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Matches 1 - 50 out of 1,451

Document Document Title
WO/2020/130080A1
The purpose of the present invention is to provide a method for synthesizing a p-quinone using one of alkoxy-substituted benzenes as a starting material. The present invention relates to a method for producing a compound of formula (II...  
WO/2020/105500A1
The objective of the present invention is to provide a processing method for a working solution, wherein the amount of anthraquinones is increased by regenerating, into anthraquinones, by-products derived from anthraquinones and having n...  
WO/2020/103118A1
A process for manufacturing a compound of formula (II), said process comprising a step of reacting a compound of formula (I) in the presence of a zeolite catalyst and a solvent, (I), (II) wherein R1, R2, R3, R4, R5, R6, R7 and R8 are ind...  
WO/2020/055678A1
The present application discloses methods for the efficient preparation of high purity compounds of the Formula I, and their methods of use.  
WO/2020/029017A1
A system and method for purifying coenzyme Q10 are provided. The method includes: passing a CoQ10-containing crude product through a first chromatographic column to obtain a first CoQ10-containing intermediate product. The method further...  
WO/2020/015316A1
Disclosed are a method for extracting and purifying coenzyme Q10 and coenzyme Q10 prepared thereby. The method extracts and purifies coenzyme Q10 from coenzyme Q10 bacteria and comprises the steps of extracting, precipitating, decoloring...  
WO/2019/201819A1
The present invention relates to the oxidation of alkylated p-hydroquinones. It has been found the oxidation by oxygen or an oxygen containing gas mixture in the presence of a transition metal salt, which does not comprise any polydentat...  
WO/2019/201820A1
The present invention relates to the oxidation of alkylated p-hydroquinones. It has been found the oxidation by aqueous hydrogen peroxide in the presence of a transition metal salt, which does not comprise any polydentate ligand bound to...  
WO/2019/158514A1
Disclosed is a process for the oxidation of at least one chroman (C1) in a solvent mixture comprising at least two solvents or in a C-bearing solvent, with a gaseous compound comprising, essentially consisting of, or consisting of oxygen...  
WO/2019/127829A1
A fermentation production method for an oxidized coenzyme Q10 and a high-content oxidized coenzyme Q10 prepared therefrom, which are characterized in that the oxidation-reduction potential ORP of a fermentation broth is controlled to be ...  
WO/2019/128060A1
The present application relates to a method for extracting a coenzyme Q10 and phospholipids from a coenzyme Q10 fermentation bacterial powder. The method is characterized in that a mixed solvent having a three-dimensional Hansen solubili...  
WO/2019/028933A1
The present invention relates to the technical field of pharmaceuticals, and discloses an antibacterial application of a Dryopteris fragrans phloroglucinol compound flavaspidic acid BB. The present invention provides for the first time a...  
WO/2018/161482A1
A carbon nitride-based photocatalyst and a preparation method therefor, wherein the photocatalyst is prepared by reacting melcimide with 3,3,,4,4, ­­­­­­­benzophenone tetracarboxylic dianhydride, such that the energy levels of the...  
WO/2018/145660A1
The present invention relates to a fully continuous flow synthesis process for use with 2-methyl-1,4-naphthoquinone and an integrated continuous flow reactor for use in achieving said process; the synthesis process uses 2-methylnaphthale...  
WO/2018/089507A1
A method for producing thymoquinone and/or thymohydroquinone in Monarda by growing Monarda with elevated levels of carvacrol and/or thymol in the fresh plant tissue and vigorous growth, harvesting the Monarda, leaving the Monarda to sene...  
WO/2018/044150A1
The present invention relates to a method for producing demethylbelamcandaquinone B from Labisia pumila and use thereof. The method is characterized by the steps of obtaining an extract from Labisia pumila plant material using water extr...  
WO/2017/151111A1
Improved systems and methods for producing synthetic hypericin at high volume and high purity.  
WO/2017/145716A1
In this production method according to the present disclosure, a 1,1'-binaphthyl derivative precursor having, at each of the 2-position and 2'-position of a 1,1'-binaphthyl skeleton, an electron-donating group including an oxygen atom di...  
WO/2017/104798A1
The objective of a first invention of the present invention is to provide a method that makes it possible to efficiently produce an oxidation reaction product of a hydrocarbon or derivative thereof using the hydrocarbon or derivative the...  
WO/2017/105682A1
A phenylene ether oligomer is prepared by a process that includes partially converting 2,6-dimethylphenol to 3,3',5,5'-tetramethyl-4,4'-dihydroxybiphenyl and/or 3,3',5,5'-tetramethyldiphenoquinone, converting the residual 2,6 dimethylphe...  
WO/2017/033557A1
Provided is a method for producing a large amount of 2-hydroxy-1,4-naphthoquinone with a high yield and at a low cost. This method comprises oxidizing 2-hydroxynaphthalene with hydrogen peroxide water in the presence of a vanadium cataly...  
WO/2016/207252A1
A method of preparing a compound represented by general formula (3) : Formula (3). R1 and R2 are each independently an alkyl group. The method includes reacting a compound represented by general formula (2) : Formula (2) with an alkylami...  
WO/2016/201852A1
Provided are a photoreaction device and a system for preparing a compound. The photoreaction device comprises a reaction vessel (100) and a light source (400), wherein the reaction vessel (100) defines a photoreaction space (200), and th...  
WO/2016/199789A1
The present invention addresses the problem of efficiently synthesizing a trifluoromethyl substituted semisquarate in a short process, in order to manufacture trifluoromethyl compounds with various functionalities. A method was developed...  
WO/2016/144782A1
Substantially homogeneous and stable suspensions of anthraquinone (AQ) compositions and methods of preparation are disclosed. The AQ compositions are utilized in pulping processes.  
