastewater
02/03/2005DE10329303A1 Verfahren zur Aufarbeitung des bei der Herstellung von Dinitrotoluol anfallenden Abwassers The method for the reprocessing of the waste in the production of dinitrotoluene wastewater
02/02/2005CN1572787A Method for synthesis of aspirin nitroxymethylphenyl esters and its derivatives
02/02/2005CN1572784A Process for preparing aromatic amines
02/01/2005US6849768 Improved solid acid catalysts
01/2005
01/26/2005EP1500432A1 Method for preparing ruthenium-carrying alumina and method for oxidizing alcohol
01/19/2005CN1566074A 4-methyl-3-nitrophenols and preparation method thereof
01/18/2005US6844464 Process for producing alkyl nitrite
01/13/2005US20050010068 Use of microencapsulated transition metal reagents for reactions in supercritical fluids
01/12/2005EP1496043A1 Process for treating the waste water of the dinitrotoluene production process
01/12/2005EP1494991A1 Analogous compounds of strobilurines and their use as acaricides and insecticides
01/12/2005CN1562958A Technique for preparing 4-methyl-2, 6 o-nitro-p-cresol
01/11/2005US6841499 Homogeneous rhodium complexes bearing phosphines
01/06/2005WO2005000803A2 Asymmetric urea compound and process for producing asymmetric compound by asymmetric conjugate addition reaction with the same as catalyst
01/05/2005EP1493730A1 Process for working up side products of the dinitrotoluene production
01/05/2005CN1561333A Aromatic and heteroaromatic acid halides for synthesizing polyamides
01/05/2005CN1561326A Alpha-haloenamine reagents
12/2004
12/30/2004US20040267062 Process for working up secondary components in the preparation of dinitrotoluene
12/30/2004US20040267061 Process for the two-step production of dinitrotoluene
12/30/2004US20040262238 Process for working up the waste water obtained in the preparation of dinitrotoluene
12/29/2004CN1558894A Method for the nitration of phenolic compounds
12/29/2004CN1557801A Process for producing high-purity pentachloro nitrobenzene
12/29/2004CN1182110C Process for preparation of diphenyl ether compounds
12/29/2004CA2529963A1 Pharmaceutical compositions based on diclofenac derivate
12/23/2004US20040260880 Method, system, and apparatus for an hierarchical cache line replacement
12/16/2004US20040254066 Dissolving or dispersion forming emulsion; transition metal catalyst encapsulated within a permeable polymer; catalyst for foirming polyol from olefin
12/16/2004CA2528453A1 Process for the preparation of aryl diazonium salts and reaction with nucleophiles
12/09/2004WO2003048090A8 The use of microencapsulated transition metal reagents for reactions in supercritical fluids
12/09/2004US20040249213 Reacting the aromatic hydrocarbon(s) with a mixture of nitric acid and sulfuric acid , separating reaction mixture, washing the organic phase to purify the nitroaromatic compound; hydrogenating the nitroaromatic compound in the presence of a catalyst to produce an an aromatic amine and water
12/09/2004US20040249185 Process for the arylation of aza-heterocycles with activated aromatics in presence of caesium carbonate
12/08/2004EP1484312A1 Process for preparing aromatic amines
12/08/2004CN1552692A Preparation of 1-Cl-4,8-dinitronaphthalene and 4-cl-1,8-dinitronaphthalene
12/02/2004WO2004103951A1 Method for producing an optically active nitro compound
12/02/2004WO2004103550A1 Microchannel with internal fin support for catalyst or support medium
12/02/2004US20040242942 produces high yield from an industrially easily available material by using a substance with which the reaction operation is simple and handling is easy, with a small number of steps under moderate reaction conditions
12/02/2004CA2829163A1 Oxidation process using microchannel technology and novel catalyst useful in same
12/02/2004CA2525733A1 Microchannel with internal fin support for catalyst or sorption medium
12/01/2004EP1481958A1 Production of organic compounds which are low in fluoride
11/2004
11/30/2004US6825383 Catalytic process for regiospecific chlorination of alkanes, alkenes and arenes
11/24/2004CN1176899C Nitration process for diphenyl ethers
11/18/2004US20040229752 converting hydrocarbons to carbon monoxide and hydrogen in chemical reactors having oxidation catalysts within microstructure passageways; further converting the chemical intermediates to carbon dioxide and water; catalysis
11/18/2004US20040228781 Microchannel with internal fin support for catalyst or sorption medium
11/17/2004EP1477481A1 Process for producing quinazolin-4-one derivative
11/17/2004CN1546458A Preparation of o-nitrobenzaldehyde by biomimetic catalysis oxidation of o-nitrotoluene with oxygen
11/17/2004CN1546457A Preparation of o-nitrobenzaldehyde by biomimetic catalysis oxidation of o-nitrotoluene with oxygen
11/17/2004CN1546456A Trihydroxymethyl hexane trinitrate and its making method
11/11/2004WO2004096750A1 Process for producing 3-nitro-4-alkoxybenzoic acid
11/11/2004CA2523356A1 Method of preparing a ring compound having two adjacent chiral centers
11/03/2004EP1473286A1 Process for producing biaryl compound
11/03/2004EP1472185A2 Nanocrystalline inorganic based zeolite and method for making same
11/02/2004US6812186 Using reaction product of diisopropylamine and metal hydroxide
10/2004
10/27/2004CN1539746A Green nitrifying method by using Hf compound to catalyze compounds of phenols and aromatic ether
10/27/2004CN1172901C Method for separating alpha, alpha'-dinitroanthragquinone isomer
10/26/2004US6809218 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide
10/20/2004EP1468983A1 Process for producing 2,5-bis(trifluoromethyl)nitrobenzene
10/20/2004CN1538949A Method for cntinuous production of 2-bromo-2-nitro-1, 3-propan ediol
1 ... 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 ... 58