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WO/2021/247583A1 |
Disclosed herein are methods for synthesizing fatty olefin metathesis products of high Z-isomeric purity from olefin feedstocks of low Z-isomeric purity. The methods include contacting a contacting an olefin metathesis reaction partner, ...
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WO/2021/239891A1 |
The invention relates to Schrock-alkylidene complexes comprising a phenanthroline ligand. The complexes may dissociate when subjected to a solvent and release the complex being catalytically active in an olefinic metathesis reaction with...
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WO/2021/235518A1 |
The present invention is a production method wherein: a first ester compound represented by formula (2) is produced by reacting vinyl acetate, a primary or secondary alcohol represented by formula (1) and carbon monoxide with each other;...
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WO/2021/234249A1 |
The present invention relates to an improved method for regeneration, by thermal cracking, of a mixture of heavy by-products (residues) originating from an acrylic acid production unit and an acrylic ester production unit, leading to the...
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WO/2021/229449A1 |
A method includes depolymerizing post-consumer or post-industrial recycled polyethylene terephthalate (rPET) to form bis(2-hydroxyethyl) terephthalate (BHET), and reacting at least a portion of the BHET with a catalyst to form an alcohol...
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WO/2021/227136A1 |
An enhanced reaction system and method for preparing cyclohexanone by selective hydrogenation of benzene. The system comprises a hydrogenation reactor (10); the hydrogenation reactor (10) is provided with a discharge port (11), and the d...
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WO/2021/231271A1 |
A process for synthesizing (R)-3 -hy droxybutyl (R)-3 -hy droxybutanoate from ethyl (R)-3-hydroxybutanoate and (R)-l,3-butanediol, as well a process for synthesizing (R)-3-hy droxybutyl (R)-3-hy droxybutanoate from (R)-3-hydroxybutyric a...
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WO/2021/224063A1 |
The invention relates to a simple and efficient metal-free method for oxidative cleavage of vic-diols, in particular those derived from fatty esters, to the corresponding carboxylic acids, using a cheap, safe and environmentally friendly...
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WO/2021/225833A1 |
Provided herein are processes for synthesizing Mcl-1 inhibitors and intermediates such as compound Z that can be used to prepare them. In particular, provided herein are processes for synthesizing compound A1, and salts or solvates there...
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WO/2021/219409A1 |
The present invention relates to a method for producing hydroxyalkyl(meth)acrylic esters, in particular hydroxyethylmethacrylate (HEMA), comprising, in a first reaction stage, the conversion of (Meth)acrolein with at least one multivalen...
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WO/2021/218197A1 |
An implementation method for promoting lignin depolymerization by pre-oxidation-catalytic hydrogenolysis, which comprises the steps of: pre-oxidizing lignin in a solvent system by using 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ); then co...
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WO/2021/219192A1 |
The present invention primarily relates to a method for producing a compound of formula (I) and/or a physiologically acceptable salt thereof from vanillylmandelic acid and/or a physiologically acceptable salt thereof. The present inventi...
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WO/2021/219663A1 |
The invention relates to a method for preparing ester estolides from a hydroxycarboxylic acid, by an addition reaction of a fatty acid on the hydroxyl function and an esterification reaction of an alcohol on the carboxylic acid function....
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WO/2021/214146A1 |
The invention relates to a safe and efficient process for the for the acylation of an α,ω-alkanediol, which can be used in the manufacture of ω-nitrooxy-C3-10alkane-1-ols. The process is safer to operators and allows to obtain advanta...
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WO/2021/215450A1 |
The present invention addresses the problem of providing a method for producing an α-fluoroacrylic acid ester at a high yield using a compound containing a specific halogen ion. This problem can be solved by a method comprising a step A...
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WO/2021/214145A1 |
The invention relates to a safe and efficient process for the nitrate ester formation of an α,ω-C3-10alkanediol monoacylate. The process is safer to operators and allows to obtain advantageous yields on industrial scale.
