| Patents for C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192) |
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| 09/01/2004 | CN1164576C Method for synthesizing caprolactam |
| 08/25/2004 | EP1449830A1 Preparation of lactams from aliphatic - dinitriles |
| 08/25/2004 | EP1448518A1 Process for recovering caprolactam |
| 08/25/2004 | CN1163483C Lactam dehydration method |
| 08/25/2004 | CN1163482C Method for evaporating aminonitrile |
| 08/18/2004 | EP1089972B1 Method for evaporating aminonitrile |
| 08/11/2004 | EP1444241A2 Bidendate ligands for the carbonylation of unsaturated compounds |
| 08/11/2004 | EP1444176A2 Bidentate ligand for the telomerization of dienes |
| 08/11/2004 | EP1351931B1 METHOD FOR STORING AND TRANSPORTING N-VINYL-$g(e)-CAPROLACTAM |
| 08/11/2004 | EP1066255B1 Method for producing lactams using oligophosphate catalysts |
| 08/11/2004 | CN1161332C Solid acid catalyst for preparing hexanolactam |
| 08/05/2004 | WO2004065360A2 Piperazine derivatives and their use as synthesis intermediates |
| 08/05/2004 | CA2514145A1 Piperazine derivatives and their use as synthesis intermediates |
| 08/04/2004 | CN1160335C Method for joint production of cyclic lactam and cyclic amine |
| 07/27/2004 | US6768013 Dissolving feed component and air in reaction solvent selected from fluorocarbons, chlorofluorocarbons and related compounds, reacting in presence of solid oxidation catalyst to yield oxidized product preferentially soluble in product solvent |
| 07/14/2004 | EP0901468B1 Preparation of lactams from aliphatic alpha,omega-dinitriles |
| 07/13/2004 | CA2144326C Reclaiming .epsilon.-caprolactam from nylon 6 carpet |
| 07/08/2004 | US20040132999 Hydrolysis and oligomerization of 6-aminocapronitrile by followed by de-oligomerisation/cyclisation using superheated steam |
| 07/07/2004 | CN1511139A Process for preparation of G (E)-caprolactam |
| 07/07/2004 | CN1156443C Preparation method for producing hexanolactan catalyst |
| 06/30/2004 | CN1508128A Method for preparing caprolactam |
| 06/30/2004 | CN1155565C Method for preparing caprolactam to synthesize hydroxylammonium mesophosphate |
| 06/30/2004 | CN1155441C Process for preparing catalyst containing MFI zeolite |
| 06/24/2004 | WO2004052850A2 Methods and compounds producing dipeptidyl peptidase iv inhibitors and intermediates thereof |
| 06/24/2004 | CA2508619A1 Methods and compounds producing dipeptidyl peptidase iv inhibitors and intermediates thereof |
| 06/17/2004 | US20040116691 Process for cyclizing hydrolysis of an aminonitrile compound to a lactam |
| 06/17/2004 | DE10253095A1 Verfahren zur Reinigung von Caprolactam A process for the purification of caprolactam |
| 06/16/2004 | EP1427702A1 Method for the production of 2-pyrrolidone |
| 06/16/2004 | CN1505606A Production of 6-aminocaproic acid |
| 06/15/2004 | US6750336 Using an organic solvent as a substrate solution, which makes it possible to introduce a high-concentration oxime into flowing high-temperature and high- pressure water |
| 06/10/2004 | US20040110943 Process for recovering and purifying caprolactam from an organic solvent |
| 06/09/2004 | CN1503783A Method for the hydrolytic cyclisation of an aminoitrile compound to give a lactam |
| 06/09/2004 | CN1152858C Method for simultaneously producing cyclic lactam and cyclic amine |
| 06/02/2004 | EP1423369A1 Process for distilling alkaline caprolactam product at reduced pressure |
| 06/02/2004 | EP1423361A1 Process for recovering caprolactam from aqueous caprolactam product using in situ prepared alkali amino caproate |
| 06/02/2004 | EP0973736B1 Process for purifying caprolactam |
| 06/02/2004 | CN1151965C Method for distilling ammonia |
| 06/01/2004 | US6743912 Storage and transportation of N-vinyl-epsilon-caprolactam |
| 06/01/2004 | US6743911 Pentenenitrile reacted with carbon monoxide and water or alcohol in the presence of a source of group viii metal and a bidentate phosphine, arsine and/or stibine ligand to form cyanovaleric acid or ester |
| 05/27/2004 | WO2004043915A1 Method for purifying caprolactam |
| 05/27/2004 | WO2004043914A1 Method for purifying caprolactam |
| 05/27/2004 | DE10253094A1 Purification of crude caprolactam comprises a three stage distillation process with feeding of the crude caprolactam and an inorganic acid having a b. pt. above the b. pt. of the caprolactam to a first distillation column |
| 05/27/2004 | CA2505356A1 Method for purifying caprolactam |
| 05/21/2004 | WO2004009541A3 Antisense modulation of endothelial lipase expression |
| 05/20/2004 | US20040097727 Process for producing lactam |
| 05/20/2004 | US20040097726 While suppressing oxime hydrolysis; continuous processing; high temperature/pressure |
| 05/19/2004 | CN1150061C Method for preparing zeolite catalyst |
| 05/12/2004 | EP1242375B1 Method for purifying lactames |
| 05/12/2004 | EP0958278B1 Process to separate epsilon-caprolactam from 6-aminocaproamide and 6-aminocaproamide oligomers |
| 05/11/2004 | US6734323 Mixing suspension resulting from synthesis of zeolite with an oligomeric silica sol obtained from the hydrolysis of a tetra-alkyl ortho silicate in the presence of a tetra-alkylammonium hydroxide, rapid spray drying |
