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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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.
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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...
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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...
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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.
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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...
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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, ...
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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...
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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 ...
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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 ...
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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 ...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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. -...
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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 ...
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WO/2019/011709A1 |
The invention pertains to a process for manufacturing a mixture of straight-chain higher ethyleneamines and non-straight-chain higher ethyleneamines selected from branched higher ethyleneamines and cyclic higher ethyleneamines, or the ur...
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WO/2019/013954A1 |
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) mixing the mixed amide derivatives with an aqueous solution of ammonia or ammonium hydroxide in the presence or absence...
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WO/2019/011711A1 |
The present invention relates to a to prepare ethylene amines of the formula NH2-(C2H4-NH-)pH wherein p is at least 2, or derivatives thereof wherein one or more units -NH-C2H4-NH- may be present as a cyclic ethylene urea unit (I) compri...
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WO/2019/011708A1 |
The invention pertains to a process to prepare ethylene amines with n ethyleneunits and n+1 amine groups wherein n is at least 4, or urea derivatives of said ethylene amines, by reacting an ethanolamine-functional compound, an amine-func...
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WO/2019/011710A1 |
The present invention relates to a process to prepare ethyleneamines of the formula NH2-(C2H4-NH-)PI-I wherein p is at least 3, or derivatives thereof wherein one or more units -NH-C2H4-NH- may be present as a cyclic ethylene urea unit o...
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WO/2019/010999A1 |
Provided are a quantum dot and a quantum dot preparation method. The method comprises the following steps: preparing a quantum dot solution, preparing an ion-containing organic ligand precursor, and adding the ion-containing organic liga...
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WO/2019/005628A1 |
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) recovering alkylamine by distilling or by extracting with an extractant solvent; (2) adding an acid and an extractant s...
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WO/2019/002459A1 |
The invention relates to enzymes for use in a method for the stereoselective reduction of carbonyl compounds or oxidation of hydroxy compounds, in a method for isomerization between ephedrine and pseudoephedrine, and in a method for the ...
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WO/2019/005630A1 |
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) recovering alkylamine from an aqueous solution of an alkali hydroxide hydrolysis of the mixed amide derivatives by dist...
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WO/2019/005629A1 |
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) adding water and an extractant solvent to the aqueous suspension of an acid hydrolysis of the mixed amide derivatives t...
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WO/2019/005631A1 |
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) cooling the hydrolysis solution to crystallize and separate alkali salt of long chain dibasic acid to provide an aqueou...
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WO/2018/229237A1 |
The present invention relates to the production of tri-functional aromatic molecules from diformylfuran, in particular to the production of tri-methyl benzene derivatives such as for example trimellitic acid or 1,2,4-tri(aminomethyl)benz...
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WO/2018/226376A1 |
Methods of making antidegradant compounds are disclosed in which a p-phenylenediamine is reacted with a diol to obtain mixtures comprising the antidegradant compounds.
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WO/2018/226372A1 |
A method of making antidegradant compounds is disclosed, in which a p-phenylenediamine corresponding to formula IV is reacted with an alpha-hydroxy carbonyl compound corresponding to formula II to thereby obtain an enediamine, which is r...
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WO/2018/225737A1 |
Provided is a catalyst for debenzylation reactions, which enables the achievement of a higher yield of a target product (a debenzylated product) in comparison to conventional Pd-supporting catalysts in a debenzylation reaction wherein a ...
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WO/2018/226375A1 |
Methods of making antidegradant compounds of formula I are disclosed in which a p-phenylenediamine of formula IV is reacted with a diol of formula II to obtain mixtures comprising the antidegradant compounds.
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WO/2018/224315A1 |
The invention relates to a method for producing alkanolamines and/or ethyleneamines in the liquid phase by reacting ethylene glycol and/or monoethanolamine with ammonia in the presence of an amination catalyst which contains one or more ...
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WO/2018/224316A1 |
The invention relates to a method for producing alkanolamines and/or ethyleneamines in the liquid phase, by reacting ethylene glycol and/or monoethanolamine with ammonia in the presence of an amination catalyst containing Co, Ru and Sn.
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WO/2018/224321A1 |
The invention relates to a method for producing alkanolamines and/or ethyleneamines in the liquid phase, by reacting ethylene glycol and/or monoethanolamine with ammonia in the presence of an amination catalyst obtained by reducing a cat...
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