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Matches 1 - 50 out of 13,074

Document Document Title
WO/2019/174221A1
The present invention pertains to a process for producing an amine from an aldehyde or a precursor thereof, or a ketone in a solvent system containing water. The process is more environmentally friendly and permits to obtain an amine com...  
WO/2019/170009A1
Disclosed in the present invention are a memantine paroxetine eutectic salt, a preparation method therefor, a pharmaceutical composition and use thereof. The eutectic salt of the present invention is a memantine paroxetine sulfate hydrat...  
WO/2019/168135A1
The present invention relates to a method for converting an N,N-dialkylamide compound into an ester compound using, as a catalyst, a complex of a fourth-period transition metal, the complex being obtained by reacting a precursor includin...  
WO/2019/166483A1
The present invention relates to a process for separating at least one alkanolamine from a mixture comprising an aliphatic primary diamine and the at least one alkanolamine. The invention further relates to a process for the preparation ...  
WO/2019/167043A1
The present disclosure concerns processes for regenerating organocations from perchlorate-rich waste products, more specifically transformation of water-insoluble organocation-perchlorate salt, originating from perchlorate-removal water ...  
WO/2019/166482A1
The present invention relates to a process for purifying hexamethylenediamine. The invention further relates to a process for the preparation of hexamethylenediamine by hydrogenating adiponitrile in the presence of a hydrogenation cataly...  
WO/2019/166578A1
The present invention relates to the field of catalytic hydrogenation and to the use of ruthenium complexes having a bidentate diphosphine ligand or two monodentate phosphine ligands, two carboxylate ligands and optionally a diamine liga...  
WO/2019/161534A1
The present disclosure provides novel processes for the preparation of compounds of Formula (I). Some of these compounds are useful as stimulators of soluble guanylate cyclase (sGC). Others are useful intermediates towards the preparatio...  
WO/2019/158463A1
A process for the work-up of salt-containing process water which contains an alkali metal chloride as salt in a concentration of at least 4% by weight and organic or inorganic and organic impurities from chemical production processes and...  
WO/2019/159596A1
Provided is a method for preparing a coupled body represented by general formula (3), the coupled body being obtained by reacting a compound represented by general formula (1) and a compound represented by general formula (2) in the pres...  
WO/2019/158719A1
A process is provided for the production of bis-choline tetrathiomolybdate, the process comprising reacting a choline salt with ammonium tetrathiomolybdate, wherein the choline salt is a hydroxide, acetate, or halide choline salt, wherei...  
WO/2019/137083A1
Disclosed in the present invention are a one-step process for producing a nylon 5X salt and a prepared high-purity nylon 5X salt. The process comprises: subjecting a lysine fermentation liquid to ion exchange and desorption to obtain a p...  
WO/2019/131270A1
The present invention pertains to an activated carbon, which shows an electric conductivity of 3.5 s/cm or greater when determined by the powder resistance measurement method under a load of 12 kN and has an oxygen content of 3.0 mass% o...  
WO/2019/120064A1
The present invention relates to a method for preparing isophorone diamine by means of a hydrogenation reduction of isophorone nitrile imine. The hydrogenation reduction is continuously carried out in a multi-stage bubble column reactor ...  
WO/2019/119337A1
The present invention relates to a method for preparing primary diamines from amino acid compounds. Specifically, this invention is related to the preparation of a primary diamine from an amino acid and/or its salt by Kolbe electrolysis ...  
WO/2019/114767A1
Disclosed is a catalyst and a preparation method thereof for catalytic selective hydrogenation of chloroaromatic nitro compounds. The catalyst is a Pt/TiO2/SBA-15 or Pt/ZrO2/SBA-15 catalyst, and the platinum content of the catalyst is 0....  
WO/2019/078528A3
Provided is a method for purifying 1,5-diaminopentane, the method comprising the steps of: preparing a fermentation broth comprising a carbonate of 1,5-diaminopentane; heating the fermentation broth to prepare a first composition; evapor...  