| 05/06/2004 | WO2004037785A1 Method of obtaining dodecalactam using solid catalysts |
| 04/27/2004 | US6727360 Coupling phenylmetaboric acid with 4-iodoisoxazole in presence of (1,1'-bis(diphenylphosphino)ferrocene) palladium (ii) chloride, sodium bicarbonate and solvent |
| 04/21/2004 | CN1490314A Preparation of hexanolactam |
| 04/15/2004 | WO2004031146A1 PROCESS FOR THE PREPARATION OF ϵ-CAPROLACTAM FROM A MIXTURE COMPRISING 6-AMINOCAPROAMIDE AND/OR OLIGOMERS |
| 04/14/2004 | EP1109781B1 Process to continuously prepare an aqueous mixture of epsilon-caprolactam and epsilon-caprolactam precursors |
| 04/13/2004 | CA2282871C Preparation of lauryllactam through cyclododecane photonitrosation and beckmann transposition in the presence of methanesulfonic acid |
| 04/07/2004 | EP1405846A1 Process for the preparation of epsilon-caprolactam from a mixture comprising 6-aminocaproamide and/or oligomers |
| 04/01/2004 | WO2004026820A2 Method for assaying compounds that decrease the activity of poly(adp-ribose)-polymerase (parp) |
| 04/01/2004 | CA2499383A1 Method for assaying compounds that decrease the activity of poly(adp-ribose)-polymerase (parp) |
| 03/25/2004 | US20040059108 Amide-based compounds, production, recovery, purification and uses thereof |
| 03/24/2004 | CN1484636A Method for storing and transporting N-vinyl caprolactam |
| 03/24/2004 | CN1142915C Process for prodn. of hexanolactam |
| 03/24/2004 | CN1142907C Process to continuously prepare aqueous mixture of epsi-caprolacta and epsi caprolactam precursors |
| 03/18/2004 | US20040054169 In vapor phase; from cyclohexanone oxime in presence of solid acid catalysts |
| 03/17/2004 | CN1142139C Hydrofinishing method of caprolactam |
| 03/16/2004 | US6706153 Distillation |
| 03/10/2004 | CN2606105Y Electric foreign ions remover with caprolactam |
| 03/09/2004 | US6703511 Method for obtaining pure n-vinyl pyrrolidone |
| 03/09/2004 | US6703501 Porous catalyst for preparing epsilon-caprolactam from cyclohexanone oxime in vapor phase, comprising layered silicate and metal oxides pillared between silicate layers, having specified interlayer distance and surface area |
| 02/24/2004 | CA2282877C Lactam preparation method using corresponding cycloalcanon oximes |
| 02/24/2004 | CA2237727C Simultaneously preparing caprolactam and hexamethylenediamine |
| 02/24/2004 | CA2209336C Process for continuous purification of crude caprolactam prepared from 6-aminocapronitrile |
| 02/12/2004 | US20040030128 Catalytic reductive amination of 5-formylvaleric acid or ester |
| 02/12/2004 | US20040030126 Process for synthesizing beta-lactam |
| 02/10/2004 | CA2176836C The preparation of caprolactam |
| 02/05/2004 | WO2004011428A1 Process for production of amides |
| 02/05/2004 | US20040024204 Method for the manufacture of caprolactam from waste containing polyamides |
| 02/04/2004 | EP1098875B1 Method for cyclizing hydrolysis of an aminonitrile compound into lactam |
| 02/03/2004 | US6686465 Preparation of cyclic lactams |
| 02/03/2004 | CA2176741C The preparation of caprolactam |
| 01/29/2004 | WO2004009541A2 Antisense modulation of endothelial lipase expression |
| 01/27/2004 | US6683180 Method for the production of caprolactam |
| 01/27/2004 | US6683179 Catalytically reacting 6-aminocapronitrile and water in the gas phase, removing ammonia from the resulting mixture of caprolactam, water, high-and low-boiling components, then removing water, then crystallization |
| 01/27/2004 | US6683178 Preparation of cyclic lactams |
| 01/27/2004 | US6683177 Catalytic reaction of 6- aminocapronitrile with water and a tetrahydroazepine |
| 01/22/2004 | WO2003040065A3 Bidentate ligand for the telomerization of dienes |
| 01/22/2004 | US20040014965 Obtained by cyclizing hydrolysis of aminonitrile and removal of ammonia by distillation, then crystallization |
| 01/14/2004 | CN1468146A Process for the preparation of a mixture of epsilon-caprolactam and/or epsilon-caprolactam precursors |
| 01/13/2004 | US6677449 Preparation of caprolactam |
| 01/13/2004 | US6677448 Treating catalyst, which comprises solid oxide, at temperature of between 300 degrees c. and 600 degrees c. in oxidizing atmosphere |
| 01/08/2004 | WO2003040159A3 Bidentate ligands for the carbonylation of unsaturated compounds |
| 01/07/2004 | CN1133749C Process for preparing enantiomericaly enriched N-derivatised lactams |
| 01/02/2004 | EP1373201A1 Process for recovering and purifying caprolactam from an organic solvent |
| 01/02/2004 | EP1373200A1 Process for the preparation of $g(e)-caprolactam |
| 12/24/2003 | CN1131853C 粗ε－己内酰胺的连续纯化方法 Continuous purification of crude caprolactam ε- |
| 12/17/2003 | EP1371644A1 Process for the preparation of caprolactam from polyamide containing waste |
| 12/17/2003 | EP1370524A1 Method for the hydrolytic cyclisation of an aminonitrile compound to give a lactam |
| 12/16/2003 | US6663844 Pyrogenic titanium dioxide |
| 12/16/2003 | CA2268165C Preparation of caprolactam |
| 12/10/2003 | EP1369413A1 Process for producing lactam |