WO/2016/060670A1
This invention discloses a method of making vitamin K1. The mentioned method of making vitamin K1 comprises performing a first one-pot synthesis with base catalyst, performing a first hydrolysis, performing a substitution, and performing...  
WO/2016/038146A1
The present invention relates to a new crystal form of ubidecarenone, wherein the ratio of the crystal surface area measured in µm2 per volume measured in µm3 of the ubidecarenone crystals is greater than 2 and wherein the crystal form...  
WO/2015/162629A3
The present invention discloses novel antifungal herbal composition comprising standardized ethyl acetate extracts or active ingredients isolated from ethyl acetate extract of Lawsonia inermis, for the management of fungal infections, in...  
WO/2015/169898A1
The present invention relates to an improved process for the production of 2,6-dimethylbenzoquinone (2,6-DMQ) by oxidation of 2,6-dimethylphenol with oxygen in the presence of a copper salt.  
WO/2015/002151A1
Provided is a method for stabilizing DHNA or a vitamin contained in a food, a beverage and or like under an environment which can be subjected to natural light or artificial light, e.g., a transparent container, without requiring the use...  
WO/2015/000767A1
The invention relates to a method for producing 2,3,5-trimethyl benzoquinone or a compound containing 2,3,5-trimethyl benzoquinone, the method comprising the following steps: Oxidation of 2,3,6-trimethylphenol with oxygen or an oxygen-co...  
WO/2013/098832A4
The present invention relates to an improved method for preparation and purification of atovaquone and its intermediate product. The present invention claims for an improved method for preparation and purification of the intermediate tra...  
WO/2013/159593A1
The present invention relates to the biological field, and provides a method for extracting coenzyme Q10 and an application of the coenzyme Q10. The extracting method comprises: A. drying palm residues; B. extracting the dried palm resid...  
WO/2013/098832A3
The present invention relates to an improved method for preparation and purification of atovaquone and its intermediate product. The present invention claims for an improved method for preparation and purification of the intermediate tra...  
WO/2013/121190A1
The present invention discloses a simple method for transforming cashew nut shell liquid into an active herbicidal composition.  
WO/2013/121873A1
This production method for a biaryl compound includes a step in which phenol or naphthol is reacted in the presence of tetrabutylammonium iodide and either tert-butyl hydroperoxide or hydrogen peroxide.  
WO/2013/041676A1
The present invention relates to a process of preparing tocotrienol quinones. It has been found that this process allows the formation of the R-isomer in a high yield in a very efficient and economically interesting way. Said process is ...  
WO/2012/173909A3
The invention provides a method for synthesizing 7-Acetyleno quinone methide compounds that is safe and inexpensive. The meod avoids the need for extremely cold reaction temperatures and unlike the prior art does not require any highly e...  
WO/2013/002265A1
Provided is a method of production for obtaining, at high yield, a 2-chloromethylbenzaldehyde-containing liquid composition that is very useful in industry. More specifically, provided is a method for producing 2-chloromethylbenzaldehyde...  
WO/2012/173909A2
The invention provides a method for synthesizing 7-Acetyleno quinone methide compounds that is safe and inexpensive. The meod avoids the need for extremely cold reaction temperatures and unlike the prior art does not require any highly e...  
WO/2012/153162A1
Provided is a process of preparation of 2-[trans,-4-(4'-chlorophenyl)cyclohexyl]-3-hydroxy- 1,4-naphthoquinone, i.e. Atovaquone [I] which is cost effective, green, and eco-friendly process, without separation of any diastereomers or geom...  
WO/2012/080243A3
Disclosed herein is novel process for preparation of atovaquone, which process includes reacting1H-2-benzopyran-1,4(3H)-dione with 4-(4-chlorophenyl)cyclohexanecarbaldehyde. The invention further discloses novel intermediates useful in t...  
WO/2012/080243A2
Disclosed herein is novel process for preparation of atovaquone, which process includes reacting1H-2-benzopyran-1,4(3H)-dione with 4-(4-chlorophenyl)cyclohexanecarbaldehyde. The invention further discloses novel intermediates useful in t...  
WO/2012/041918A3
The present invention relates to a process for the preparation of aqueous hydrogen peroxide from the anthraquinone (AO) loop process, comprising using at least one alkylanthraquinone of formula (I) wherein -R1, R2 and R3 are chosen from ...  
WO/2012/055253A1
A regeneration method of chromatographic silica gel, especially a regeneration method of silica gel for chromatographing coenzyme Q10 is provided, wherein a high polar solvent is fed from the bottom of the chromatographic column to wash ...  
WO/2012/041918A2
The present invention relates to a process for the preparation of aqueous hydrogen peroxide from the anthraquinone (AO) loop process, comprising using at least one alkylanthraquinone of formula (I) wherein -R1, R2 and R3 are chosen from ...  
WO/2012/028905A1
The present invention describes a process for producing 2-methyl-l,4-naphthoquinone by oxidizing 2-methylnaphthalene with fresh hydrogen peroxide in the presence of glacial acetic acid without any mineral or transition metal catalyst.  
WO/2011/141595A1
The invention relates to a method for the catalytic oxidation of anthracenes to anthraquinones, including a catalytic system based on copper compounds of formula TpxCu(NCMe), that promotes the selective oxidation of anthracene and 2-ethy...  
WO/2011/117324A3
A new process for making polyprenols is described as well as the use of these building blocks in the synthesis of Vitamin K2. The process involves reaction of a compound of formula (X) with a compound of formula (XI) in the presence of a...  
WO/2011/113284A1
Shikonin naphthazarin derivatives represented by formula I and their preparation method are disclosed, wherein Ri~R4 and R are defined as in the description. The antitumor use of the compounds is also disclosed.  

Matches 1 - 50 out of 1,451