| Patents for C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192) |
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| 12/04/2008 | WO2008145312A1 Method of making a lactam in an ionic liquid |
| 12/02/2008 | CA2407812C Method for producing cyclic lactams |
| 11/27/2008 | US20080293705 A1 adenosine receptor antagonists |
| 11/26/2008 | CN101312947A Polyamide depolymerization method and polyamide monomer preparation method |
| 11/05/2008 | CN100430344C Bidentate ligands of diolefin telomerization |
| 10/14/2008 | CA2302787C A process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet |
| 10/08/2008 | CN100424075C Method for separating cis-3,5-dimethylpiperidine from a mixture of its geometrical isomers |
| 10/08/2008 | CN100424072C Process for purifying caprolactam |
| 10/01/2008 | EP1975156A1 Method for depolymerizing polyamide and method for producing monomer of polyamide |
| 10/01/2008 | EP1975155A1 Process for production of lactam |
| 10/01/2008 | CN101274902A Method for recovering cyclohexanone oxime |
| 09/25/2008 | US20080230368 Process for the purification of lactams |
| 09/09/2008 | US7423041 e.g. 3-[2-(4-Aminophenyl)ethyl]-8-benzyl-1-propylxanthine; A1-adenosine receptor antagonist; antiallergen, antiinflammatory agent; AIDS and immune deficiency disorders, asthma; good water solubility |
| 09/04/2008 | WO2008064887A8 A bislactamamide derivative as intermediate in the production of di i socyanate |
| 09/02/2008 | US7420079 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 |
| 08/27/2008 | CN101250148A Method for preparing caprolactam by phase rearrangement of cyclohexanone oxime liquid |
| 08/20/2008 | EP1678130B1 Amidomethyl-substituted 2-(4-sulfonilamino)-3-hidroxy-3,4-dihydro-2h-chromium-6-yl-derivatives and drugs containing said compounds |
| 08/20/2008 | CN101248042A Sulfonamide compounds and uses thereof |
| 08/14/2008 | WO2008096873A1 Method for production of laurolactam |
| 08/13/2008 | CN100410240C Continuous process for preparing caprolactam |
| 08/06/2008 | CN100408563C Method for producing epsilon-caprolactam |
| 07/23/2008 | CN101228122A Method for synthesising lauryl lactam (l12) by catalytically rearranging cyclododecanone oxime in a gaseous phase |
| 07/23/2008 | CN100404504C Preparation process of 3,3-imyl butyrolactam |
| 07/15/2008 | US7399855 Reflulxing salt of L-lysine in alcohol solvent to form alpha -amino- epsilon -caprolactam |
| 07/10/2008 | WO2008081726A1 Process for production of amide or lactam |
| 07/10/2008 | DE19753377B4 Verfahren zur Herstellung von ε-Caprolactam aus Extraktwasser der PA-6-Synthese A process for producing ε-caprolactam from the water extract of the PA-6 synthesis |
| 07/08/2008 | CA2092868C Process for producing 4-substituted azetidinone derivatives |
| 07/03/2008 | WO2008078642A1 Method for producing lactam compound |
| 06/26/2008 | DE102007060672A1 Preparing lactam, useful as e.g. pharmaceutical preparations, agrochemicals, comprises, converting cycloalkane with nitrous acid ester in presence of nitrogenous cyclic compound to cycloalkanonoxime and subjecting to Beckmann-rearrangement |
| 06/24/2008 | US7390897 Production of epsilon -caprolactam by the vapor phase hydrolytic cyclization of 6-aminocapronitrile with hydrogen in the presence of a hydrogenation catalyst |
| 06/18/2008 | CN100395232C Method for making caprolactam from impure 6-amino-capronitrile containing tetrahydroazepine |
| 06/11/2008 | EP0892782B2 Process for depolymerizing polycaprolactam processing waste to form caprolactam |
