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WO/2023/204845A1 |
Recycled content triacetin (r-triacetin) is produced using a process and system that applies physical and/or credit-based recycled content from one or more feed materials to triacetin produced from the feed materials.
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WO/2023/205622A2 |
The disclosure relates to systems and methods for preparing precursor molecules including a hyperpolarized heteronucleus. The precursor molecules can be metabolites or derivatives. Heteronucleus hyperpolarization can be achieved by hydro...
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WO/2023/195668A1 |
Through a transesterification reaction in which a predetermined amount of bis(2-hydroxyethyl)terephthalate relative to glycol is fed in a divided or continuous manner, bis(glycol)terephthalate with a low residual amount of an ethylene gl...
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WO/2023/192847A1 |
Polymerization inhibitor compositions are provided. The polymerization inhibitor compositions include at least a first inhibitor compound including a hydroxylamine, a second inhibitor including phenylenediamine, and a third inhibitor inc...
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WO/2023/187302A1 |
The invention relates to the use of a composition comprising at least one derivative compound which is derived from cashew nut shell oil (CNSL) and which has at least one ester function and/or at least one epoxide function, as a plastici...
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WO/2023/190102A1 |
Provided is a method for producing an aromatic bis(hydroxyalkyl) dicarboxylate by depolymerizing a polyester in the presence of a catalyst. This method for producing an aromatic bis(hydroxyalkyl) dicarboxylate by depolymerizing a polyest...
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WO/2023/192840A1 |
Polymerization inhibitor compositions are provided. The polymerization inhibitor compositions include at least a first inhibitor compound having a stable nitroxide radical and a second inhibitor compound having a hydroxylamine. Methods o...
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WO/2023/192843A1 |
Inhibitor compositions for abating undesirable polymerization during processing of hydrocarbon stream laden with reactive vinylic monomers are provided. The polymerization inhibitor compositions include at least a first inhibitor compoun...
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WO/2023/192868A1 |
Inhibitor compositions for abating undesirable polymerization in the vapor space during purification of reactive vinylic monomers are provided. The polymerization inhibitor compositions include at least a first inhibitor compound having ...
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WO/2023/182046A1 |
The present invention provides an ester compound which is represented by at least one of general formula (1) and general formula (2). In general formula (1), each of R1 to R3 represents a hydrogen atom, an alkyl group or a caprolactone s...
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WO/2023/178693A1 |
Provided in the present invention is a method for preparing lemborexant, which method comprises the following steps: subjecting compound II and compound III as raw materials to a reaction in a second reaction solvent to obtain lemborexan...
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WO/2023/181926A1 |
One embodiment of the present invention provides a method for purifying a (meth)acrylic acid monomer and/or a (meth)acrylic acid ester monomer, the method comprising purification of a composition that contains a (meth)acrylic acid monome...
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WO/2023/182349A1 |
A method for producing a salicylic acid ester represented by general formula (2), characterized in that salicylic acid and an alcohol represented by general formula (1) are brought into contact with a solid acid catalyst at a reaction te...
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WO/2023/173717A1 |
The present invention relates to a preparation method for an intermediate compound acting as a posaconazole synthetic drug, and an intermediate compound prepared thereby. The preparation method for a compound of formula (I) provided by t...
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WO/2023/175524A1 |
PET depolymerization process wherein PET, a ionic liquid consisting of (2-hydroxyethyl)trimethylammonium argininate [Cho][Arg] and methanol are mixed together at a temperature ranging from -50 to 70°C. The weight ratio of PET to the ion...
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WO/2023/173214A1 |
The present application is related to a process for preparing 1-tetralone compounds such as compounds of Formula I by reacting a,|3-unsaturated cyclic ketones that comprise two available hydrogens on the y carbon to the carbonyl with acr...
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WO/2023/176687A1 |
The present invention addresses the problem of providing a novel dicarboxylic acid compound that has a further improved refractive index. The solution is to provide a biphenanthrene compound, represented by general formula (1), or an alk...
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WO/2023/177866A1 |
The present invention relates to the preparation of nucleic acids, nucleosides, nucleotides, and analogues thereof useful as potent and stable RNA interference agents. The present invention provides improved yields and avoids the use of ...
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WO/2023/177133A1 |
The present invention relates to a method for separating water from a mixture of PGME, PGMEA, and water, the method comprising: a reactor introduction step of introducing PGME and acetic acid into a reactor; a distillation column introdu...
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WO/2023/169863A1 |
The present invention relates to a process for preparing high purity (meth)acrylates, in particular hydroxyl-functional (meth)acrylates having high purity. The process employs at least one suitable reactor, an intermediate vessel, in whi...
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WO/2023/170360A1 |
The invention relates to a method for manufacturing a jet fuel comprising at least the steps of: a) providing ethyl esters of fatty acids resulting from the reaction of animal fats and/or used oils with methanol in a transesterification ...
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WO/2023/169520A1 |
The use of an arylvinyl α-carbonyl acid ester compound (I) as a photoinitiator in LED photopolymerization and a preparation method therefor, which relate to the field of polymer photocuring, and are provided on the basis of the problems...
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WO/2023/169810A1 |
The present invention relates to a process for producing alkyl methacrylates (AMA), in particular methyl methacrylate (MMA), and alpha-hydroxyisobutyric acid alkyl esters (2-HIBSA), in particular alpha-hydroxyisobutyric acid methyl ester...
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WO/2023/170669A1 |
The invention relates to a composition comprising an unsaturated polyester dissolved in a monomer solution together with trinol (meth) acrylate, wherein the composition is essentially free of tribromoneopentyl alcohol ( TBNPA) of the for...
