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WO/2013/076291A1 |
A process for recycling polyoxymethylene polymers is disclosed. A polyoyxmethylene polymer is at least partially dissolved in an aprotic compound. The resulting solution or suspension (liquid mixture) is then contacted with a catalyst wh...
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WO/2013/076289A1 |
A process for recovering volatile components from an oxymethylene polymer process is disclosed. The volatile components are removed from the process and the formaldehyde collected is converted to a cyclic acetal. The formaldehyde is conv...
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WO/2013/076292A1 |
The present invention relates to a process for producing cyclic acetal comprising i) preparing a liquid reaction mixture comprising a) a formaldehyde source, b) an aprotic compound and c) a catalyst; wherein the total amount of protic co...
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WO/2013/076287A1 |
The present invention relates to a process for producing cyclic acetal comprising i) preparing a reaction mixture comprising a) a formaldehyde source in a liquid medium and b) a catalyst; ii) converting the formaldehyde source into cycli...
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WO/2013/055781A1 |
The invention describes methods of preparation and compositions of plasticizers. The plasticizers include at least 2 alkyl ketal ester moieties and have a molecular weight of greater than 300. In one aspect, the alkyl ketal ester moietie...
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WO/2013/051531A1 |
The present invention relates to a novel anti-HCV agent comprising as an active ingredient a peroxide derivative represented by general formula (I). In general formula (I), C is an optionally substitutable alicyclic hydrocarbon ring grou...
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WO/2013/042343A1 |
[Problem] The problem is to provide a method with which it is possible to economically recover, in a short amount of time and with good efficiency, an industrially useful cyclic polyphenylene ether ether ketone composition. [Solution] A ...
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WO/2013/001763A1 |
Provided is a method for producing a polyphenylene ether ether ketone by subjecting a cyclic polyphenylene ether ether ketone composition, which contains 60 wt.% or more of a cyclic polyphenylene ether ether ketone and which has a meltin...
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WO/2012/102061A1 |
A method for synthesizing a compound according to one mode of the present invention is represented by reaction formula (1). A polymer compound or a cyclic compound can be synthesized by subjecting the starting materials, which are a mult...
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WO/2012/069859A1 |
The invention relates to fluorescent dyes of formula (I) which at a sensitive to sodium ions and optionally also to potassium ions, and to.' salts, of those compounds which are capable to salt formation - in this formula Rx is a group of...
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WO/2012/057438A2 |
The present invention relates to a method for preparing 1,3,5-trioxane using a distillation tower including a reactor, a distillation section, and an extraction section. Particularly, the present invention relates to a method for prepari...
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WO/2012/057437A2 |
The present invention relates to a method for preparing 1,3,5-trioxane using a reaction distillation tower including a reactor and integrally formed distillation and extraction sections. Particularly, the present invention relates to a m...
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WO/2012/053444A1 |
The objective of the present invention is to provide a material that can increase the light-emission brightness of an electroluminescent element. The present invention provides: an organic compound having the constituent unit represented...
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WO/2012/050124A1 |
Provided is a separating agent for chromatography useful for the separation of a specific compound such as optical resolution of amino acid, the separating agent having a higher productivity and containing binaphthyl that has a crown eth...
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WO/2012/027573A2 |
A shape-memory polymers comprising at least one monomer subunit represented by the following structural formula (1).
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WO/2011/129501A1 |
The present invention relates to a method for preparing a poly(ether sulfonimide or -amide)copolymer using cyclic oligomers, and more particularly, to a method for preparing a poly(ether sulfonimide or -amide)copolymer by preparing cycli...
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WO/2011/081080A1 |
Provided is a composition containing 60 wt% or more of cyclic polyphenylene ether ether ketone represented by formula (I). The cyclic polyphenylene ether ether ketone is a mixture of cyclic polyphenylene ether ether ketones having a diff...
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WO/2011/067229A1 |
The invention relates to the use of a raw trioxane stream IV having a trioxane proportion of greater than or equal to 90 wt%, obtained in a method for separating out trioxane from an input stream I of formaldehyde, trioxane, and water, w...