| 06/10/2008 | US7385053 Functionalized compositions for improved immobilization |
| 06/10/2008 | US7384518 Method for purifying lactams |
| 06/05/2008 | WO2008064887A1 A bislactamamide derivative as intermediate in the production of di i socyanate |
| 06/04/2008 | CN101190893A System and method for purifying crude caprolactam water solution |
| 06/04/2008 | CN101190892A Method for preparing monamide |
| 06/03/2008 | US7381821 Reacting 4-(alpha-(p-chlorophenyl)benzyl)-1-leaving group-alkylpiperazine with protected 1-hydroxy-1-(4-(p-hydroxyphenyl)-3-butynyl)urea to form 1-(4-(p-(4-(alpha-(p-chlorophenyl)benzyl)-1-piperazin-1-ylalkyl)phenyl)-3-butynyl)-1-hydroxyurea; preparation of intermediates |
| 05/21/2008 | CN100389108C Production method of hexyl lactam in ion liquid |
| 05/21/2008 | CN100389107C Process for preparation of caprolactam |
| 05/15/2008 | DE102006051626A1 Purifying aqueous lactam solutions useful for producing polyamide packaging materials comprises using monodisperse ion exchangers |
| 04/30/2008 | CN101168525A Method for preparing caprolactam |
| 04/30/2008 | CN101168524A Method for preparing low sulfonated caprolactam |
| 04/30/2008 | CN101168523A Method for overturning syn-form 4-alkyl-N-tert-butoxycarbonyl pyroglutamic acid ester to anti-form product |
| 04/30/2008 | CN100384818C Process for refining high purifity hexanpropylamide |
| 04/29/2008 | US7365195 Hydrogenating caprolactam in presence of a heterogeneous nickel containing hydrogenation catalyst, continuously distilling at least a portion of the hydrogenated caprolactam in a distillation column |
| 04/23/2008 | EP1773765B1 Method for catalytic hydrogenation purification of lactam containing chorolactam impurities |
| 04/15/2008 | US7358357 Feeding oleum and cyclohexanone oxime into a first reaction mixture comprising caprolactam, sulfuric acid and SO3,feeding a portion of the first reaction mixture and cyclohexanone oxime into a second reaction mixture comprising caprolactam, sulfuric acid and SO3, withdrawing |
| 04/10/2008 | DE10333538B4 Verfahren zur Behandlung Polyamid-haltiger Abfälle mit der Wiederaufbereitung des Depolymerisationsrückstandes A method for treating polyamide-containing waste to the recycling of Depolymerisationsrückstandes |
| 04/09/2008 | CN101157646A Method for producing monomer aminocaprolactam by using nylon 6 waste and old material |
| 04/09/2008 | CN100379726C Process for producing epsilon-hexanolactam |
| 04/02/2008 | CN100378086C Novel piperazine derivatives and their use as synthesis intermediates |
| 04/01/2008 | US7351820 Feeding oleum and cyclohexanone oxime into a first reaction mixture comprising caprolactam, sulfuric acid and SO3,feeding a portion of the first reaction mixture and cyclohexanone oxime into a second reaction mixture comprising caprolactam, sulfuric acid and SO3, withdrawing |
| 03/27/2008 | WO2007115943A3 Process for the preparation of an n-alkyl lactam with improved colour quality |
| 03/26/2008 | EP1903032A1 Method for purifying lactams |
| 03/26/2008 | EP1902021A2 Method for synthesising lauryl lactam (l12) by catalytically rearranging cyclododecanone oxime in a gaseous phase |
| 03/20/2008 | US20080071081 Using metal catalyst in presence of solvent and amine; salt formation of amine with released hydrogen chloride |
| 03/19/2008 | CN101143843A Method for preparing epsilon-caprolactam |
| 03/19/2008 | CN100375741C Process for producing lactam |
| 03/18/2008 | CA2256379C Substance mixtures comprising vinyl-containing compounds and stabilizers |