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WO/2021/214144A1 |
The invention relates to a safe and efficient process for the hydrolysis of α,ω-C3-10alkanediol mononitrate monoacylates. The process is safer to operators and allows to obtain advantageous yields on industrial scale.
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WO/2021/214143A1 |
The invention relates to a safe and efficient process for the solvent removal and recovery by distillation in a process for the preparation of ω-nitrooxy-C3-10alkane-1-ols. The process is safer to operators and allows to obtain advantag...
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WO/2021/215452A1 |
The present invention addresses the problem of providing a method for producing an α-fluoroacrylic acid ester at a high yield using a small amount of potassium fluoride or the like. The problem can be solved by a method which involves a...
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WO/2021/208951A1 |
Disclosed is a β-diketone cerium (IV) compound of formula (I). The compound has a wide absorption band, is suitable for near ultraviolet-visible region curing as a photoinitiator, and has a high sensitiveness, while also having the adva...
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WO/2021/208331A1 |
Disclosed is a method for preparing 3-carbonyl-biciclo[2,2,2]octane-2-carboxylate. Using 2-(4-alkoxycarbonylcyclohexylidene)acetate as a starting material, 3-carbonyl-biciclo[2,2,2]octane-2-carboxylate is obtained by sequentially perform...
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WO/2021/204018A1 |
Provided in the present invention are two compounds possessing PTP1B inhibitory activity, said compounds having structures represented by formula (1) or formula (2). Disclosed in the present invention are two hydroquinone-containing mero...
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WO/2021/207216A1 |
The present disclosure provides for methods for designing and constructing metal/semiconductor heterostructures as catalysts for a wide range of applications such as oxygen activation. In a particular aspect, the present disclosure provi...
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WO/2021/204789A2 |
The present invention relates to a process for recycling polyacetal having from 8 to 100 000 carbon atoms for obtaining a produced polyoxymethylene dialkyl ether of formula R-(OCH2)n-OR', in which R and R' independently represent a methy...
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WO/2021/204610A1 |
A method of producing fatty acid alkyl ester from an organic oil source containing at least one free fatty acid, wherein the vegetable and/or animal waste oil has an acid number of at least 30 mg KOH/g and wherein the method comprises th...
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WO/2021/200689A1 |
The present invention provides a catalyst which enables the production of isobutylene with high selectivity in cases where isobutylene is produced by means of dehydration of isobutanol. A catalyst according to the present invention conta...
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WO/2021/196777A1 |
The present invention belongs to the technical field of fine chemical engineering, and specifically relates to a polymerizable surfactant with reducibility and a preparation method therefor. The polymerizable surfactant with reducibility...
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WO/2021/198113A1 |
Described herein is a hydroformylation catalyst system and method useful for producing aldehydes from olefin substrates, without using carbon monoxide gas. The hydroformylation catalyst system includes a hydroformylation catalyst complex...
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WO/2021/198782A1 |
The invention relates to a process for the production of ethylene glycol from CO2, comprising the steps of : i) Reducing CO2 to CO; ii) Reacting the CO produced in step i) with an amine to form an oxamide or an oxamate or with an alcohol...
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WO/2021/200640A1 |
The purpose of the present invention is to provide an economical, convenient and reproducible method for evaluating an activity as a fluorinating agent. Provided is a method for evaluating an activity of a fluorinating agent, the metho...
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WO/2021/200795A1 |
The present invention provides a method for producing isobutylene from isobutanol with high selectivity under pressure, while suppressing decrease in the conversion rate of isobutanol. A method for producing isobutylene according to the ...
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WO/2021/197303A1 |
Provided in the present invention are a method for preparing a long-chain fatty diacid monobenzyl ester. The method comprises: 1) subjecting a long fatty chain diacid to an esterification reaction in order to obtain a long fatty chain di...
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WO/2021/191876A1 |
Methods for the synthesis of methyl 2-fluoroacrylate (MFA) are provided. The methods include use of various hydrofluorination agents using a variety of starting materials and reaction schemes. The methyl 2-fluoroacrylate prepared by the ...
