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WO/2006/078403A1 |
A process for the manufacture of a lactam from an amino alkane nitrile and/or its hydrolysis derivatives, comprising reacting a solution comprising at least about 5% by weight amino alkane nitrile in water at a temperature of greater tha...
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WO/2006/061487A1 |
The invention relates to a method for the preparation of cyclohexanone from cyclohexane. The invention relates more particularly to a method for the production of cyclohexane whose impurity content enables cyclohexanone to be used as a r...
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WO/2006/016060A2 |
The invention concerns a method for purifying cyclic lactams containing 6 to 12 carbon atoms and containing chlorolactams as impurities, by hydrogenation reaction in the presence of a metal catalyst, a solvent and a compound having a rad...
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WO/2005/123669A1 |
In various embodiments, the present invention can involve a method of synthesizing &agr -amino-&epsiv -caprolactam. The method can comprise heating a salt of L-lysine in a solvent comprising an alcohol. In other embodiments, the present ...
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WO/2005/047182A1 |
Disclosed are a high silica zeolite having a novel crystal structure, a zeolite membrane and methods for producing them. The zeolite is represented by the chemical composition:[(Si36-xTy·O72)·Mz] (wherein M represents a cation of an al...
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WO/2005/014538A1 |
The invention relates to a process for purifying caprolactam, said process comprising (a) subjecting the caprolactam to a hydrogenation by treating the caprolactam with hydrogen in the presence of a heterogeneous nickel containing hydrog...
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WO/2005/000808A1 |
Method for making caprolactam from 6-aminocapronitrile that contains greater than 500 ppm tetrahydroazepine and its derivatives (THA) in which the THA is not removed from the method until after the caprolactam is produced.
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WO/2004/113287A1 |
The invention relates to a process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture comprising caprolactam and sulfuric acid using a mixing device, said mixing device comprising (i) a tube through which...
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WO/2004/103963A1 |
The invention relates to a process for preparing caprolactam by Beckmann rearrangement of cyclohexanone oxime by feeding cyclohexanone oxime to a reaction mixture comprising (i) sulfuric acid (ii) SO3 and (iii) caprolactam, wherein the S...
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WO/2004/103964A1 |
The invention relates to a continuous process for preparing caprolactam by Beckmann rearrangement of cyclohexanone oxime, said process comprising a) feeding (i) oleum and (ii) cyclohexanone oxime into a first reaction mixture comprising ...
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WO/2004/103965A1 |
A process for rectifying N-vinyl-2-pyrrolidone by crystallization is described. The process is characterized in that the crystallization is performed for a mother liquid having crude N-vinyl-2-pyrrolidone in the presence of a stabilizer....
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WO/2004/092122A2 |
The present invention provides methods for synthesizing the trans isomer of capsaicin and/or capsaicin-like compounds by utilizing a process wherein the trans geometry is set from the beginning of the synthesis reaction and carried throu...
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WO/2004/083170A2 |
Compounds of formula (1) wherein R1 is hydrogen, hydroxy, halogen, nitro, cyano, amino, carboxy, carboxylic ester, sulfo, sulfonic ester, carboxylic amide, sulfonic amide, alkoxy, aryloxy, alkylthio or arylthio, X is -0-, -S-, -NH- or -N...
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WO/2004/074247A2 |
Compounds of the general formula (I) are described wherein A is a 5- or 6-membered aromatic or heteroaromatic ring. Compositions comprising such compounds and methods of use thereof are also described.
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WO/2004/065360A2 |
The present invention relates to new enantiomerically pure piperazine derivatives of formula (I) wherein Y represents hydroxy or a leaving group and n is 1, 2, 3, 4 or 5, and to their use as synthesis intermediates, especially for the pr...
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WO/2004/052850A2 |
Methods and compounds for production of cyclopropyl-fused pyrrolidine-based inhibitors of dipeptidyl peptidase IV are provided.
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WO/2004/043914A1 |
The invention relates to a method for separating high boilers out from a crude caprolactam, which contains high boilers, caprolactam and, optionally, light boilers, and which has been obtained by: a) reacting 6-aminocapronitrile with wat...