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WO/2023/167325A1 |
The present invention addresses the problem of developing a metal catalyst which is suitable for continuous flow organic synthesis reaction, is excellent in durability, and has high activity. The present invention provides an immobiliz...
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WO/2023/166004A1 |
The present invention relates to the field of organic synthesis and more specifically it concerns a process for preparing compound of formula (I). The compound of formula (III), the compound of formula (IV) and the compound of formula (V...
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WO/2023/165094A1 |
Disclosed in the present application are a hydroxypentyl benzoic acid diester compound, and a preparation method therefor and the use thereof. The principle of combination is used in the present application. On the one hand, the drug con...
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WO/2023/163035A1 |
Provided is an oligoester which is obtained by subjecting the following to an esterification reaction: component (A), a glycerin; component (B), a dicarboxylic acid having 2-12 carbon atoms; and component (C), one or more types of fatty ...
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WO/2023/160035A1 |
A β-elemene vinylation coupled derivative, and a preparation method therefor and the use thereof in the preparation of an antitumor drug. Provided are a β-elemene vinylation coupled derivative having a structure as represented by formu...
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WO/2023/159293A1 |
The invention is a technology for the production of low-acidity triglycerides and purified glycerides using butyl alcohol that converts free fatty acids into fatty esters with a low solidification point, without loss of fatty material. T...
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WO/2023/161049A1 |
The present invention relates to hovel photoinitiators having improved performances and to their use in photopolymerization compositions. The invention also relates to a process for the photopolymerization of compositions comprising said...
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WO/2023/159959A1 |
The present invention relates to a preparation method for esterified alkane, comprising mixing gaseous alkane with oxygen or air to obtain a mixed gas, adding a chlorine-containing compound catalyst and/or a nitrogen-containing compound ...
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WO/2023/163481A1 |
A method, according to one embodiment, depolymerizes waste polyester by means of a multi-step reaction, wherein a latter reaction is carried out at a low temperature, and ion exchange, etc., is further carried out, thereby enabling the p...
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WO/2023/156429A1 |
The present invention relates to the field of organic synthesis and more specifically it concerns a process for preparing compound of formula (I). The compound of formula (V), the compound of formula (VI) and the compound of formula (VII...
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WO/2023/158996A1 |
Recycled content monoethylene glycol (r-MEG) is produced using a process and system that applies physical and/or credit-based recycled content from one or more feed materials to the MEG produced from the feed materials. Recycled content ...
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WO/2023/155367A1 |
The present invention relates to the recycling of textiles, and in particular, to a method for recycling a blended fabric containing polyester. The method comprises: treating a starting material to be treated containing polyester, subjec...
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WO/2023/157862A1 |
Provided is a method for producing α-fluoroether starting from an inactivated chloride. Disclosed is a method for producing a compound represented by formula (3), the method comprising step A in which a compound represented by formula (...
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WO/2023/156471A1 |
A bioactive candle comprising a wick surrounded by a combustible material, the candle also comprising iodine in an emittable form from the candle into the surroundings under the impact of heat generated when burning the candle. A bioacti...
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WO/2023/157770A1 |
A compound represented by general formula (2) is obtained by irradiating a reaction system containing a compound represented by general formula (1) and a palladium catalyst with microwaves, causing coupling of the compound represented by...
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WO/2023/152582A1 |
A process for removing one or more impurities from a stream of tetrahydrofuran in a tetrahydrofuran polymerization process is provided. The process includes the steps of: (a) providing an input stream of tetrahydrofuran to the tetrahydro...
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WO/2022/122814A9 |
The present invention relates to a process for the continuous preparation of (meth)acrylate by reacting an alcohol with (meth)acrylic acid using at lest one control unit which is closed-loop controlled by a sensor (S).
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WO/2023/149559A1 |
[Problem] The present invention provides a catalyst for hydrogenation reactions, the catalyst having excellent catalyst durability and being capable of selectively hydrogenating only some functional groups and/or unsaturated bonds of an ...
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WO/2023/143974A1 |
The present invention relates to a process for storing and/or transporting an ethylenically unsaturated compound, the ethylenically unsaturated compound being protected with a phenol against undesired radical polymerization.
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WO/2023/143939A1 |
The present invention relates to a method for storing and/or transporting an ethylenically unsaturated compound, wherein the ethylenically unsaturated compound is protected against undesired radical polymerization with a sterically hinde...
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WO/2023/143340A1 |
The present invention discloses 2-hydroxyethyl methyl terephthalate and a preparation method therefor. The preparation method mainly comprises: subjecting a recycled polyester to alcoholysis to obtain an aqueous 2-hydroxyethyl methyl ter...
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WO/2023/142600A1 |
The present invention relates to an ionizable amino lipid represented by formula (I) or a pharmaceutically acceptable salt thereof. The amino lipid can be used to deliver nucleic acids and small molecule drugs and has two ester bonds, wh...
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WO/2023/143633A2 |
The present invention provides a salvianolic acid A sodium salt hydrate and a preparation method therefor. Specifically, the salvianolic acid A sodium salt hydrate provided by the present invention is a crystal formed by salvianolic acid...
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WO/2023/142460A1 |
The present invention discloses a method for synthesizing aryl phenol by means of a reaction between an aryl halide and a phenol compound under the induction of visible light, which method comprises: under the protection of an inert gas,...
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WO/2023/137675A1 |
Disclosed in the present invention is the use of a nickel/ketone dual-catalysis system in a cross-coupling reaction of aryl halide and sodium arylsulfinate. Specifically, in a nitrogen atmosphere, aryl halide, sodium arylsulfinate, nicke...
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WO/2023/127855A1 |
The present disclosure provides a novel synthetic intermediate of prostaglandin or an optically active substance thereof, and a production method that uses the same. More specifically, in the method according to the present disclosure fo...
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