| 03/12/2008 | CN101142179A Process for making caprolactam |
| 03/12/2008 | CN101142178A Improved method for making caprolactam from impure 6-aminocapronitrile |
| 03/12/2008 | CN100374418C Synthesis of caprolactam and its oligomer |
| 03/06/2008 | US20080058513 System and process for purifying an aqueous solution of crude caprolactam |
| 03/05/2008 | EP1893569A1 Sulfonamide compounds and uses thereof |
| 03/05/2008 | CN101137608A Method for the production of cyclohexanone |
| 03/05/2008 | CN100372835C Method for purifying lactams |
| 03/04/2008 | US7339056 Continuous process for preparing caprolactam |
| 02/27/2008 | CN101130167A Catalyzer for one-step synthesis of caprolactam |
| 02/20/2008 | CN101128422A Lactam production method |
| 02/20/2008 | CN100369895C Process for producing epsilon-caprolactam |
| 02/13/2008 | CN101121141A Method for preparing solid acid catalyst for preparing caprolactam |
| 02/13/2008 | CN100368396C Method for making caprolactam |
| 02/07/2008 | US20080033168 adsorbing a silicon compound on a zeolite catalyst that had been used for a Beckmann rearrangement reaction of cyclohexanone oxime (to produce e-caprolactam) and contacting the catalyst with an aqueous solution containing ammonia; allows e-caprolactam to be produced with a favorable yield for a long time |
| 02/06/2008 | CN101117327A Preparation method of aminocaprolactam |
| 02/06/2008 | CN101117326A Method for preparing aminocaprolactam by catalysis of nicotinic acid in ionic liquid |
| 01/23/2008 | CN100363351C Production of hexyl lactam |
| 01/10/2008 | US20080009618 Method for making caprolactam from impure 6-aminocapronitrile |
| 01/09/2008 | EP1875964A1 Process for regenerating catalyst for producing a-caprolactam and process for producing e-caprolactam |
| 01/09/2008 | CN101102998A Preparation of lactams |
| 01/09/2008 | CN101099935A Process for regenerating catalyst for producing epsilon-caprolactam and process for producing epsilon-caprolactam |
| 01/09/2008 | CN100360503C Process for rectifying N-vinyl-2-pyrrolidone |
| 12/20/2007 | US20070293703 Preparation and purification of synthetic capsaicin |
| 12/19/2007 | EP1339665B1 Nitroderivatives as drugs for diseases having an inflammatory basis |
| 12/12/2007 | CN100354266C Prep. of epsilon-hexanolactam |
| 12/12/2007 | CN100354255C Process for the carbonylation of pentenenitrile |
| 12/05/2007 | EP1289489B1 Topical agent for dermatological use containing 4-hydroxyphenyl-alpha-d-glucopyranoside |
| 11/28/2007 | EP1859835A2 Topical agent for dermatological use containing 4-hydroxyphenyl-alpha-D-glucopyranoside |
| 11/28/2007 | EP1858843A1 Process for making caprolactam |
| 11/28/2007 | EP1858842A1 Improved method for making caprolactam from impure 6-aminocapronitrile |
| 11/27/2007 | CA2409344C Method for separating ammonia from solutions containing caprolactam and ammonia |
| 11/21/2007 | CN100349866C Method for purifying caprolactam |
| 11/14/2007 | CN101070299A Method for purifying and refining epsi caprolactam |
| 11/14/2007 | CN101070298A Method for purifying and refining epsi-caprolactam |
| 11/14/2007 | CN101070263A Method for manufacturing cyclododecatries |
| 11/08/2007 | WO2007125002A1 Process for preparing amides from ketoximes |
| 11/08/2007 | CA2650435A1 Process for preparing amides from ketoximes |
| 11/07/2007 | EP1851196A1 Lactam production method |
| 11/07/2007 | CN100347157C Method for carrying out high efficiency premixing reaction |
| 10/25/2007 | WO2007099029A3 Method for the purification of caprolactam made from lysin |