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WO/2004/043915A1 |
The invention relates to a method for purifying crude caprolactam that has been obtained by: 1) reacting a mixture (I) containing 6-aminocapronitrile and water to form a mixture (II) containing caprolactam, ammonia, water, high boilers a...
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WO/2004/037785A1 |
The invention relates to a method of preparing dodecalactam, the precursor of the monomer for Nylon-12, and, in particular, to a method involving the use of laminar materials as heterogeneous acid catalysts for the production of dodecala...
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WO/2004/031146A1 |
The invention relates to a process for the preparation of &epsiv -caprolactam from a mixture comprising 6-aminocaproamide and/or oligomers thereof, wherein in a first step 6-aminocaproamide and/or oligomers thereof is converted at a temp...
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WO/2004/026820A2 |
Provided herein is a novel and useful method for determining whether a compound or agent decreases or inhibits the activity of a poly(ADP-ribose)-polymerase (PARP).
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WO/2004/011428A1 |
A process for producing an amide in a high yield by subjecting an oxime to Beckmann rearrangement in a liquid phase under mild reaction conditions, namely, a process for the production of amides by subjecting an oxime having eight or mor...
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WO/2004/009541A2 |
Antisense compounds, compositions and methods are provided for modulating the expression of Endothelial Lipase (EL). The compositions comprise antisense compounds, particularly antisense oligonucleotides, targeted to nucleic acids encodi...
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WO2002055493A9 |
The invention relates to a method for storing and transporting N-vinyl- epsilon -caprolactam, which is characterized by maintaining the N-vinyl- epsilon -caprolactam in the liquid phase.
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WO/2003/053935A1 |
The invention concerns a method for preparing lactam by cyclizing 6-aminocaproic acid esters and amides. Said reaction is carried out in vapour phase and in the presence of a catalyst such as alumina.
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WO/2003/045911A1 |
The invention relates to a process for recovering caprolactam from a mixture comprising caprolactam, water, light and heavy components, by subjecting the mixture to a first vacuum distillation resulting in a first bottom product comprisi...
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WO/2003/040159A2 |
Bidentate ligand of formula (I), R1R2M1-R-M2R3R4 wherein M1 and M2 each indenpendently represent P, As or Sb; R1, R2, R3 and R4 each independently represent the same or a different optionally substituted organic group and at least one of...
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WO/2003/040065A2 |
Process for the telomerization of a conjugated diene, wherein the conjugated diene is reacted with a compound containing an active hydrogen atom and having a formula R-H in the presence of a telomerization catalyst based on: (a) a source...
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WO/2003/024927A1 |
A process for producing a lactam, characterized by subjecting an alicyclic primary amine to an oxidation reaction in the presence of a catalyst comprising silicon oxide&semi and the catalyst comprising silicon oxide which is for use in t...
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WO/2003/022811A1 |
A method for the continuous production of 2-pyrrolidone by reacting gamma-butyrolactone with ammonia in the liquid phase in the presence of water, wherein the reaction is carried out at a temperature of 275 -300 °C and at an absolute pr...
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WO/2003/018550A1 |
The invention relates to a continuous process for recovering caprolactam from aqueous caprolactam product, said aqueous caprolactam product comprising (i) caprolactam, (ii) impurities, and (iii) water, said process comprising: adding alk...
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WO/2003/018562A1 |
The invention relates to a process for distilling alkaline caprolactam product at reduced pressure, said alkaline caprolactam product comprising (i) caprolactam, (ii) organic impurities, and (iii) one or more bases selected from the grou...
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WO/2002/102773A1 |
The invention relates to a method for producing pyrrolidones which are optionally N-substituted by hydrogenation in the gas phase in moisture free conditions of substrates selected from C¿4?-dicarboxylic acids and derivatives thereof, o...
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WO2002028525A9 |
Process for the preparation of a mixture of epsilon -caprolactam and epsilon -caprolactam precursors by reductively aminating 5-formylvaleric acid and/or 5-formylvalerate ester(s) in water with hydrogen and an excess of ammonia in the pr...
