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WO/2019/047848A1 |
The invention belongs to the field of quality analysis and control of traditional Chinese medicine, and provides a method for separating eighteen components in a traditional Chinese medicine composition, comprising: (1) preparing the tra...
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WO/2019/049838A1 |
To increase the activity of a solid acid catalyst used for the production of an aliphatic carboxylic acid ester and thereby achieve efficiency enhancement in the production of an aliphatic carboxylic acid ester. In a method for producing...
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WO/2019/048544A1 |
The present invention relates to the use of a compound of the general formula (I) wherein R1 is C1-C4-alkyl or -(C=0)-R3, R2 is hydrogen, C1-C4-alkyl or -(C=0)-R4, and R3 and R4, independently of one another, are selected from the group ...
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WO/2019/050830A1 |
A process for recovering methacrolein and methanol from methacrolein dimethyl acetal. The method comprises a step of contacting a mixture comprising methyl methacrylate and methacrolein dimethyl acetal with a strong acid ion exchange res...
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WO/2019/047493A1 |
The present invention relates to an ionic liquid, a cation of which contains a hexafluoroisopropylsulfonic acid group. The ionic liquid provided by the present invention introduces a hexafluoroisopropylsulfonic acid group into a cationic...
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WO/2019/050280A1 |
The present invention is a method for removing a primary alcohol in esterification, in comparison to the conventional methods, which comprises: a step of reacting, in an esterification reactor comprising a liquid exit line connected to a...
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WO/2019/050281A1 |
The present invention is a system for producing an ester composition, comprising an integrated reactor, a gas-liquid separation column, a refining unit, an alcohol storage tank, and a mixed alcohol separation column, and the purpose of t...
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WO/2019/043697A1 |
A slow-release composition comprising: first host material essentially comprising a mesoporous molecular sieve; guest material within the first host material, the guest material comprising at least one pheromone, wherein the pheromone is...
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WO/2019/045810A1 |
This disclosure relates to ester compounds formed from gamma-branched aliphatic alcohols, lubricating oil base stocks comprising such ester compounds, lubricating oil compositions comprising such ester compounds, and method of making suc...
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WO/2019/042807A1 |
The present invention relates to a process for producing optical molding materials on the basis of methyl methacrylate, wherein said MMA is produced by means of an optimized method and the molding materials exhibit in particular a very l...
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WO/2019/043060A1 |
The present invention relates to binaphthyl compounds of the formula (I), which are suitable as monomers for preparing polycarbonate resins having beneficial optical properties and which can be used for producing optical lenses: Formula ...
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WO/2019/027965A8 |
Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of ethanol to produce ethyl acetate and hydrogen. As both ethanol and ethyl acetate are volatile materials, they can be readily ...
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WO/2019/044914A1 |
The present invention addresses the problem of providing a drug solution purification method with which it is possible to obtain a drug solution exhibiting excellent impairment suppression performance. The present invention also addresse...
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WO/2019/041063A1 |
An isooctyl acrylate esterification reaction system device. The device comprises a light alkane removal tower, a heavy alkane removal tower, a condenser, a reboiler, and a preheater. A preheater is provided on a feeding pipe at one side ...
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WO/2019/027962A8 |
A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate ...
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WO/2019/041583A1 |
The present invention discloses a method for preparing p-hydroxycinnamate by using an ionic liquid to catalyze lignin. The method comprises the following steps: 1) preparation of a halogen metal salt ionic liquid: preparing the halogen m...
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WO/2019/039903A2 |
The present invention relates to a nonaqueous electrolyte for a lithium secondary battery and a lithium secondary battery and, specifically, to a nonaqueous electrolyte for a lithium secondary battery, which includes an additive that can...
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WO/2019/040109A1 |
Provided are processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate, or a salt, solvate, hydrate, enantiomer, mixture of enantiomers, or isotopologue thereof. Also provided are solid forms of various intermediates an...
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WO/2019/038764A1 |
The present invention relates to lyso-diacylglyceryltrimethylhomoserine (lyso- DGTS) or derivatives thereof for use in the treatment of atherosclerotic cardiovascular disease, and further provides particular such lyso-DGTS derivatives.
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WO/2019/039317A1 |
The present invention addresses the problem of providing a method for efficiently producing a dialkyl carbonate. The problem can be solved by a method for producing a dialkyl carbonate by reacting urea and at least one alkyl carbamate wi...
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WO/2019/035461A1 |
According to the present invention, a compound represented by general formula (A) is provided as a monomer which enables a cured product exhibiting high wet heat durability to be produced, and which does not readily crystallize in a cura...
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WO/2019/034577A1 |
The invention relates to a method for continuously producing an acrylic acid butyl ester H2C=CH-C(=O)OR, with R = n-butyl or isobutyl, wherein aqueous 3-hydroxypropionic acid is reacted under dehydrating and esterifying conditions in the...
