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WO/2022/022939A1 |
The present invention relates to a novel process for preparing methacrylates, such as methacrylic acid and/or alkyl methacrylates, especially MMA. The present invention is based on prolonging of the catalyst service life and an increase ...
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WO/2022/023283A1 |
The present invention relates to the field of organic synthesis and more specifically it concerns a process for preparing compound of formula (I) catalyzed by a nickel complex. The compound of formula (II) is also part of the invention.
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WO/2022/017755A1 |
The present invention relates to a new method for producing suitable improved carrier materials as a base material for catalysts for carrying out a direct oxidative esterification. In general, the catalyst is used to convert aldehydes wi...
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WO/2022/019336A1 |
The purpose of the present invention is to provide: a novel deuterated labeling compound; and a production method therefor. The present invention provides: a deuterated labeling compound in which at least position β of a fatty acid is d...
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WO/2022/020132A1 |
The invention provides methods of manufacturing blends of bis(2-ethylhexyl) terephthalate and methyl 2-ethylhexyl terephthalate. Bis(2-ethylhexyl) terephthalate and methyl 2-ethylhexyl terephthalate blends are useful as plasticizers in m...
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WO/2022/012765A1 |
The invention relates to a process for preparing carboxylic acid esters of 3-hydroxybutanoates (i.e. carboxylic esters of 4-oxo-2-butanols), in particular carboxylic acid esters of 4-oxo-4-(C1-C5-alkoxy)-2-butanol or of 4-oxo-4-(hydroxy-...
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WO/2022/011865A1 |
Provided are a reaction system and method for preparing ethanol using syngas. The reaction system comprises: a methanol preparation unit, a reaction unit for preparing dimethyl ether from methanol and a reaction unit for preparing ethano...
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WO/2022/012766A1 |
The invention relates to a process for preparing oxobutanol esters of polymeric carboxylic acids, in particular 4-oxo-4-(C1-C5-alkoxy)-2-butanol esters or 4-oxo-4-(hydroxy-C3-C5-alkoxy)-2-butanol esters of polymeric carboxylic acids. The...
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WO/2022/011870A1 |
Provided are a reaction system and method for coal-to-ethanol. The reaction system comprises a methanol-to-dimethyl ether reaction unit and a dimethyl ether-to-ethanol reaction unit which are connected in sequence, wherein the methanol i...
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WO/2022/015680A1 |
A catalyst comprising a noble metal disposed on a support. The noble metal is present in an amount ranging from 0.1 wt% to 10 wt% relative to the total weight of the catalyst. The support comprises at least 50 wt% silicon carbide relativ...
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WO/2022/012005A1 |
The present invention provides a catalyst modified with a thiol ligand, a preparation method therefor and use thereof. The method comprises: introducing a hydrogen-containing gas, and modifying Pd4S or Pd4S/X by a thiol ligand under a ga...
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WO/2022/012767A1 |
The invention relates to a method for producing polyglycerol esters of polycarboxylic acids esterified with oxobutanol, in particular mono- or polyvalent polyglycerol esters of polycarboxylic acids esterified with 4-oxo-4-(C1-C5-alkoxy)-...
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WO/2022/013440A1 |
The present invention relates to a method for preparing a 2-bromoglutaric acid diester of formula (I), comprising forming a 2-hydroxyglutaric acid diester of formula (II) by reacting butyrolactone acid of formula (BA) with alcohol of for...
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WO/2022/008856A1 |
The invention relates to a method for preparation of a triglyceride, comprising a step of bringing glycerin into contact with heptanoic acid, the heptanoic acid being in excess relative to the glycerin and the method being carried out in...
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WO/2022/009911A1 |
The present invention addresses the problem of providing a novel method for producing a 1,3-benzodioxole derivative. The method comprises a novel chlorination reaction of a benzene ring which gives a good yield and a small amount of impu...
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WO/2022/000160A1 |
A method for efficient catalytic oxidation of alkanes. An alkane is used as a raw material, a copper salt-metal salt is used as a catalytic system in a trifluoroacetic acid and/or trifluoroacetic anhydride system, and a reaction is carri...
