| Patents for C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192) |
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| 06/08/2005 | EP1175396B1 Process for the preparation of epsilon-caprolactam |
| 06/02/2005 | WO2004074247A3 A1 adenosine receptor antagonists |
| 06/02/2005 | US20050119258 Xanthines 3-and 8-substituted with an arylalkylene or heteroarylalkylene, e.g. 3-[2-(4-Aminophenyl)ethyl]-8-benzyl-1-propylxanthine and 3-[2-(4-Aminophenyl)ethyl]-1-propyl-8-[(3-pyridyl)methyl]xanthine |
| 06/01/2005 | CN1621405A Process for preparing caprolactam by cyclohexanone-oxime gas phase rearrangement |
| 06/01/2005 | CN1204119C Method for separating ammonia from solutions contg. caprolactam and ammonia |
| 05/26/2005 | WO2005047182A1 High silica cds-1 zeolite |
| 05/24/2005 | US6896772 Method for separating ammonia from solutions containing caprolactam and ammonia |
| 05/18/2005 | CN1616423A E-alpha-chloro alkyllene-beta-lactan compound synthetic method and its use |
| 05/17/2005 | US6894163 Process for preparation of epsilon-caprolactam |
| 05/11/2005 | CN1615298A Method for preparing lactam |
| 05/11/2005 | CN1613860A Cephaene onium salt compound and its preparation, and synthesis of cephapyrazde sulfate therefrom |
| 05/05/2005 | US20050096466 Process for the preparation of tetrazol-derived compounds as growth hormone secretagogues |
| 05/04/2005 | CN1199945C Method for producing cyclic lactams |
| 05/03/2005 | US6888006 Method for processing pyrollidone and n-vinyl pyrollidone residues |
| 04/28/2005 | WO2004083170A3 Compounds, a process for their preparation and their use as dyes and pigments |
| 04/28/2005 | US20050090539 Intermediates for making 1(alpha-amino-1-(cyclopropyl-fused pyrrolidinylcarbonyl)methyl)-3-hydroxyadamantanes, e.g., methyl 3-hydroxy-<a-oxotricyclo[3.3.1.13,7]decane-1-acetate |
| 04/27/2005 | EP1299347B1 Method for separating ammoniac |
| 04/27/2005 | CN1609103A Method for producing epsilon-caprolactam |
| 04/21/2005 | US20050085652 Trans configuration; reacting 3-methyl butyric acid with halvaleric acid; forming 8-methyl-6-nonynoic acid; reduction; activation; acylation |
| 04/19/2005 | CA2247459C Process for the preparation of a mixture of .epsilon.-caprolactam, 6-aminocaproic acid and 6-aminocaproic amide |
| 03/30/2005 | CN1600428A Method for preparing catalyst of containing MFI structured molecular sieve |
| 03/30/2005 | CN1194965C Method for producing cyclic lactams |
| 03/17/2005 | US20050056532 Method for purifying caprolactam from waste containing polyamide using UV radiation |
| 03/16/2005 | EP0874625B1 Indane derivatives for antipsychotic compositions |
| 03/16/2005 | CN1596261A Bidentate ligands for the carbonylation of unsaturated compounds |
| 03/16/2005 | CN1596245A Process for recovering caprolactam |
| 03/10/2005 | US20050054739 Depolymerisation of the waste containing polyamide, whereby a caprolactam raw material and a flow comprising secondary constituents and additives from the depolymerisation are obtained, and leaching of the flow using an extracting agent; improved economic efficiency |
| 03/09/2005 | EP1142858B1 Process for producing aliphatic aldehydic acid and/or aliphatic dicarboxylic acid |
| 03/09/2005 | CN1592725A Bidentate ligands of diolefin telomerization |
| 03/02/2005 | EP1066250B1 A convergent synthesis of alpha-aryl-beta ketonitriles |
| 03/02/2005 | CN1191238C Method for preparig omega-lauryl lactan |