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WO/2019/035715A1 |
The invention is directed to a method of electrochemically producing valeric acid. The method of the invention comprises - contacting a solution of levulinic acid with an anode and a cathode in an electrochemical cell; and - electrochemi...
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WO/2019/031182A1 |
Provided are: a calixarene compound represented by formula (1) [R1 represents a structural moiety (A) having -CH2OH, a structural moiety (B) having a carbon-carbon unsaturated bond, a structural moiety (C) having -CH2OH and a carbon-carb...
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WO/2019/029491A1 |
Disclosed in the present invention is a preparation method for octyl (R)-2-(4-chloro-2-methylphenoxy) propionate which can be used as a root retarder, comprising: using L-ethyl lactate as a raw material to perform sulfonation with p-tolu...
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WO/2019/030294A1 |
The present invention relates to a novel method for the preparation of photoaligning polymer materials comprising aryl acrylic acid ester groups, to photoalignment compositions obtained by this process, to the use of the composition as o...
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WO/2019/030147A1 |
The present invention relates to oil compositions that are enriched in polyunsaturated fatty acids; compositions containing the oil compositions; and methods of making and using the oil compositions. The oil is preferably a microbial or ...
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WO/2019/029808A1 |
Suggested are 1,2-alkanediols of formula (I) HOCH2-CH(OH)-R1 in which R1 stands for an alkyl radical having 3 to 10 carbon atoms, said diols being substantially free of lactones and/or peroxides.
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WO/2019/026889A1 |
Provided is a novel monofunctional (meth)acrylate that is liquid at normal temperature and has a high refractive index. The novel monofunctional (meth)acrylate is represented by formula (1). (In the formula, R1 indicates a hydrogen atom ...
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WO/2019/025540A1 |
The invention relates to 3-acyl-benzamides of formula (I) as herbicides. In formula (I) X, Y, Z and Rx represent radicals such as alkyl, cycloalkyl and halogen.
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WO/2019/027962A1 |
A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate ...
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WO/2019/026533A1 |
Provided are: a polar compound having high chemical stability, high ability for aligning liquid crystal molecules, and high solubility in a liquid crystal composition, and showing a high voltage retention rate when used in a liquid cryst...
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WO/2019/027959A1 |
Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of methanol to produce methyl formate and hydrogen. As both methanol and methyl formate are volatile materials, they can be read...
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WO/2019/026640A1 |
Provided are a catalyst precursor for producing a catalyst having a high yield of methacrylic acid, a catalyst, and a method for producing methacrylic acid and a methacrylic acid ester. A catalyst precursor including a heteropoly acid sa...
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WO/2019/027965A1 |
Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of ethanol to produce ethyl acetate and hydrogen. As both ethanol and ethyl acetate are volatile materials, they can be readily ...
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WO/2019/022886A1 |
A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a tubular reactor having at least four zones a mixture comprising methacrolein, methanol, oxygen and a base with a catalyst bed...
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WO/2019/022888A1 |
A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, where...
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WO/2019/022882A1 |
A method for preparing methyl methacrylate from methacrolein and methanol. The process comprises contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a nobl...
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WO/2019/022885A1 |
A method for preparing a heterogeneous catalyst. The method comprises steps of: (a) combining (i) a support, (ii) an aqueous solution of a noble metal compound and (iii) a C2-C18 thiol comprising at least one hydroxyl or carboxylic acid ...
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WO/2019/021993A1 |
A method for producing a bis-acyloxylated exomethylene compound represented by general formula (III), wherein a monoacyloxylated exomethylene compound represented by general formula (I), a carboxylic acid represented by general formula (...
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WO/2019/022889A1 |
A methode for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a nobl...
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WO/2019/022892A1 |
A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a nob...
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WO/2019/022887A1 |
A heterogeneous catalyst comprising a support and a noble metal. The catalyst has an average diameter of at least 200 microns and at least 90 wt% of the noble metal is in the outer 50% of catalyst volume.
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WO/2019/022883A1 |
A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal; where...
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WO/2019/022891A1 |
A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a catalyst bed of heterogeneous catalyst comprising a s...
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WO/2019/022890A1 |
A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a catalyst bed of heterogeneous catalyst comprising a s...
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WO/2019/023231A1 |
Compositions and methods for treating conditions associated with altered TCA cycle metabolism are provided.
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WO/2019/022884A1 |
A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, where...
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WO/2019/018683A1 |
In various embodiments a compound comprising the enantiomerically enriched S-isomer S-BHB-S-1,3-butanediol is provided along with methods of use thereof.
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WO/2019/016110A1 |
The invention discloses a method for preparation of 5-fluoro-2-methyl-3-nitrobenzoic acid and its methyl ester by conversion of 5-fluoro-2-methylbenzoic acid with fuming nitric acid and oleum and subsequent conversion with methanol.
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