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WO/2022/003990A1 |
[Problem] To provide a method for producing high-purity bis(2-hydroxyethyl) terephthalate (BHET), by which high-purity BHET can be easily produced from colored polyester waste. [Solution] A method for producing high-purity BHET according...
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WO/2022/004509A1 |
Provided is a method for producing a very safe substance which can be used as a catalyst which exhibits excellent activity. The present invention provides a method for producing a composite of a titanium compound [B1] and an ammonium h...
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WO/2022/002287A1 |
The present invention relates to a combustion additive comprising iron oxide nanoparticles; a fuel based on natural plant and animal fats and oils; and a method for producing same. The production method allows up to 100% of the raw mater...
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WO/2022/004812A1 |
Disclosed is a method for producing a perylene dimer compound having imide groups, the method including a step in which a perylene dimer compound represented by formula 3 is reacted with an amine compound represented by formula 30 to yie...
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WO/2022/004359A1 |
[Problem] To provide a method for producing bis-(2-hydroxyethyl)terephthalate (BHET), the method being capable of simply producing a BHET with high purity from a colored polyester waste. [Solution] A method for producing a BHET according...
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WO/2022/005889A1 |
Ion chromatography may be used for measuring the concentration of metal ions in various streams of a vinyl acetate production process. For example, a method may comprise: reacting ethylene, oxygen, and acetic acid in the presence of a ca...
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WO/2021/259060A1 |
Provided are a ketorolaco derivative as shown in formula (I), a pharmaceutical composition and a preparation method therefor and use thereof. As a medicine, the ketorolaco derivative has a better half-life and stability, has good pharmac...
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WO/2021/255052A1 |
An in-situ method for making a conjugated diene from an allyl alcohol comprising the conversion of the allyl alcohol to an allyl carbonate, allyl ester or allyl formate with concomitant or subsequent conversion of the allyl carbonate, al...
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WO/2021/257717A1 |
Described herein are methods for the preparation of bio-based acrylic acid from bio-based methyl lactate. Some methods involve the use of an azeotropic distillate of methyl acrylate and methanol. The methods enhance bio-based acrylic aci...
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WO/2021/253478A1 |
Disclosed is a photosensitive photoresist resin monomer containing a polycyclic β-ketone structure, which relates to the field of photoresist resin monomers. Structural formula (I) thereof is shown as follows: R1 is methyl or H, R2 and ...
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WO/2021/250558A1 |
The invention provides an improved process for the preparation of fluoxastrobin and intermediates thereof. The present invention provides a process for the preparation of fluoaxastrobin, 4,6-dichloro-5-fluoro-pyrimidine and diethyl 2-chl...
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WO/2021/252554A1 |
The method is described herein for forming a polymer, comprising providing a first monomer comprising a polyol having at least two hydroxyl groups; providing a second monomer comprising a poly alkyl ester of a polycarboxylic acid having ...
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WO/2021/251977A1 |
A method or process for solubilizing a resveratrol glycolate compound by heating the resveratrol glycolate and mixing the resveratrol glycolate with one or more glycols is disclosed.
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WO/2021/246809A1 |
The present invention relates to a reaction control method capable of predicting a conversion rate of a reaction from a flow rate of feed input into a reactor and product water generated in the reactor, and thereby easily controlling the...
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WO/2021/246862A1 |
Provided are personal care compositions comprising ester polyol esters, ester polyol esters, manufacturing methods thereof, and the use of ester polyol esters in personal care compositions.
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WO/2021/246355A1 |
A method for producing an easily polymerizable compound, said method comprising a step for purifying an easily polymerizable compound-containing liquid by introducing the easily polymerizable compound-containing liquid into a vaporizatio...
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WO/2021/245504A1 |
The present invention relates to a process for the preparation of α-[3-[[2-(3,4-dimethoxyphenyl)ethyl]methylamino]propyl]-3,4
-dimethoxy-α-(1-methylethyl), monohydrochloride (verapamil hydrochloride, a compound of formula I), the proce...
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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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