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WO/2022/270533A1 |
The purpose of the present invention is to provide a method for manufacturing a sulfur-containing polymer, such as polyarylene sulfide. In the method, by-products of the polymerization reaction are scarce and the impact on optical proper...
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WO/2022/269182A1 |
The present invention relates to a method for preparing at least one mercaptan, which comprises the following steps: i) treating a catalyst for sulfhydrolysis of at least one dialkyl sulfide, preferably a zeolite, said treatment comprisi...
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WO/2022/269183A1 |
The present invention relates to a method for preparing at least one mercaptan, which comprises the following steps: A) introducing H2S and at least one alcohol into a first reactor; B) reacting the H2S and said at least one alcohol in o...
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WO/2022/246929A1 |
The present invention relates to the technical field of drug synthesis, and provides a preparation method for an ABT-737 key intermediate and a preparation method for ABT-737. A compound having a structure as represented by formula I is ...
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WO/2022/243642A1 |
The invention relates to a method for alkaline hydrolysis of 5-(2-methylmercaptoethyl)hydantoin of formula (1) [Chem 1] or the selenium equivalent thereof, 5-(2-methylselenoethyl)hydantoin, to a methionine salt or a selenomethionine salt...
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WO/2022/238650A1 |
The invention relates to a method for the co-production of alkyl mercaptan and dialkyl disulfide, comprising the following successive steps:a) reacting a C1-C4 alcohol in the presence of hydrogen sulfide (H2S) to form a stream (M) compri...
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WO/2022/238651A1 |
The invention relates to a process for the co-production of methyl mercaptan and dimethyl disulfide, comprising the following successive steps: a) reacting at least one carbon oxide in the presence of hydrogen sulfide (H2S) and hydrogen ...
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WO/2022/237644A1 |
The present invention provides an oxime ester photoinitiator of a chalcone structure, a preparation method therefor and an application thereof. The initiator has the following structure: Ar1, wherein Ar2 is a substituent containing an ar...
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WO/2022/229487A1 |
The present invention relates to a method for obtaining products with a high added value, such as acetals, dithioacetals and aminals, from dichloromethane by means of the reaction thereof with an alkaline salt or compound in the presence...
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WO/2022/223920A1 |
The present invention relates to a process for the preparation of at least one mercapto acid or ester from at least one starting polyhydroxyalkanoate, comprising a step of reacting the starting polyhydroxyalkanoate with an alkaline solut...
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WO/2022/214045A1 |
The present application provides a method for preparing a deuterated chemical by means of a deuteration reaction of a carbon-hydrogen bond with a deuterium gas under the catalysis of an alkali, wherein in the presence of a catalyst, a de...
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WO/2022/202888A1 |
The purpose of the present disclosure is to provide a method for producing organic fluorine compounds that enables the thorough removal of sulfur-containing substances, or to provide an organic fluorine compound-containing composition th...
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WO/2022/196819A1 |
The present invention establishes a non-conventional, novel method for producing D-luciferin and a D-luciferin derivative by a multi-stage production process without using expensive 2-cyano-6-hydroxybenzothiazole. The above is achieved...
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WO/2022/190486A1 |
The present invention provides, as a novel compound that can be utilized for efficient synthesis or the like of a polypeptide comprising various amino acids, a silane-containing condensed cyclic dipeptide compound represented by formula ...
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WO/2022/185018A1 |
The invention relates to a method for preparing 2-hydroxy-4-methylthiobutyronitrile (HMTBN) or the selenium equivalent thereof (HMSeBN) from cyanhydric acid and 3-methylthiopropanal (MTP) or the corresponding selenium aldehyde (MSeP), co...
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WO/2022/179448A1 |
The present invention belongs to the technical field of organic compound synthesis, and relates to a method for synthesizing (trifluoromethylthio) silver(I). The method for synthesizing (trifluoromethylthio) silver(I) (CAS No.: 811-68-7)...