| 02/24/2005 | DE10333539A1 Verfahren zur Reinigung von Caprolactam aus Polyamidhaltigen Abfällen mittels UV-Bestrahlung A process for the purification of caprolactam from polyamide-containing waste by means of UV irradiation |
| 02/24/2005 | DE10333538A1 Verfahren zur Behandlung Polyamid-haltiger Abfälle mit der Wiederaufbereitung des Depolymerisationsrückstandes A method for treating polyamide-containing waste to the recycling of Depolymerisationsrückstandes |
| 02/22/2005 | US6858728 Contacting impure 6-aminocapronitrile (ACN) containing tetrahydroazepine (THA) with water, heating in presence of dehydration catalyst to produce caprolactam, ammonia, water, ACN, and THA; separating; introducing melt into a low boiler |
| 02/17/2005 | WO2005014538A1 Process for purifying caprolactam |
| 02/16/2005 | CN1189456C Process for producing high purity caprolactam |
| 02/16/2005 | CN1189247C Method for regenerating catalyst for cyclizing hydrolysis amionotrile into lactam |
| 02/15/2005 | CA2208226C Obtaining caprolactam by hydrolytic cleavage of molten polycaprolactam |
| 02/10/2005 | US20050032630 Process for the preparation of MFI-type zeolitic catalysts |
| 02/10/2005 | US20050029086 Mixture containing impurities, base; controlling alkalinity; purification |
| 02/09/2005 | CN1188398C Processf or preparing lactan from correlated cyclo aliphatic ketoxime |
| 02/09/2005 | CN1188395C Process for producing amide compound |
| 02/02/2005 | CN1187334C Preparation of hexanolactam |
| 02/02/2005 | CN1187324C Process for the preparation of epsilon-caprolactam |
| 02/01/2005 | US6849731 Loss of caprolactam is reduced; caprolactam from Beckmann Rearrangement of cyclohexanone oxime; involves solvent extraction and distillation |
| 01/26/2005 | EP1500647A1 Process for the treatment of polyamide containing waste by recycling of the depolymerization residue |
| 01/26/2005 | EP1500646A1 Process for the purification of caprolactam from polyamid containing wastes by UV irradiation |
| 01/26/2005 | CN1571772A Process for distilling alkaline caprolactam product at reduced pressure |
| 01/26/2005 | CN1186321C Method for storing and transporting N-vinyl-epsilon- caprolactam |
| 01/20/2005 | US20050011744 Process for recovering caprolactam from aqueous caprolactam product using situ prepared alkali amino caproate |
| 01/19/2005 | CN1566089A Process for preparation of caprolactam |
| 01/19/2005 | CN1565720A Solid acid catalyzer for synthesizing caprolactam |
| 01/13/2005 | US20050010020 Method for producing epsilon-caprolactam |
| 01/12/2005 | EP1496049A1 Method for productin epsilon-caprolactam by introducing cyclohexanone oxime gas into a fluidized catalyst layer through holes of 3mm diameter or smaller of a gas diffusion plate |
| 01/11/2005 | US6841666 Hydrolysis and oligomerization of 6-aminocapronitrile by followed by de-oligomerisation/cyclisation using superheated steam |
| 01/06/2005 | WO2005000808A1 Method for making caprolactam from impure 6-amino-capronitrile containing tetrahydroazepine |
| 01/05/2005 | CN1183109C Process for prepn. of epsilon-caprolactam |
| 01/04/2005 | US6838406 Process for the preparation of MFI-type zeolitic catalysts |
| 12/29/2004 | WO2004113287A1 Process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture under turbulent flow conditions |
| 12/29/2004 | CN1557945A Preparation of lactams from aliphatic alpha , omega -dinitiles |
| 12/28/2004 | US6835830 Method for evaporating aminonitrile |
| 12/23/2004 | US20040260087 Contacting impure 6-aminocapronitrile (ACN) containing tetrahydroazepine (THA) with water, heating in presence of dehydration catalyst to produce caprolactam, ammonia, water, ACN, and THA; separating; introducing melt into a low boiler |
