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WO/2022/166848A1 |
Provided is a method for synthesizing (1R,2R)-AMPP and derivatives thereof by using an enzyme cascade reaction, comprising the following steps: step 1, using a benzaldehyde derivative as a substrate and an E. coli transketolase mutant as...
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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/2022/117604A1 |
The present invention relates to a method, a diagnostic system, a dopant and the use thereof for the enhancement of detection of an analyte of interest by Cross Spray ESI mass spectrometry. The dopant is preferably a sulfone. The method ...
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WO/2022/096682A1 |
The invention relates to a method of preparing arylvinylsulphones. The method comprises forming o a first reaction mixture comprising a catalyst complex of Cu(I)halide and a ligand, wherein the ligand is selected from mono-, bi- or polyd...
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WO/2022/092655A1 |
Disclosed is a method for preparing a thiomethylphenol derivative, the method comprising steps of: (a) performing a primary reaction of a phenol derivative represented by chemical formula 2, a mercaptan derivative represented by R4SH, an...
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WO/2022/083082A1 |
The present invention provides a method for preparing bicalutamide intermediate 2, comprising the following steps: dissolving N-[4-cyano-3-(trifluoromethyl)phenyl]-2-methacrylamide in a lower fatty acid ester solvent, successively adding...
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WO/2022/055221A1 |
A polythiol composition according to exemplary embodiments includes at least two different polythiol-based compounds, and a peak area (%) of polythiol compound represented by C8H18S6 measured through a high performance liquid chromatogra...
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WO/2022/024094A1 |
The present disclosure provides a new and improved process for preparation of intermediate compounds and synthesis of mesotrione therefrom. The present disclosure provides an economical, efficient and eco-friendly process for preparation...
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WO/2022/012482A1 |
The present invention belongs to the field of organic synthesis, and particularly relates to a method for preparing a mesotrione herbicide. 4-methanesulfonyl-2-nitrobenzoic acid is used as a raw material, and is subjected to a chloroform...
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WO/2021/257922A1 |
The present disclosure pertains to new methods of performing a hydrodealkenylation of monounsaturated alcohols, thiols, and derivatives thereof, such as terpenes and derivatives, comprising ozonolysis and quenching using a sulfinic acid ...
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WO/2021/237371A1 |
The present application describes process for preparing an ortho-allylated hydroxy aryl compounds such as compounds of Formula (I) by reacting an allylic alcohol with a hydroxy aryl compound in the presence of aluminum compound selected ...
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WO/2021/223301A1 |
Provided is a preparation method for water-soluble Florfenicol amino acid ester salt, the method comprising the steps of: using Florfenicol and N-Cbz-amino acid as starting raw materials, and subjecting same to acyl chlorination, esterif...
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WO/2021/187215A1 |
In the present invention, a diphenylsulfone compound containing 4,4'-dihydroxydiphenylsulfone is produced at a good yield in a short time at a relatively low temperature. A diphenylsulfone compound represented by formula (2) is produced ...
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WO/2021/184649A1 |
The present invention relates to the technical field of chemosynthesis, and provides a method for preparing a florfenicol intermediate. The method comprises: under catalysis of a chiral catalyst, enabling p-methylthiobenzaldehyde to reac...
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WO/2021/181029A1 |
The present invention relates to a chemoenzymatic process for coproducing a disulfide and a sulfoxide or a sulfone from a composition M comprising: 1) a sulfide, 2) optionally an oxidizing agent, 3) an organic compound bearing at least o...
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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 ...
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WO/2021/154143A1 |
The invention concerns a method for treatment of a stream of mixed compounds (4a) obtained from a process (3) comprising decomposition and/or conversion of a wood or pulp material, the method comprising: feeding the stream (4a-4e) throug...
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WO/2021/114424A1 |
Provided is a method for preparing a trifluorohydrocarbyl sulfone compound. The preparation method comprises continuously sending a trifluorohydrocarbyl thioether compound, sodium tungstate dihydrate and a hydrogen peroxide solution to a...