WO/2019/105782A1
The invention relates to a process for the continuous preparation of 1,2-propylene diamine (1,2-PDA) and dimethyldiethylene triamine (DMDETA) by reacting monoisopropanolamine (MIPOA) with ammonia in the presence of hydrogen and a support...  
WO/2019/105324A1
Disclosed is a method for preparing salicylamide acetate. The method comprises the steps of: (1) carrying out amino protection on salicylaldehyde having a structure represented by formula 1 to obtain a compound having a structure represe...  
WO/2019/096860A1
The present invention relates to a process for the preparation of enantiomerically and diastereomerically enriched cyclobutane amines and amides by reacting (a) cyclopropylcarbonitrile to a cyclopropylcarbaldehyde, (b) further reacting t...  
WO/2019/084740A1
Disclosed is a method for preparing a Glecaprevir synthetic intermediate. An epoxy cyclopentane is used as a starting material to carry out a ring opening reaction to form 2-hydroxy-1-propenyloxycyclopentane, the same being acetylated to...  
WO/2019/087009A1
Disclosed herein is a method for decontamination of nitroarenes including fabricating an exemplary nanomotor and chemically reducing nitroarenes of an acidic solution using the exemplary nanomotor. Fabricating the exemplary nanomotor may...  
WO/2019/081284A1
The invention relates to a method for separating NMEDA from a mixture containing water (H2O), ethylenediamine (EDA) and N-methylethylenediamine (NMEDA) by fractionation in a fractionating column (NMEDA distillation), characterised in tha...  
WO/2019/081285A1
The invention relates to a method for producing ethyleneamines and/or alkanolamines, having the following steps: 1) reacting MEG with ammonia in the presence of hydrogen and an amination catalyst; and 2) separating hydrogen and ammonia f...  
WO/2019/081283A1
The invention relates to a method for purifying a mixture containing MEG, MEA, EDA and DETA, as well as low-boiling components having a boiling point lower than or the same as that of PIP, and high-boiling components having a boiling poi...  
WO/2019/081972A1
Preparation of a salt of 4-nitrophenyl ethylamine with (R)-mandelic acid and its use for the synthesis of mirabegron is disclosed. 4-Nitrophenyl ethylamine (1) is prepared by reduction of 4-nitrobenzyl cyanide (7) in a solvent with the u...  
WO/2019/081286A1
The invention relates to a method for separating ethylenediamine, according to which: a) a mixture containing water (H2O), ethylenediamine (EDA) and N-methylethylenediamine (NMEDA) is introduced into a fractionating column (NMEDA distill...  
WO/2019/076658A1
The present invention relates to a method for the continuous hydrogenation of a nitro compound to form the corresponding amine in a liquid reaction mixture containing the nitro compound, in a reaction chamber, in the presence of a suppor...  
WO/2019/078528A2
Provided is a method for purifying 1,5-diaminopentane, the method comprising the steps of: preparing a fermentation broth comprising a carbonate of 1,5-diaminopentane; heating the fermentation broth to prepare a first composition; evapor...  
WO/2019/073427A1
The present invention relates to an industrially feasible and economically viable process for preparation of trientine dihydrochloride of formula (I) in significantly high yield and purity.  
WO/2019/063695A1
The invention relates to primary para-phenylenediamine compounds substituted with an aliphatic chain comprising a trialkyl ammonium group according to formula (I). Formula (I), wherein: ALK is a linear or branched, optionally substituted...  
WO/2019/066076A1
Provided is a catalyst containing a carrier, and a metal obtained by reducing metal ions carried by the carrier 1) in a supercritical state or 2) in a polar organic solvent, the carrier being an inorganic porous body having a hierarchica...  
WO/2019/063952A1
The invention relates to a new method for the synthesis of unsymmetrical tertiary amines using alcohol and an imine, and to new tertiary amines.  
WO/2019/058290A1
The present invention relates to an improved process for the preparation of optically chiral amino compound. The present invention particularly relates to the improved process for the preparation of (S)-1-amino-2,3-dihydro-1H-indene-4-ca...  