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WO/2021/191465A1 |
The invention relates to branched olefins comprising n carbon atoms, where n is an integer from 9 to 50, and comprising at least one pendant group selected from COOR, CH(COOR)(COOR), CH(COOR)CN, CHO, OR, a heterocycle comprising from 5 t...
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WO/2021/190569A1 |
Disclosed are a low-migration hindered phenol antioxidant compound, a preparation method and a composition. During production, processing or use, polymers experience degradation due to factors such as light, oxygen, and heat. The oxidati...
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WO/2021/188403A1 |
A catalyst comprising noble metal particles and titanium-containing particles. The noble metal particles and titanium-containing particles are disposed on an outer surface of a support. At least 20% by weight of the total weight of noble...
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WO/2021/185304A1 |
A method for preparing a long aliphatic chain diacid derivative. The method comprises: (1) performing a cyclization reaction on long aliphatic chain diacid, the long aliphatic chain diacid having a structure as shown in formula (A); (2) ...
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WO/2021/181290A1 |
The present invention relates to a method for producing (1R,3R)-2,2-dimethyl-3-(Z)-prop-1-en-1-yl) cyclopropane carboxylic acid [I] and its salts and esters, shown as figure I from easily available(1R,3S)-3-(2,2-dihaloethenyl)-2,2-dimeth...
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WO/2021/182144A1 |
Provided is manufacturing technology for organic esters that is capable of manufacturing organic esters by an easy method with good production efficiency. Organic esters are manufactured by performing in parallel: a reaction step in whic...
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WO/2021/180992A1 |
The present invention relates to a method for producing oleocanthal, the oleocanthal obtained using said method, and a composition thereof for use as a food supplement or functional food.
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WO/2021/180002A1 |
Provided is a method for preparing an alkyl hydroxyl acid ester, the product and use thereof. The method has advantages of high yield, not producing waste water, gas, or solid, low cost, and is green and environment friendly.
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WO/2021/182530A1 |
A novel method for producing an azole derivative represented by general formula (I) comprises: a step for obtaining a bromohydrin derivative through reaction between an organometallic reagent generated from 1-bromo-2-chloro-4-(4-chloroph...
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WO/2021/174748A1 |
The present invention relates to a method for preparing a visible light catalyzed dichlorine addition product of an aliphatic olefin, comprising the following steps: using an aliphatic olefin as a substrate, using copper chloride having ...
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WO/2021/174487A1 |
Disclosed is a method for preparing a terephthalate. In particular, provided is a method for purifying a crude dibasic ester prepared by reacting terephthalic acid with an alcohol in the presence of an esterification catalyst. The method...
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WO/2021/172458A1 |
A method for separating water-containing crystals, the method including: a step for generating water-containing crystals from a mixed liquid that contains water, acetic acid, and methacrylic acid; and a step for separating the crystals, ...
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WO/2021/172898A1 |
The present invention relates to an apparatus for manufacturing propylene glycol methyl ether acetate (PGMEA). The present invention can provide a manufacturing apparatus comprising: a reaction distiller in which propylene glycol methyl ...
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WO/2021/172466A1 |
A catalyst for producing a carboxylic acid ester, said catalyst comprising catalytic metal particles and a carrier supporting the catalytic metal particles, wherein the hollow particle ratio is 40% or less.
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WO/2021/169241A1 |
A method for preparation and in-situ separation of oligomeric ricinoleate. By using ricinoleic acid as a raw material and using a protonic acid-type ionic liquid as a catalyst, ricinoleic acid molecules are subjected to a dehydration est...
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WO/2021/169199A1 |
Provided are an α-carbonyl alkenyl ester compound and a preparation method therefor, and said compound is further used to react with a primary or secondary amine to prepare an amide compound. Said two reactions are combined to develop a...
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WO/2021/168998A1 |
A method for preparing 2,5-tetrahydrofuran dimethanol fatty acid diester and an application thereof in a diesel additive. In the presence of a catalyst, an esterification reaction is carried out between 2,5-tetrahydrofuran dimethanol and...
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