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WO/2023/047855A1 |
The present invention provides: a photosensitive composition which is not susceptible to an excessive decrease in the weight of components in the photosensitive composition or composition (in cases where the photosensitive composition or...
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WO/2023/044884A1 |
Disclosed is a method for synthesizing a diaryl ether by reacting a nickel/ketone double-catalyzed halogenated aromatic hydrocarbon with an arylphenol, comprising: under the protection of an inert gas, adding a halogenated aromatic hydro...
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WO/2023/040106A1 |
Disclosed in the present invention is a preparation method for an acetamide compound by means of green visible-light catalysis. In the method, LED lamps are used as light sources to provide energy, and economically available aromatic ami...
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WO/2023/040105A1 |
Disclosed is a preparation method for a green visible light-catalyzed acetate compound. In this method, an LED lamp is used as a light source to provide energy, economically available primary, secondary, and tertiary alcohols are used as...
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WO/2023/038411A1 |
An embodiment of the present invention provides a method for preparing a phthalonitrile-based compound, the method comprising the steps of: (a) adding a mixture including a phthalic acid-based compound and a nitrile-based compound into a...
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WO/2023/030279A1 |
Provided are a 3, 3-difluoroallylic onium salt as represented by formula (C), and a preparation method of the substance. Cheap industrial raw materials are used to prepare the important fluorine-containing reagent, which can be used as a...
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WO/2023/024532A1 |
Disclosed in the present invention is a one-step method for preparing a C-N coupling product using nitroaromatic hydrocarbon and alkyl or phenylboronic acid. The method comprises: adding nitroaromatic hydrocarbon, alkyl or phenylboronic ...
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WO/2023/015184A1 |
Provided herein is a process for the preparation of (R)-N-(5-(5-ethyl-1,2,4-oxadiazol-3-yl)-2,3-dihydro-1H-inden
-1-yl)-1-methyl-1H-pyrazole-4-carboxamide, intermediates thereof, and salts of the foregoing.
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WO/2023/003058A1 |
Provided in one embodiment is a method for preparing a phthalonitrile-based compound, comprising the steps of: (a) preparing a mixture comprising a phthalic acid-based compound and a nitrile-based compound; and (b) reacting the mixture, ...
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WO/2023/283831A1 |
Disclosed in the present invention is a compound having an inhibitory effect on a virus main protease (3CL protease, Mpro), which also has a significant inhibitory activity on the Mpros of SARS coronavirus (SARS-CoV) and novel coronaviru...
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WO/2023/278688A1 |
Reaction pathways and conditions for the production of nitrogen-containing chelators, such as a glycine derivative, with reduction of ammonia byproducts. In particular, the present disclosure describes a process for the production of a n...
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WO/2022/243099A1 |
A process for preparing substituted biphenyls of the formula (I) which comprises reacting a compound of the formula (Il) in the presence of a base and of a palladium catalyst, with an organoboron compound of the formula (IV).
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WO/2022/230656A1 |
Provided is a method for producing a methyl-added compound, the method comprising a step for methylating a dinitrile compound represented by formula (1) in the presence of potassium carbonate and dimethyl carbonate to obtain the methyl-a...
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WO/2022/231697A1 |
An aspect of the present disclosure is a method that includes a first reacting a molecule from at least one of a carboxylic acid, an ester of a carboxylic acid, and/or an anhydride with ammonia to form a nitrile, where the first reacting...
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WO/2022/223678A2 |
Use of a compound of Formula 1 in a non-aqueous battery electrolyte formulation: wherein: R is an optionally fluorinated alky group, conveniently C1-6; each Y is independently H or F. X is H; a halogen, conveniently F; or an alkyl or a f...
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WO/2022/218733A1 |
The present invention provides a process for producing a substituted enamine compound of formula (I), and a process for producing oxazole compounds from the compound of formula (I). According to the processes of the present invention, it...
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WO/2022/219870A1 |
Provided is a platinum group metal supported catalyst column through which a reaction of forming a carbon-carbon bond in an aromatic bromide can be carried out at high yield. In the platinum group metal supported catalyst column, a plati...