| 12/23/2004 | US20040259724 Carbonylation of pentenenitrile to 5-cyanovaleric acid; reduction to 6-aminocaporic acid; cyclization to caprolactam |
| 12/15/2004 | CN1554768A Preparation of lactams from aliphatic alpha,omega dinitriles |
| 12/15/2004 | CN1554746A Preparation of lactams from aliphatic alpha,omega dinitriles |
| 12/15/2004 | CN1554646A Preparation of lactams from aliphatic alpha,omega dinitriles |
| 12/08/2004 | CN1553896A Process for producing lactam |
| 12/08/2004 | CN1552698A Process for refining aqueous hexanolactam solution by hydrogenation |
| 12/08/2004 | CN1178910C Process for purifying caprolactam |
| 12/02/2004 | WO2004103965A1 Process for rectifying n-vinyl-2-pyrrolidone |
| 12/02/2004 | WO2004103964A1 Continuous process for preparing caprolactam |
| 12/02/2004 | WO2004103963A1 Process for preparing caprolactam by beckmann rearrangement |
| 12/02/2004 | US20040242949 Process for the telomerization of a conjugated diene, catalyst and bidentate ligand useful therein |
| 12/02/2004 | US20040242900 Liquid phase reacting of gamma-butyrolactone with ammonia and water; heating, pressurization |
| 12/01/2004 | CN1551868A Method for the production of 2-pyrrolidone |
| 12/01/2004 | CN1177820C Process for preparing caprolactan |
| 11/23/2004 | US6821339 Process for the crystallization of non-sucrose substances |
| 11/18/2004 | US20040230071 Process for the carbonylation of pentenenitrile |
| 11/17/2004 | CN1547572A Process for recovering caprolactam from aqueous caprolactam product using in situ prepared alkali amino caproate |
| 11/17/2004 | CN1176073C Method for cyclizing hydrolysis of an aminonitrile compound into lactam |
| 11/11/2004 | WO2004065360A3 Piperazine derivatives and their use as synthesis intermediates |
| 11/10/2004 | CN1174967C Method for production of caprolactam |
| 11/10/2004 | CN1174966C Method for producing caprolactam by 6-aminocapronitrile |
| 11/10/2004 | CN1174965C Method for producing caprolactam by 6-aminocapronitrile and subsequent crystalline purifying |
| 11/02/2004 | CA2110382C Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products |
| 10/28/2004 | WO2004092122A2 Preparation and purification of synthetic capsaicin |
| 10/28/2004 | US20040215013 Process for producing lactam |
| 10/28/2004 | CA2521925A1 Preparation and purification of synthetic capsaicin |
| 10/26/2004 | CA2181238C Lewis acid catalyzed ammonolysis of nylon |
| 10/19/2004 | CA2239283C Process for depolymerizing nylon-containing waste to form caprolactam by superheated steam in the absence of catalysts |
| 10/13/2004 | EP1466971A1 Preparation of lactams from aliphatic alpha,omega dinitriles |
| 10/06/2004 | CN1535263A Process for recovering and purifying caprolactam from organic solvent |
| 09/30/2004 | WO2004083170A2 Compounds, a process for their preparation and their use as dyes and pigments |
| 09/30/2004 | CA2518707A1 Compounds, a process for their preparation and their use as dyes and pigments |
| 09/29/2004 | EP1268402B1 Process for preparing 6-aminocaproamide |
| 09/21/2004 | US6794553 Process for the telomerization of a conjugated diene, catalyst and bidentate ligand useful therein |
| 09/15/2004 | EP1456177A1 Method for preparing lactam |
| 09/02/2004 | WO2004074247A2 A1 adenosine receptor antagonists |
| 09/02/2004 | US20040171829 Convergent synthesis of alpha-aryl-beta-ketonitriles |
| 09/02/2004 | CA2516250A1 A1 adenosine receptor antagonists |