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JP6942134B2 |
Aspects of the present invention relate to systems and processes for obtaining desired mercaptans or thiophenes from a feed stream containing a mixture of mercaptans, thiophenes and other components. In one aspect of the invention, a sys...
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JP2021524487A |
The present invention relates to any one of the following compounds of formula (Ie) or pharmaceutically acceptable salts thereof. Where Y1Represents an aryl group, X2-O- group, -NH- group, -S- group, -CO-NH- group, -NH-CO-NH- group, -NH-...
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JP6929930B2 |
An embodiment relates to an aromatic polythiol compound for optical materials, and the aromatic polythiol compound according to the embodiment contains a phenyl group and a large number of sulfur atoms in its polythiol structure so that ...
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JP6930064B2 |
Provided is a process for preparing polythiols by preparing a sulfhydration reaction medium, simultaneously carrying out radical sulfhydration reaction of at least one polyene and acid-catalyzed sulfhydration reaction of the polyene and ...
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JP2021123541A |
To provide a method for producing a polythiol composition which can improve nitrogen load of waste water, suppresses production of a nitrogen-containing compound that is an impurity with a simple method, and enables production of a polym...
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JP6926092B2 |
The present invention relates to a process for producing a catalyst which comprises at least one alkali metal and at least one transition metal in oxidised form, comprising the steps of a) providing a solution comprising at least one com...
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JP6911197B2 |
The present invention discloses a hypocrellin derivative substituted both in a peri-position and in a 2-position by an amino, and a preparation method and use thereof. A general structural formula of the derivative is as represented by f...
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JP6911422B2 |
To provide a novel (meth) acrylate for dilution having a low viscosity and a high refractive index, a homopolymer of which has high heat resistance.The present invention relates to a (meth) acrylate represented by the following formula (...
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JP6908529B2 |
A process for the preparation of methionine a-hydroxy analogue and derivatives thereof comprising contacting one or more sugars or derivatives thereof with a metallo-silicate composition in the presence of a compound comprising sulphur a...
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JP6905053B2 |
The present invention discloses a nicotinyl alcohol ether derivative, a preparation method therefor, and a pharmaceutical composition and uses thereof. Specifically, the invention relates to nicotinyl alcohol ether derivatives represente...
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JP6903067B2 |
The present invention relates to a method for preparing 3-methylthiopropionaldehyde by reacting methyl mercaptan with acrolein, in which deviations in the stoichiometry of methyl mercaptan to acrolein in the reaction to give 3-methylthio...
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JP6896079B2 |
The present invention relates to a method for preparing methionine or methionine salts. In particular, the invention describes the step of preparing 2-hydroxy-4-(methylthio)butyronitrile (MMP-CN) from 3-methylthiopropanal (MMP) and hydro...
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JP6895187B2 |
An object of the present invention is to provide a benzylamide compound or a salt thereof that controls a mite. The present invention provides a benzylamide compound represented by Formula (1): or a salt thereof, wherein R1 represents C1...
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JP2021095396A |
To provide a dithiapolyether diol with a low halogen content and high purity, and a method for producing the same, where the dithiapolyether diol is used in an SnAg plating solution to improve plating solution stability, plating film app...
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JP6893987B2 |
The present application relates to a method for preparing L-methionine crystals with an improved bulk density. As the L-methionine crystals prepared according to the method for preparing L-methionine crystals of the present application m...
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JP6885872B2 |
Disclosed are pulverulent compositions of a complex between an acid and a metal, having a high organosulfur compound content, and method for preparing same.
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JP6884499B2 |
An object of the present invention is to provide a method for producing a fluorinated organic compound with a high yield without using carbon tetrachloride in view of the fact that the production of a fluorinated organic compound with a ...
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JP2021513526A |
[Task] The present invention discloses a bioactive polysubstituted benzene compound and a method and application thereof. The compound of the present invention has good biological activity and activity for suppressing the growth of tumor...
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JP6873310B2 |
The present disclosure relates to a preparation method of a methionine-metal chelate, and the methionine-metal chelate, which is prepared by first reacting Ca(OH)2and methionine and adding metal nitrate, can be widely used as feeds and f...
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JP2021070630A |
To provide an industrially preferable fluoroalkylating agent, and use of the same.A compound represented by formula (1) and a fluoroalkylating agent are provided. In the formula, R1 represents a C1-C8 fluoroalkyl group; R2 represents an ...
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JP2021066722A |
To achieve stabilization of RSS so as to prevent decomposition of RSS and allow its analysis.The present disclosure provides a hydroxy compound for inhibiting the hydrolysis of polysulfide; and a method for inhibiting the hydrolysis of t...
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JP6866316B2 |
The present invention refers to substituted imidazolium sulfuranes, the use thereof for the transfer of a -CN group or an alkyne group.
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JP6856203B2 |
The present invention refers to a process for the preparation of an ±-functionalized ketone, an ±-functionalized ketone obtained by said process, a photopolymerizable composition comprising the ±-functionalized ketone and at least one...
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JP6851763B2 |
To inhibit the coloring of a polythiol compound.A method includes reacting an organic polyhalogen compound or a polyalcohol compound with a thiourea to generate isothiuronium salt, and hydrolyzing the obtained isothiuronium salt to produ...