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WO/2022/219953A1 |
The purpose of the present invention is to provide: an ion exchanger which shows small shrinkage upon the contact with an organic solvent in a water-wetted state; and a method for producing the ion exchanger. Provided is an ion exchanger...
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WO/2022/218734A1 |
The present invention provides a substituted enamine compound of formula (I), and a process for producing oxazole compounds from the compound of formula (I). According to the processes of the present invention, it can produce substituted...
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WO/2022/213997A1 |
Disclosed are a compound comprising a structural unit as represented by at least one of formulae (1)-(4). The compound comprises an alcohol-soluble or water-soluble group. The compound has a large molar extinction coefficient, a color co...
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WO/2022/214068A1 |
A heat removal pipe group, a fluidized-bed reactor (1) provided with the heat removal pipe group, a method for using the heat removal pipe group to control the temperature of the fluidized-bed reactor (1), and a method for fabricating un...
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WO/2022/214067A1 |
A cooling coil set, a method for increasing reaction load using the cooling coil set, and an application thereof in preparation of an unsaturated nitrile. The cooling coil set comprises ten cooling coils, and among at least one cooling c...
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WO/2022/214069A1 |
A heat removal pipe group, a method for controlling the reaction temperature by using the heat removal pipe group, and a method for fabricating unsaturated nitriles. The heat removal pipe group comprises at least one first heat removal p...
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WO/2022/205574A1 |
The present invention relates to a method for producing entacapone tablets, comprising: auxiliary material sieving, batching, mixing, sieving, mixing, dry granulation, sieving, mixing with magnesium stearate, and pressing into a tablet f...
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WO/2022/187848A1 |
The present invention relates to a curable cyanoacrylate composition comprising (i) at least one cyanoacrylate monomer, and (ii) at least one free radical stabilizer, wherein the free radical stabilizer is non-hazardous and shows good co...
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WO/2022/178691A1 |
Disclosed is a method for preparing 2-iodo-aryl ether on the basis of o-halogen iodobenzene in the absence of a catalyst, comprising: adding an alkali metal hydride and a phenol into a solvent; and then adding o-halogen iodobenzene for r...
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WO/2022/178692A1 |
Disclosed in the present invention is a method for preparing 2-iodo aryl ether under the action of alkali metal hydride: adding alkali metal hydride and phenol to a solvent, then adding 1,2-diiodoarene, and reacting at 0-100℃ to obtain...
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WO/2022/173933A1 |
Provided herein are processes for the separation of acetonitrile from low-purity feedstock streams. The provided processes are particularly useful for isolating acetonitrile at high purity from chemical manufacturing waste streams that i...
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WO/2022/166870A1 |
Disclosed in the present invention is a preparation method for a tetra-substituted allenoic acid compound based on a palladium catalytic system, that is, an optically active allenoic acid compound having axial chirality is directly const...
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WO/2022/164840A1 |
A catalyst composition for converting an alcohol to olefins, the catalyst composition comprising the following components: (a) a support (e.g., particles) comprising silicon and oxygen; (b) at least one of copper and silver residing on a...
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WO/2022/151968A1 |
The present invention relates to a method for purifying key intermediates of Citalopram, i.e. 4-[4-(dimethylamino)-1-(4-fluorophenyl)-1-hydroxybutyl]-3-hy
droxymethylbenzonitrile and a salt thereof. The method comprises dissolving crude ...
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WO/2022/153604A1 |
Provided is a catalyst having a platinum-group metal ion supported thereon, which comprises a platinum-group metal ion or a platinum-group metal complex ion supported on a non-particulate organic porous ion exchanger, the catalyst being ...
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WO/2022/150014A1 |
Disclosed herein is a material for photocatalytic hydrogen peroxide generation, said material being zirconium trisulfide ZrS3 with defects, wherein the defects comprise disulfide S2 2-vacancies and sulfide S2- vacancies. Also disclosed h...
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WO/2022/145394A1 |
A catalyst for a vapor-phase catalytic ammoxidation reaction, said catalyst comprising a metal oxide and a silica carrier that supports the metal oxide. With respect to this catalyst for a vapor-phase catalytic ammoxidation reaction, the...