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WO/2021/107872A1 |
The present invention relates, in general terms, to methods of catalysing a reaction, including the steps of contacting a chemical entity comprising a sulphide moiety with a composite and an oxidant. The composite acts as a heterogeneous...
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WO/2021/104503A1 |
Disclosed is a method for preparing β-carbonyl sulfone. The method comprises: by taking an α-carbonyl diazo compound and sodium arylsulfinate as reaction substrates, cheap silver nitrate as an optimal catalyst, 1,10-phenanthroline as a...
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WO/2021/079617A1 |
The present invention provides: an amidite compound capable of improving the yield and purity of a polyoligonucleotide; a glycoside compound serving as an intermediate of the amidite compound; and a production method for a polynucleotide...
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WO/2021/071372A1 |
The invention relates to an improved process of vitamin K2 derivatives preparation via the alkylation of the menadione-cyclopentadiene adduct.
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WO/2021/060517A1 |
The present invention provides a novel method for producing a derivative of an organic substance that contains one or more groups selected from the group consisting of a sulfanyl group, a selanyl group and a sulfino group. A method for p...
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WO/2021/037683A1 |
The invention relates to a process for purifying 4,4'-dichlorodiphenyl sulfone comprising: (a) providing a suspension comprising particulate 4,4'-dichlorodiphenyl sulfone in carboxylic acid, (b) carrying out a solid-liquid separation of ...
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WO/2021/037677A1 |
The invention relates to a process for producing 4,4'-dichlorodiphenyl sulfone comprising reacting a solution comprising 4,4'-dichlorodiphenyl sulfoxide and at least one linear C6-C10 carboxylic acid as solvent with an oxidizing agent to...
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WO/2021/037672A1 |
The invention relates to a process for producing 4,4'-dichlorodiphenyl sulfone, comprising: (a) reacting 4,4'-dichlorodiphenyl sulfoxide and an oxidizing agent in at least one carboxylic acid as solvent to obtain a reaction mixture compr...
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WO/2021/037675A1 |
The invention relates to a process for producing 4,4'-dichlorodiphenyl sulfone, comprising: (I) reacting thionyl chloride, chlorobenzene and aluminum chloride forming an intermediate reaction product and hydrogen chloride; (II) mixing aq...
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WO/2021/037682A1 |
The invention relates to a process for purifying crude 4,4'-dichlorodiphenyl sulfone comprising: (a) dissolving the crude 4,4'-dichlorodiphenyl sulfone which may contain water in an organic solvent in which 4,4'-dichlorodiphenyl sulfone ...
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WO/2021/037680A1 |
The invention relates to a process for obtaining 4,4'-dichlorodiphenyl sulfone from an organic mixture comprising 4,4'-dichlorodiphenyl sulfone and a linear C6 to C10 carboxylic acid as organic solvent, comprising: (a) cooling the organi...
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WO/2021/036256A1 |
The present application is suitable for use in the technical field of drug synthesis, and provides a method for synthesizing an HIV protease inhibitor intermediate compounds. The method comprises subjecting compound 1a to an asymmetric t...
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WO/2021/012014A1 |
The present invention relates to methods for preparing a variety of difluorohaloallylamine derivatives. The present invention also relates to novel difluorohaloallylamine derivatives that are capable of inhibiting certain amine oxidase e...
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WO/2021/007840A1 |
Provided is a carbamate-substituted styryl sulfone compound, a preparation method, and an application thereof. The carbamate-substituted styryl sulfone compound has a structure represented by general formula I. The carbamate-substituted ...
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WO/2020/257573A1 |
The invention provides crystalline salt and cocrystal forms of bempedoic acid. Also provided are compositions and pharmaceutical materials including a crystalline salt or cocrystal form of bempedoic acid as well as methods of treating va...
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WO/2020/257571A1 |
The invention provides methods of preparing 8-hy droxy-2,2, 14,14- tetramethylpentadecanedioic acid and methods of making a pharmaceutical material comprising a purified amount of 8-hy droxy-2,2, 14, 14-tetramethylpentadecanedioic acid. ...