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WO/2022/168650A1 |
Provided are a novel homocysteine derivative and a method for producing the same, a composition comprising the compound, and an anti-inflammatory agent comprising the compound and/or the composition. A compound represented by formula 1.
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WO/2022/169363A1 |
The invention provides a method for the extraction of an organic acid (10) from a mixture (110), the method comprising: an extraction stage comprising providing the mixture (110) to a sorbent (150); an elution stage comprising passing an...
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WO/2022/166837A1 |
Disclosed are an aryl sulfide, a synthesis method therefor, and an application thereof. The aryl sulfide is a compound of the structure represented by formula I or an agriculturally acceptable salt thereof. The aryl sulfide and the agric...
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WO/2022/164840A1 |
A catalyst composition for converting an alcohol to olefins, the catalyst composition comprising the following components: (a) a support (e.g., particles) comprising silicon and oxygen; (b) at least one of copper and silver residing on a...
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WO/2022/156005A1 |
The present invention relates to the field of fine chemical engineering, and in particular, to a method for preparing an α-acyloxy-thioether derivative. The technical key points are as follows: compound A, carboxylic acid B, a sodium sa...
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WO/2022/144292A1 |
The invention relates in particular to a process for the preparation of DL/LD-methionine diketopiperazine (I) characterized in that a DD/LL-methionylmethionine-containing aqueous solution or suspension, which has a pH of 3 to 7, measured...
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WO/2022/129802A1 |
The present invention relates to a method for producing methyl mercaptan, comprising the following steps: A) methanol is reacted with hydrogen sulfide to form a stream (M), preferably in the gas state, comprising methyl mercaptan, unreac...
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WO/2022/129801A1 |
The present invention relates to a method for drying methyl mercaptan, in particular by azeotropic distillation, comprising the following steps: 1) a stream (A) comprising methyl mercaptan and water is introduced into a distillation colu...
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WO/2022/117951A1 |
The present invention relates to a method for synthesising functionalised mercaptan, comprising the reaction between a compound of formula R2-X-C*H(NR1R7)-(CH2)n-G (II) and H2S in the presence of at least one enzyme chosen from among the...
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WO/2022/116596A1 |
The invention relates to a concrete micro-foaming agent. The concrete micro-foaming agent contains the following components in parts by weight: 100-150 parts of a sulfonating agent, 0-100 parts of an alkaline agent, 100-200 parts of a un...
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WO/2022/107830A1 |
The present invention provides a method for producing a thiourethane resin starting material, the method comprising a reaction step for bringing a composition X containing a thiourethane resin and impurities into contact with an active h...
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WO/2022/101632A1 |
The present disclosure describes, in part, a polymer, for example a thermoplastic polyurethane elastomer, comprising one or more subunits comprising (i) at least one dianhydrohexitole moiety (ii) at least one urethane moiety and (ill) a ...
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WO/2022/084633A1 |
The invention relates to a preparation of a compound of formula (I), [Chem 1] CH3XCH2CH2C(NH2)COOH (I) wherein X represents S or Se, by catalytic conversion of a compound of formula (II) [Chem 2] CH3XCH2CH2C(Y)CN (II) wherein X represent...
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WO/2022/084632A1 |
The invention relates to a method for preparing 2-hydroxy-4-methylthiobutyric acid (HMTBA) or 2-hydroxy-4-methylselenobutanoic acid (HMSeBA) by catalytic conversion of 2-hydroxy-4-methylthiobutyronitrile or of 2-hydroxy-4-methylselenobut...
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WO/2022/080409A1 |
The present disclosure pertains to: an ester compound that is a transesterification reactant between a polyol and a dicarboxylic acid ester having a disulfide bond and that has, in a molecule chain, a disulfide bond and has, at a termina...
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WO/2022/078940A1 |
The present invention relates to D,L-methionine, comprising based on the total weight of the D,L- methionine from 15 to less than 50 wt.-% of the D,L-methionine with a particle size from more than 0 to less 150 micrometer, from 50 to les...
