Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 273 - Preparation of urea or its derivatives, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups
Patents for C07C 273 - Preparation of urea or its derivatives, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups (3,705)
12/2003
12/24/2003CN1463264A Method for producing aromatic compound dimer
12/18/2003US20030232868 Cyclic carboxylic acids as integrin antagonists
12/17/2003EP1371637A1 Continuous process for the production of MDI allophanates
12/17/2003CN1131207C Process for preparing carbamide derivative by catalytic oxidation and oxonation of amine
12/17/2003CN1131206C Improved urea synthetic method and its equipment
12/16/2003US6664262 N-methoxymethyl-5,5-diphenylbarbituric acid
12/13/2003CA2430650A1 Continuous process for the production of mdi allophanates
12/09/2003US6660284 Anthraquinone compounds, manufacturing process, use as pigments and cosmetic composition
12/04/2003US20030225298 Reacting bis-(phosophonomethyl)urea or urea with carbon monoxide and formaldehyde in the presence of catalysts and solvents to form N-(phosphonomethyl)glycine
12/04/2003US20030225283 2-Substituted phenyl,3-polar ring,N-heroaromatic propion-amides, e.g., 1-(2-(3,4-Dichlorophenyl)-3-(tetrahydro-furan-2-yl)-propionyl)-3- methylurea; antidiabetic agents; increase the flux of glucose metabolism in beta-cells and hepatocytes
12/03/2003EP1366021A2 Substituted diarylureas as stimulators for fas-mediated apoptosis
12/03/2003EP0888176B2 Safety process for pressure equipment in contact with corrosive fluids
12/02/2003US6657083 5-acylamino-2-amino-4-substituted-phenol compounds and method of using them
11/2003
11/20/2003WO2003095438A1 Substituted phenylacetamides and their use as glucokinase activators
11/18/2003US6649795 Indirect heat exchange with a heating fluid having a different predetermined temperature, the temperature difference between carbamate aqueous solution and heating fluid is reduced to a value not higher than 70 degree C
11/18/2003US6649616 For therapy and prophylaxis of cardiovascular disorders caused by ischaemia
11/12/2003CN1455767A Substituted phenylcyclohexane carboxylic acid amides and use thereof
11/05/2003EP1358171A2 Novel urea derivatives, method for preparing same, use thereof as medicines, pharmaceutical compositions and novel use
10/2003
10/30/2003WO2003089379A1 Method for treating waste streams
10/30/2003CA2482710A1 Method for treating waste stream
10/29/2003CN1451651A Improved method and apparatus for combined drum granulating large granule urea
10/28/2003US6639040 Continuous process for the production of MDI allophanates
10/28/2003US6639023 Fluorophenyl resin compounds
10/23/2003WO2003087043A1 Process for the preparation of urea
10/22/2003EP1140745B1 Colchinol derivatives as vascular damaging agents
10/21/2003CA2023316C Urea production process with high energy efficiency
10/16/2003WO2003084923A1 Acyl-3-carboxyphenylurea derivatives, method for production and use thereof
10/16/2003WO2003084922A1 Acyl-4-carboxyphenylurea derivatives, method for production and use thereof
10/16/2003US20030192834 Wet oxidation of nitrogen oxides using hydraulic down- and updraft columns
10/16/2003CA2481819A1 Acyl-3-carboxyphenylurea derivatives, method for production and use thereof
10/16/2003CA2481817A1 Acyl-4-carboxyphenylurea derivatives, method for production and use thereof
10/14/2003US6632967 Process for the preparation of urea
10/09/2003WO2002083627A3 Ligands des integrins avss6
10/08/2003CN1123565C Process for preparing unsymmetric phenyl substituted urea
10/08/2003CN1123536C Process for combined prodn. of ammonia and urea
10/08/2003CN1123530C Process for prepn. of hydrogen-rich gas
10/07/2003CA2251003C New compounds, derivatives of n-aryl 2-hydroxyalkylamides
10/01/2003EP1135366B1 Method of introducing melamine off-gases into a urea plant
10/01/2003CN1122661C Process for synthesizing unsymmetrically substituted urea herbicides
09/2003
09/23/2003CA2098122C Anti-atherosclerotic aryl compounds
09/17/2003CN1443179A Aniline derivatives
09/17/2003CN1443177A Alpha-acyl and alpha-heteroatom-substituted benzene acetamide glucokinase activators
09/10/2003EP1342718A1 Method and reagents for n-alkylating ureides
09/10/2003EP1341755A1 Carboxylic acid amide derivatives and their use in the treatment of thromboembolic diseases and tumours
09/10/2003CN1440964A Production process of phenyl carbamide and/or diphenyl carbamide
09/04/2003WO2003072539A1 Phenethanolamine derivatives for treatment of respiratory diseases
09/02/2003US6613801 Method for the synthesis of compounds of formula I and their uses thereof
08/2003
08/27/2003EP1337466A1 Method for producing ammonia on the basis of a nitrogen-hydrogen mixture from natural gas
08/27/2003CN1438216A Method for increasing citrulline and hyperplasia-resisting factor active matter content in pumpkin seeds and method for extracting same
08/27/2003CN1119326C Process for preparing urea