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WO/2022/142484A1 |
A porous polymer having a pore volume of 0.3-2.5 cm3/g, the porous polymer comprising pores having a first pore diameter and pores having a second pore diameter, wherein the pore volume ratio of the pores having the first pore diameter t...
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WO/2022/128833A1 |
Suggested is a solid transition metal-ligand complex obtainable by adding a source of alkali to an aqueous suspension of transition metal halides and suitable ligands.
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WO/2022/122273A1 |
The invention pertains to a process for purifying ethylene cyanohydrin comprising incubating a industrial grade ethylene cyanohydrin product with at least one titanium(IV)alkoxide; and to ethylene cyanohydrin products with purities > 99 ...
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WO/2022/117421A1 |
Process and catalyst for producing selectively acetonitrile comprising reacting a feed stream comprising methanol and ammonia in presence of a bimetallic catalyst com-prising a support, and a first metal selected from Fe, Ni, Co and a se...
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WO/2022/108323A1 |
The present invention relates: to an ammoxidation catalyst exhibiting improved stability under high temperature, and excellent activity, reaction conversion, and selectivity with respect to an ammoxidation reaction of propylene; a method...
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WO/2022/092657A1 |
Disclosed are a system for manufacturing a phthalonitrile-based compound using a continuous process and a method for manufacturing a phthalonitrile-based compound using same, the system comprising: a first reaction unit that is filled wi...
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WO/2022/092484A1 |
A method for preparation of an acrylonitrile dimer according to the present invention enables an efficient recovery of an acrylonitrile dimer catalyst while reducing the process load.
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WO/2022/082329A1 |
Disclosed herein are processes for preparing 3-fluoro-5-(((1S,2aR)-1,3,3,4,4- pentafluoro-2a-hydroxy-2,2a,3,4-tetrahydro-1H-cyclopenta[cd]
inden-7-yl)oxy)benzonitrile (hereinafter as compound (I) having the following structure).
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WO/2022/083494A1 |
The present application relates to a cis-para-substituted cyclohexylaminonitrile salt represented by formula (I), a preparation method therefor and use thereof as an intermediate for preparing a pesticide, and a method for preparing the ...
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WO/2022/086822A1 |
Disclosed herein are processes for preparing 3-fluoro-5-(((1S,2aR)-1,3,3,4,4-pentafluoro-2a-hydroxy-2,2a,
3,4-tetrahydro-1H-cyclopenta[cd]inden-7-yl)oxy)benzonitrile or a pharmaceutically acceptable salt thereof.
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WO/2022/085384A1 |
The present invention addresses the problem of providing a novel ruthenium complex, in which addition of a base during catalyst activation is not necessary, which exhibits excellent crystallinity and stability, for which large scale synt...
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WO/2022/080751A1 |
The present invention provides a preparation method of an acrylonitrile dimer, the method being capable of securing a high-purity acrylonitrile dimer and facilitating the recovery of a catalyst used in the reaction to improve process eff...
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WO/2022/080621A1 |
The present invention relates to a method for reacting acrylonitrile in the presence of a reaction solvent, a proton-donor solvent, and a phosphorous-based catalyst to prepare an acrylonitrile dimer, and then adding an amine-based solven...
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WO/2022/077851A1 |
The present invention discloses a 1,4-dihydropyridine chiral hybrid hydrogenation reagent, a preparation method and an application thereof. The 1,4-dihydropyridine chiral hybrid hydrogenation reagent has a structure represented by formul...
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WO/2022/069559A1 |
The present invention relates to a method for performing a condensation reaction by heterogeneous catalysis using a surface-reacted calcium carbonate catalyst and the use of a dry surface-reacted calcium carbonate as a catalyst. The cond...
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WO/2022/064454A1 |
The present invention discloses a process for the synthesis of compound of formula (VII) or a salt thereof, wherein, R, R1, R2, R3, R4a and R4b are as defined in the detailed description. The process further comprises the synthesis of an...
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