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WO/2011/064300A1 |
This invention relates to A crown ether of formula (I) wherein m is 4, 5, 6, 7, or 8 and i is, independently for each occurrence, 1 or 2; at least one occurrence in the crown ether of R1, R2 and the carbon to which R1 and R2 are attached...
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WO/2010/135427A2 |
Monomeric and dimeric trioxane fluoroaryl amides, 5-carbon-linked, C-10 non-acetal trioxane dimer esters; trioxane silylamides; and trioxane dimer orthoesters and methods of their use for treating subjects infected with malaria or other ...
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WO/2010/119425A1 |
This invention relates to an improved process for the preparation of compounds of Formula I, salts of the free base cis-adamantane-2-spiro-3'-8'-[[[(2'-amino-2'-methyl propyl) amino] carbonyl] methyl]-1', 2', 4'-trioxaspiro [4.5] decane,...
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WO/2010/109172A1 |
The present invention relates to dispiro tetraoxane compounds of formula (VII) which may find application in the treatment of malaria.
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WO/2010/083622A1 |
Process for producing ozonised compositions rich in bioactive oxygen through a double ozonisation process comprising three production phases: phase (i): ozonise one or more natural and/or synthetic raw materials, phase (ii): mix the raw ...
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WO/2010/050711A2 |
The present invention relates to a method for preparing trioxane of high purity and a method for preparing polyacetal using the same, and more specifically to a method for preparing trioxane of higher purity than the prior art and a meth...
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WO/2010/047094A1 |
An antitumor agent which is not easily excreted from tumor cells and is suitable for a topical treatment. Specifically disclosed is a rotaxane compound which contains a compound represented by chemical formula 1 as the base structure. ...
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WO/2010/011684A2 |
Methods and compositions for treating disease caused by increased iron levels are disclosed Fluoregenic compounds and methods of using the same are also described.
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WO/2010/011134A2 |
The invention pertains to a process for oxidizing unsaturated starting materials, comprising: (i) providing a liquid composition containing an olefin and/or aromatic starting compound, (ii) compressing an ozone-containing gas to a pressu...
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WO/2010/001824A1 |
Disclosed is a novel antischistosomal agent, more specifically a novel substance capable of inhibiting the proliferation of a schistosome in vivo to prevent the onset of a hepatic disorder caused by an egg of the schistosome when infecte...
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WO/2009/118747A1 |
The present invention relates to novel hydroxy functionalized 1, 2, 4-trioxanes of general formula (7) useful as antimalarial agents. This invention also relates to a process for the preparation of novel hydroxy functionalized 1, 2, 4- t...
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WO/2009/091433A2 |
A means and method for treating malaria, schistosomiasis, and cancer using a spiro or dispiro 1,2,4-trioxolane is described. The preferred 1,2,4-trioxolanes include a spiroadamantane group on one side of the trioxolane group, and a spiro...
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WO/2009/089450A1 |
Herein are described a process for forming a quaternary carbon useful in the preparation of macrolactones, an enantioselective synthesis of (+)-peloruside A, and methods for treating a patient in need of relief from cancer or a cancer-re...
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WO/2009/077415A1 |
Disclosed is a method for producing polyoxymethylene homopolymers or copolymers (7) by homopolymerizing or copolymerizing trioxane, starting from methanol (1) that is oxidized in a first reactor of a first production system (A) such that...
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WO/2009/077416A1 |
Disclosed is a method for producing crude trioxane (1) at a concentration ranging from 50 to 70 percent by weight of trioxane by trimerizing formaldehyde from an aqueous formaldehyde solution (2) in the presence of an acid catalyst (3) a...
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WO/2009/055863A1 |
The present invention relates to desferoxamine conjugates, derivatives and analogues thereof. In particular, the present invention relates to desferoxamine conjugates, analogues and derivatives thereof, and methods for reducing levels of...