08/20/2003EP0859591B1 Use of at least one no synthase inhibitor for treating sensitive skin
08/19/2003US6608218 Such as 1-(cyclopentyloxy-(3,4-dichloro-phenyl)-acetyl)-3-methyl-urea for treatment of diabetes
08/13/2003EP1334965A1 Process to prepare alkyl-ureas from O,S-dimethyl dithiocarbonate
08/13/2003EP1333918A1 Carbamate condensation unit
08/13/2003EP1333792A1 Novel coupler for use in oxidative hair dyeing
08/13/2003CN1436169A Process and plant for production of urea
08/07/2003WO2003064379A1 Process for the preparation of urea
08/06/2003CN1434796A Acylphenylurea derivatives, a process for their preparation and their use as pharmaceuticals
07/2003
07/30/2003CN1433400A Process for decomposing a carbamate, aqueous solution coming from the urea recovery section of a urea production plant
07/17/2003US20030135072 Process for the preparation of urea
07/17/2003US20030135063 Especially Type II diabetes; stimulating the kinase activity of the insulin receptor; activating the insulin receptor
07/16/2003EP1326828A1 Beta-amino acid derivatives as integrin receptor antagonists
07/16/2003EP1030846B1 Method for producing ar(alk)yluraciles, novel corresponding intermediate products and method for producing said intermediate products
07/16/2003CN1430601A Installation and process for preparation of urea
07/16/2003CN1430599A Phenylglycine derivatives
07/15/2003US6593327 Compounds and compositions as protease inhibitors
07/09/2003CN1113860C Method for preparing urea derivatives by catalytic oxidation and carbonylation of amine
07/08/2003CA2268974C Improved urea synthesis process and apparatus therefor
07/03/2003US20030125354 Aromatic compounds containing urea or thiourea groups are useful for terating cytokine mediated diseases
07/02/2003CN1427829A Substituted phenylacetamides and their use as glucokinase activators
07/02/2003CN1427818A Factor VIIA inhibitor (thio) urea derivatives, their preparation and their use
07/01/2003US6586629 Method of introducing melamine off-gases into a urea plant
06/2003
06/26/2003US20030120108 Preparation of biuret-containing polyisocyanates
06/26/2003US20030119788 N-cyanomethyl carbonamides and sulfonamides which are cysteine protease, particularly cathepsin K, inhibitors
06/26/2003US20030118494 In situ hydrolysis of urea; injecting into stream of combustion flue gas
06/18/2003EP1318977A1 Substituted phenylcyclohexane carboxylic acid amides and the use thereof
06/18/2003CN1424310A Production of twice substituted urea by amine reacted with carbon dioxide
06/12/2003US20030109716 5-acylamino-2-amino-4-substituted-phenol compounds and method of using them
06/10/2003CA2094542C Method for treating ammonia and urea condensates
06/04/2003EP1316544A1 5-acylamino-2-amino-4-substituted-phenol compounds and method of using them
06/04/2003EP1315688A2 Method of improving the crushing strength and the impact resistance of urea, and urea composition
05/2003
05/29/2003US20030100755 For example (2S, 3S, 5S)-2-(2,6-dimethylphenoxyacetyl)amino-3-hydroxy-5-(2S-(1-tetrahydro-pyrimid-2-onyl)-3-methyl butanoyl)amino-1,6-diphenylhexane; HIV therapy
05/22/2003US20030096796 N-cyanomethyl amides which are cysteine protease inhibitors; use treating diseases associated with activity of cathepsins B, K, L or S such as autoimmune disorders, allergic disorder, allogeneic immune response, cardiovascular disorders
05/15/2003US20030092634 Novel compounds and compositions as protease inhibitors
05/08/2003WO2003037502A1 A micro-engineered chemical reactor
05/08/2003US20030088126 From ammonia and carbon dioxide, characterized in that the installation comprises two reactor sections in a vertically placed combined reactor and a high-pressure condenser section.
05/08/2003US20030088122 Method of preparing amino carboxylic acids
05/08/2003US20030087956 Useful in the treatment of disease mediated by the interaction between VCAM-1 and/or fibronectin and the integrin receptor alpha 4 beta 1.
05/07/2003CN1415601A Method for synthesizing compound of asymmetric substituted carbamide class from carbonyl
05/02/2003EP1305301A1 Alpha-acyl and alpha-heteroatom-substituted benzene acetamide glucokinase activators
04/2003
04/23/2003EP1303503A2 Aniline derivatives
04/22/2003US6552224 Process and plant for the production of urea
04/22/2003CA2141874C Process for the production of urea granules
04/17/2003WO1998003518A3 New bis-platinum complexes with polymethylene derivatives as ligands having antitumor activity
04/15/2003US6548694 N-(4-carbamimidoyl-phenyl)-glycine derivatives
04/10/2003WO2003029197A1 Process for the preparation of urea
04/10/2003WO2003029196A1 Process for the preparation of urea
04/10/2003US20030069307 Oxidation resistance; free radical scavenger; foods, drugs, cosmetics
04/09/2003EP1299354A2 Factor viia inhibitory (thio)urea derivatives, their preparation and their use
04/03/2003WO2003027062A1 Integrated urea manufacturing plants and processes
1 ... 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 ... 38