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WO/2002/083635A1 |
The invention relates to a process for the preparation of $g(e)-caprolactam starting from butadiene, carbon monoxide, alkanol, hydrogen and ammonia, wherein the process comprises: 1. carbonylating butadiene in the presence of an alkanol ...
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WO/2002/076943A1 |
The invention relates to a process for the preparation of $g(e)-caprolactam starting from 6-aminocapronitrile by hydrolysis/oligomerisation followed by de-oligomerisation/cyclisation using superheated steam characterized in that the hydr...
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WO/2002/076942A1 |
A process for efficiently and continuously producing a lactam in high-temperature high-pressure water, characterized by comprising: introducing an oxime as a substrate and an acid into a reaction zone through which high-temperature high-...
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WO/2002/074739A1 |
The invention relates to a method for the hydrolytic cyclisation of an aminonitrile compound to give a lactam in the presence of a catalyst, in particular a method for the hydrolytic cyclisation of an aminonitrile compound in the presenc...
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WO/2002/070474A1 |
A process for continuously producing a lactam in water at a high temperature under a high pressure. Namely, a process for producing a lactam characterized by selectively synthesizing the lactam without causing hydrolysis by introducing a...
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WO/2002/070475A1 |
Process for recovering caprolactam from a solution comprising caprolactam dissolved in an organic solvent, said process comprising: a) washing the solution with water or an aqueous alkaline solution, resulting in a washed solution compri...
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WO/2002/064560A1 |
A process for preparing $g(e)-caprolactam by bringing cyclohexanone oxime into contact with a solid acid catalyst under gas-phase reaction conditions to conduct the rearrangement of cyclohexanone oxime, characterized in that the solid ac...
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WO/2002/062295A2 |
The present invention provides a genus of pyridine-substituted benzanilides that are useful as openers of potassium ion channels. The compounds of the invention are of use in both therapeutic and diagnostic methods.
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WO/2002/062754A1 |
The invention relates to a method for producing N,N'carbonylbis-$g(e)-caprolactam by reacting $g(e)-caprolactam with phosgene in the presence of a hydrogen chloride-binding agent in an inert organic solvent and isolating the reaction pro...
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WO/2002/057372A2 |
This invention relates to a composition containing (a) a component selected from the group of a mono-or poly- vinyl substituted mono- or polyether, a mono- or poly- vinyl substituted lactam, or a mixture thereof contained in a acidic med...
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WO/2002/050025A1 |
A process for synthesizing a $g(b)-lactam in water at a high temperature under a high pressure; and a process for producing a $g(b)-lactam. Namely, a process for synthesizing a ß-lactam characterized by reacting a$g(b)-amino acid in wat...
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WO/2002/050026A1 |
A process for synthesizing a lactam in water at a high temperature under a high pressure; and a process for producing a lactam. Namely, a process for synthesizing a lactam characterized by reacting an amino acid in water at a high temper...
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WO/2002/044246A1 |
The invention related to a modified polylactam containing recurring units of lactam and minor amounts of a lactam derivative having one or more non-polymerisable functional groups directly or indirectly attached to the carbon atoms of th...
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WO/2002/040440A1 |
A process for making 6-aminocaproic acid by hydroformylating 3-pentenenitrile to produce 3-, 4-, and 5-formylvaleronitrile (FVN mixture), oxidizing the FVN mixture to produce 3-, 4-, and 5-cyanovaleric acid; hydrogenating the resulting p...
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WO/2002/008171A2 |
The invention relates to a method for separating ammoniac (I) from mixtures (II) containing ammoniac (I) and an amide (IV) is obtained by reacting educts (III) selected from the group consisting of nitriles (IIIa), amines (IIIb), aminoni...
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WO/2001/096294A1 |
The invention relates to a method for the production of caprolactam from a compound of formula (I): NC-(CH¿2?)¿5?-CO-R where R = a carboxamido, carboxlic acid or carboxylate ester group, characterised in that a) a compound (I), or mixt...
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