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WO/2009/047109A1 |
The invention describes a method for separating trioxane from a supply flow I of formaldehyde, trioxane, and water, wherein a) a supply flow I containing formaldehyde as the main component and trioxane and water as the secondary componen...
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WO/2009/027434A2 |
The invention relates to a method for removing formic acid from a mixture that contains formaldehyde, trioxane, water and formic acid, by distillation. According to said method, at least one tertiary amine and/or an imine or a mixture th...
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WO/2009/026581A2 |
A molecular indicator for detecting primary diamines includes an indicator structure coupled to (a) a bis-crown ether structure or (b) a structure having a bis- crown ether-like functionality. A package for detecting an analyte emitted b...
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WO/2009/007345A2 |
The invention provides catalytically active compounds for alkyne metathesis comprising a ligand, on his part containing a nitrogen which is forming a complex with a transition metal atom. Formally, the nitrogen in the ligand is mononegat...
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WO/2008/119743A1 |
The invention relates to a method for producing trioxane from trioxymethylene glycol dimethyl ether (POMD- MEn=3) by reacting trioxymethylene glycol dimethyl ether in the presence of an acidic catalyst and subsequently processing the rea...
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WO/2008/119742A1 |
The invention relates to a method for producing trioxane from trioxymethylene glycol dimethyl ether (POMD- MEn=3) by reacting trioxymethylene glycol dimethyl ether in the presence of an acidic catalyst and subsequently processing the rea...
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WO2008083635B1 |
A method of preparation of Montelukast of formula (I) by reaction of the compound of formula (III) and a compound of formula (IX), characterized in that the reaction is carried out in the presence of a base, an inert solvent and a compon...
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WO/2008/099415A1 |
The present invention relates to novel substituted bis-1, 2, 4-trioxanes i.e. compounds containing two 1, 2, 4-trioxane moieties of general formula (6) useful as antimalarial agents. This invention also relates to a process for the prepa...
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WO/2008/090169A1 |
The invention relates to a method for separating trioxane from an inlet flow (I) consisting of formaldehyde, trioxane and water. Said method consists in a) preparing an inlet flow (I), which contains formaldehyde as the main component an...
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WO/2008/076491A2 |
Ion sensors on a medical device lead is presented. An ion sensor includes an ion-selective working electrode and an ion-selective reference electrode. At least one of the electrodes includes a partially fluorinated organic compound based...
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WO/2008/044704A1 |
Disclosed is a novel anti-cancer agent which is less likely to be excreted from a cancer cell and is suitable for the local treatment against a cancer cell. The anti-cancer agent comprises a rotaxane compound represented by the chemical ...
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WO/2008/038030A2 |
A compound having the formula (I) wherein ring A represents a substituted or unsubstituted monocyclic or multicyclic ring; m=any positive integer; n=0-5; X=CH and Y=-C(O)NR1R2, -NR1R2 or -S(O)2R4, where R1, R2 and R4 are each individuall...
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WO/2008/038299A1 |
This present invention relates to substituted 1, 2, 4-trioxanes having general formula (2) and isomesr thereof useful as antimalarial agents. This invention also relates to a process for the preparation of these novel substituted 1, 2, A...
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WO/2008/037484A2 |
This invention relates to the use of a cyclic compound of formula (I), wherein A, B independently in each occurrence is alkane-i,j-diyl having k carbon atoms, i and independently j being less than or equal k and k being selected from 1 t...
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WO/2007/144320A1 |
Integrated method for the preparation of trioxane from formaldehyde, comprising the steps: a) introduction of a feeding flow A1 containing formaldehyde and water and a return flow B3 consisting essentially of formaldehyde and trioxane in...
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WO/2007/138435A2 |
This invention relates to an improved process for the preparation of a compound of Formula (I), salts of the free base cis-adamantane-2-spiro-3'-8'-[[[(2'-amino-2'-methyl propyl) amino] carbonyl] methyl]-1',2',4'-trioxaspiro [4.5] decane...
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