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WO/2020/251012A1 |
Provided is are an agricultural and horticultural agent, in particular a compound which is useful as the active ingredient of an agricultural and horticultural pest control agent, a mite control agent, a nematode control agent or a disea...
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WO/2020/238779A1 |
The present invention relates to a method for synthesizing florfenicol. The method comprises the steps of: using sulfuryl fluoride as a fluorinating reagent to fluorinate compound I to obtain a product, and then performing a ring opening...
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WO/2020/207929A1 |
The invention relates to a process for working up a composition comprising solid 4,4'- dichlorodiphenyl sulfoxide and a solvent, wherein the amount of solvent in the composition is in the range between 5 and 25 wt% based on the total mas...
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WO/2020/186632A1 |
The present application relates to a benzidine compound and an application thereof, the benzidine compound having the structure as shown in formula I below. Further provided in the present application are a pharmaceutically acceptable sa...
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WO/2020/187795A1 |
The invention relates to an anionic surfactant of general formula (I) or general formula (II) or mixtures thereof, in which R represents hydrogen or a linear or branched alkyl, alkenyl, alkyl-aryl or alkenyl-aryl group with 5 to 25 C ato...
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WO/2020/161225A1 |
The invention relates to a process for purifying 4,4'-dichlorodiphenyl sulfoxide comprising: (a) providing a suspension comprising particulate 4,4'-dichlorodiphenyl sulfoxide in monochlorobenzene, (b) solid-liquid separation of the suspe...
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WO/2020/161228A1 |
The invention relates to a process for producing 4,4'-dichlorodiphenyl sulfoxide comprising: (I) reacting thionyl chloride, chlorobenzene and aluminum chloride in a molar ratio of thionyl chloride : chlorobenzene : aluminum chloride of 1...
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WO/2020/161232A1 |
The invention relates to a process for producing 4,4'-dichlorodiphenyl sulfoxide comprising: (a) reacting thionyl chloride, chlorobenzene and aluminum chloride in a molar ratio of thionyl chloride : chlorobenzene : aluminum chloride of 1...
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WO/2020/161100A1 |
The invention relates to a crystal (C) consisting of at least 95 % by weight of 4,4'-dichlorodiphenylsulfoxide, 0 to 2 % by weight of impurities and 0 to 3 % by weight of an organic solvent (os). Moreover, the present invention relates t...
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WO/2020/161226A1 |
The invention relates to a process for obtaining 4,4'-dichlorodiphenyl sulfoxide from a liquid mixture comprising 4,4'-dichlorodiphenyl sulfoxide and a solvent, comprising: (a) cooling the liquid mixture to a temperature below the satura...
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WO/2020/135000A1 |
Disclosed is a preparation method for 3-phenyl-L-serine or derivatives thereof, comprising the following steps: a. obtaining 3-phenyl-L-serine or derivatives thereof on the basis of the reaction formula represented by Formula I, wherein ...
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WO/2020/099285A1 |
The invention is directed to a catalyst, to a method for manufacturing a catalyst, to a method for manufacturing a bisphenol compound, and to the use of a catalyst. The catalyst of the invention comprises particles having a core and a sh...
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WO/2020/094917A1 |
The present invention relates to a process for the preparation of arylsulfonylpro- penenitriles. The reaction starting from arylsulfonyl halides is catalyzed by a cat- alyst compound comprising a transition metal. The process is scalable...
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WO/2020/084094A1 |
The present invention relates to a process for preparing a nitrated compound, comprising the step of reacting a compound (A) comprising at least one substituted or unsubstituted aromatic or heteroaromatic ring, wherein said heteroaromati...
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WO/2020/006778A1 |
The invention belongs to the field of chemical synthesis and discloses a new crystal form of tembotrione, which is a herbicide, a preparation method thereof, and an application thereof as a preparation for plant protection. The present i...
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WO/2019/243179A1 |
The present invention relates to disubstituted 5(3)-pyrazole carboxylates of the formula (la) or (lb) and a process for their preparation wherein R1, R2, R3, R4 and n are defined as above.
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