WO/2019/051755A1
Disclosed is a method for preparing tetraethylammonium tetrafluoroborate, comprising the following steps: adding 25-35 parts of a fluoroboric acid aqueous solution to a reactor made of a polytetrafluoroethylene material, at 40ºC-50ºC, ...  
WO/2019/041961A1
Provided are a transparent nucleating agent, a preparation method therefor and the use thereof, wherein the transparent nucleating agent comprises a compound represented by formula (1) and a derivative thereof; the method comprises: brin...  
WO/2019/044585A1
Provided is a nucleus hydrogenation reaction catalyst having a catalytic activity superior to conventional ruthenium catalysts in a nucleus hydrogenation reaction of an aromatic compound in which at least one amino group is bonded to an ...  
WO/2019/044584A1
Provided is a nucleus hydrogenation reaction catalyst having a catalytic activity superior to conventional ruthenium catalysts in a nucleus hydrogenation reaction of an aromatic compound in which at least one amino group is bonded to an ...  
WO/2019/037161A1
A method for synthesizing a key clofazimine intermediate N-(4-chlorphenyl)-1,2-phenylenediamine. The method comprises: 1) using o-fluoronitrobenzene and p-chloroaniline as raw materials and an organic base as a catalyst for condensation ...  
WO/2019/037438A1
The present invention relates to a monomeric pentamethylenediamine adipate of a bio-based material nylon 56, a crystal structure thereof, a crystalline powder thereof, and a preparation method therefor. The pentamethylenediamine adipate ...  
WO/2019/035381A1
Provided is a method for producing dicyanocyclohexane, the method having a step for obtaining dicyanocyclohexane by making a cyclohexanedicarboxylic acid and/or a salt thereof, or a thermal concentrate of an aqueous ammonia solution of t...  
WO/2019/031454A1
Provided are: a high-purity arylsulfonic acid amine salt vinyl monomer which has both of excellent storage stability and amphipathicity such that the monomer is soluble in both of water and an organic solvent and which is an extremely in...  
WO/2019/030187A1
The invention discloses a method for the preparation of substituted 4-(heptafluoro-2-propyl) anilines by reaction of 2-bromoheptafluoropropane with anilines in the presence of sodium dithionite, in a solvent and in the presence of a cata...  
WO/2019/030189A1
The present invention relates to a process to convert cyclic alkylene ureas into their corresponding alkylene amines by reaction with an amine compound chosen from the group of primary amines or secondary amines that have a higher boilin...  
WO/2019/030197A1
The present invention relates to a process to prepare propylene amines of the formula NH2-(A-NH-)pR, wherein R is a hydrogen atom or an alkyl group, p is at least 1 when R is an alkyl group, and at least 2 when R is a hydrogen atom, or d...  
WO/2019/030188A1
The present invention relates to a process to convert the cyclic monourea of ethylene amine compounds (U-EA) into ethylene amine compound (EA) by performing a reactive separation step using a reaction mixture containing the cyclic monour...  
WO/2019/030196A1
The invention relates to a process for converting one or more cyclic ethylene ureas into corresponding ethylene amines and carbon dioxide. In the process, water is contacted with one or more cyclic alkylene urea compounds comprising one ...  
WO/2019/030193A1
The invention pertains to a process for converting cyclic alkyleneureas into their corresponding alkyleneamines, comprising - in a first step converting cyclic alkyleneureas into their corresponding alkyleneamines by reacting cyclic alky...  
WO/2019/030192A1
The present invention is directed to a process for converting cyclic alkyleneureas into their corresponding alkyleneamines wherein a feedstock comprising cyclic alkyleneureas is reacted in the liquid phase with water in an amount of 0. -...  
WO/2019/030190A1
The invention pertains to a process for converting a feedstock comprising cyclic alkyleneureas into their corresponding alkyleneamines, comprising - a CO2 removal step in which cyclic alkyleneureas are converted into their corresponding ...  

Matches 1 - 50 out of 13,074