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JP6851762B2 |
To provide a production method of a polythiol compound with suppressed coloring.A production method of a polythiol compound for an optical material is provided, which is a production method of polythiol including a step of reacting epich...
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JP6846507B2 |
A process for producing a polythiol compound, comprising: reacting a compound represented by following General Formula (3) with sodium sulfide to obtain a polyalcohol compound represented by following Formula (4), and reacting the obtain...
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JP6841758B2 |
wherein R11, R12, MG11, MG12 and CG1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium ac...
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JP6832918B2 |
The invention relates to a method for the stereoselective preparation of compounds of formula (IV)
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JP6831380B2 |
Herein, the substituents are radicals such as alkyl and substituted phenyl.
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JP6830617B2 |
Disclosed is a polyarylene sulfide resin having a main chain including a structural unit represented by general formula (1.1). No absorption peak derived from the S=O stretching vibration of a sulfonyl group is observed in the infrared a...
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JP2021503456A |
The present invention relates to novel types of compounds that have a stabilizing effect and, in particular, provide oxidative thermal decomposition or damage to organic materials and / or stabilization with respect to decomposition or d...
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JP6826012B2 |
An object of the invention is to provide a simple method for producing methionine and/or 2-hydroxy-4-(methylthio)butanoic acid at a high yield using 3-(methylthio)propionaldehyde as a raw material. An oxide catalyst containing cerium, 3-...
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JP6826225B2 |
A continuous flow process for the preparation of one or more esters of lactic acid and 2-hydroxy-3-butenoic acid or ±-hydroxy methionine analogues from a sugar in the presence of a solid Lewis acid catalyst and a solvent comprising an o...
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JP6811617B2 |
To provide a compound having a novel structure and a liquid repellent property, a production method thereof, a surface treatment agent containing the compound and an article having a coating of the compound.A compound represented by the ...
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JP6797855B2 |
Provided is a method for producing a polythiol compound, the method including reacting a halide represented by Formula (1) with an alkali metal compound selected from the group consisting of an alkali metal sulfide and an alkali metal hy...
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JP6797856B2 |
Provided is a method for producing a polythiol compound, the method including reacting a polyol compound with thiourea in which a content of ammonium thiocyanate is 0.05% by mass or less to obtain an isothiuronium salt.
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JP6796104B2 |
Disclosed is to prevent generation of byproducts or a deterioration in the physical properties of a polythiol composition that may be caused by active oxygen during storage thereof by way of controlling the content of active oxygen in th...
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JP6794246B2 |
To provide a production method that is suitable for industrial production, and makes it possible to obtain dihydrolipoic acid with high purity and high optical purity or a salt thereof.A method for producing dihydrolipoic acid or a salt ...
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JP6789979B2 |
A method of producing an organopolysulfide or salt thereof is provided which includes a step of mixing an organomonosulfide or salt thereof and elemental sulfur, wherein the mixing is carried out at a temperature not greater than 95 C an...
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JP6789629B2 |
The present invention relates to a process for the preparation of alkyl mercaptans by reacting an aliphatic alcohol with hydrogen sulfide in the presence of a heterogeneous catalyst at varying temperatures.
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JP2020531484A |
The cyclopropaneation method involves reacting an alcohol, ester, or aldehyde with a sulfone in an organic solvent containing a base that provides a countercation to form cyclopropane, and isolating cyclopropane. Including. When using al...
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JP6774901B2 |
To provide a thiol compound having high heat resistance and excellent handleability and a method for producing the same, and a curable composition containing the thiol compound.A thiol compound has a 9,9-bisarylfluorene skeleton, is repr...
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JP6778212B2 |
The invention concerns a continuous process for manufacturing methionine by alkaline hydrolysis of methionine hydantoin in aqueous phase, removing NH3 and CO2 of the hydrolysis medium, and neutralizing the obtained methioninate salt, acc...
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JP6764467B2 |
A high-purity polyfunctional thiol compound is obtained by a method for producing a polyfunctional thiol compound, the method including a step for reacting a compound represented by general formula (11) and a compound represented by HN(R...
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JP6764158B2 |
To provide a method for producing a carbonyl compound, allowing for improvement of ease of production and furthermore allowing for reduction of production cost, by positively utilizing inexpensive iodine.A carbonyl compound is produced b...
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JP2020152692A |
To provide a method of producing an organic mercapto compound using dithiobiuret as a thiating agent.A method of producing an organic mercapto compound represented by general formula (4), Q3-(SH)n, comprises reacting an alcohol compound ...
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JP2020152693A |
To provide a method of producing an organic mercapto compound using guanylthiourea as a thiating agent.A method of producing an organic mercapto compound represented by general formula (4), Q3-(SH)n, comprises reacting an alcohol compoun...
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JP6760598B2 |
To provide a method for producing a polythiol compound of high purity.A method for producing a polythiol compound for optical materials includes reacting an organic polyhalogen compound or a polyalcohol compound with a thiourea to genera...
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JP6757468B2 |
An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carba...
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JP6740192B2 |
Means for achieving the object: A method for producing a fluorinated organic compound comprising step A of fluorinating an organic compound by bringing the organic compound into contact with (1) IF5-pyridine-HF and (2) at least one addit...
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