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Matches 501 - 550 out of 78,725

Document Document Title
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...  
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....  
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...  
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...  
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.  
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.  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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 ...  
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...  
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...  
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...  
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) ...  
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...  
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...  
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.  
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.  
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...  
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 ...  
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...  
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, ...  
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 ...  
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.  
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...  
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...  
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...  
WO/2021/170449A1
The present invention relates to a new process of production of menaquinone 4, which is also known as vitamin K2.  
WO/2021/168072A1
A method for preparing an alkyl 2-benzoylbenzoate comprising reacting a dialkyl phthalate with a Grignard reagent in the presence of an oxygenated solvent. The Grignard reagent may be selected from phenyl magnesium bromide, phenyl magnes...  
WO/2021/167008A1
This method for producing an aromatic astatine compound comprises reacting aromatic iodonium ylide with astatine to produce an aromatic astatine compound.  
WO/2021/161101A1
Disclosed is a method for preparing compound Formula S-1, comprising resolving compound Formula rac-2 with a compound of Formula 3 wherein R1 · R4, m and n are as defined in the disclosure.  
WO/2021/161100A1
Disclosed is a method for preparing compound S-1 (S-1) comprising resolving compound rac-2 (rac-2) with a compound of Formula 3 wherein R1, R4, m and n are as defined in the disclosure.  
WO/2021/161099A1
Disclosed are methods for preparing compound S-1 (S-1) from (R)-2-bromobutanoic acid prepared by treating (R)-2-aminobutanoic acid with an alkali metal nitrite compound and hydrobromic acid.  
WO/2021/160864A1
The present invention pertains to a composition comprising at least one compound of formula (I) and to the use of said composition for recovering value minerals from ore and other feedstocks by flotation.  
WO/2021/162284A1
The present invention relates to an ester-based compound production method which has a simple post-treatment process, thus can reduce energy consumption, and enables production of a high-purity product.  
WO/2021/156578A1
The invention relates to anti-UV molecules of natural origin, and to the process for the synthesis thereof and also the process for the synthesis of analogues thereof. More particularly, it relates to a two-step process for the synthesis...  
WO/2021/156406A1
The present invention relates to a process for preparing 8-hydroxy-9,10-dioxo-anthracene-1- carboxylic acid. It also relates to a method for preparing an anthraquinone derivative comprising a step for preparing 8-hydroxy-9,10-dioxo-anthr...  
WO/2021/158481A1
The present invention includes substituted 1,1'-biphenyl compounds, analogues thereof, and compositions comprising the same. In one aspect, the compounds contemplated in the invention can be used to treat, ameliorate, or prevent hepatiti...  

Matches 501 - 550 out of 78,725