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WO/2022/076420A1 |
Methods for synthesizing a mercaptan compound include the steps of contacting a nickel-molybdenum catalyst with H2S at a sulfiding temperature of less than or equal to 235°C to form a supported sulfur-containing catalyst, and then conta...
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WO/2022/071363A1 |
Provided is a new production method for a fluorinated organic compound (1) which involves a step A in which, in a liquid composition containing an organic solvent, IF5 is used to fluorinate a hydrogen atom-containing organic compound (2)...
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WO/2022/065802A1 |
A polythiol composition according to exemplified embodiments comprises a first polythiol compound, and a second polythiol compound having a larger molecular weight than the first polythiol compound and having a number of functional group...
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WO/2022/056700A1 |
A photosensitive resin and a photoresist composition using same. The photosensitive resin comprises resin-type photosensitive anions and sulfonium salt cations, wherein in the structural formula of the resin-type photosensitive anion, R1...
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WO/2022/051804A1 |
Compounds of Formula (A) and methods for use as agricultural chemicals, including herbicides. Formula (A)
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WO/2022/050662A1 |
A polythiol composition according to exemplary examples comprises a tetrafunctional polythiol compound, and a sub-polythiol compound including a compound represented by C13H28S9 and a compound represented by C15H32S10. The proportion of ...
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WO/2022/041739A1 |
The present invention belongs to the technical field of quaternary ammonium salt compounds, and specifically relates to a degradable quaternary ammonium salt compound. The structural general formula of the quaternary ammonium salt compou...
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WO/2022/034514A1 |
The present invention provides a process for the preparation of clethodim by reacting 5-[2-(ethylthio)propyl]-2-(1-oxopropyl)-1,3-cyclohexanedione
with O-(3-chloro-2-propen-1-yl)hydroxylamine in the absence of a solvent. A continuous fl...
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WO/2022/018352A1 |
The present invention relates to a method for synthesising functionalised mercaptans, essentially in the absence of oxygen, as well as a composition particularly for implementing said method. The functionalised mercaptans have the follow...
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WO/2022/012036A1 |
The present invention relates to the technical field of fine chemical industry. Disclosed is a method for preparing asymmetric disulfide. The specific steps comprise: using 3-methylthio-N-phenylpropionamide and diphenyl disulfide as raw ...
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WO/2022/008505A1 |
The present invention relates to a process for preparing 3-methylthiopropionaldehyde, comprising the steps of a) providing a liquid stream (1) comprising methyl mercaptan and/or the hemi thioacetal formed from 3-methylthiopropionaldehyde...
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WO/2021/252273A1 |
Continuous photochemical production of high purity linear mercaptan and sulfide-containing compositions.
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WO/2020/249120A9 |
Disclosed is the use of aminothiol compounds as a cerebral nerve or heart protective agent, in particular in the prevention and/or treatment of cardiovascular and cerebrovascular diseases, such as heart and cerebral ischemia/reperfusion ...
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WO/2021/246349A1 |
This method for producing a thiol compound comprises a light irradiation step in which a thiol compound having a color or a composition including said thiol compound is irradiated with light. In the light irradiation step, the compositio...
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WO/2021/219375A1 |
An effective process of making Ν,Ν'-diacetyl-L-Cystine ("NDAC"), which process is fast, green, does not require labor-intensive isolation or purification of the product, by yielding products in desired ratio, and has improved yield and...
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WO/2021/221059A1 |
The present invention provides a method for producing a monosulfoxide derivative.
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WO/2021/219377A1 |
A process of making Ν,Ν'-diacetyl-L-Cystine disodium salt, the process comprising: (i) Mixing hydroxy alkane (between 0.5-100L, preferably between 0.5-10L, more preferably between 1-3L, most preferably 1 L per mol of cystine) with a so...
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WO/2021/214243A1 |
The present invention relates to a method for preparing a compound T having a thioether group from a compound D having a disulfide group in the presence of a carbene.
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