| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 549357000 | Plural ring oxygens in the hetero ring (e.g., 1,2-dioxin, etc.) | 79 |
| 549358000 | Polycyclo ring system having the hetero ring as one of the cyclos | 22 |
| 20140171662 | PIMARANE DITERPENES FROM ANISOCHILUS VERTICILLATUS - This invention discloses diterpenes class of novel compounds of general formula I from a novel source. More particularly the invention relates to extracts/fractions containing pimarane diterpenes from | 06-19-2014 |
| 20160096844 | ORIDONIN ANALOGS, COMPOSITIONS, AND METHODS RELATED THERETO - Certain embodiments are directed to oridonin analogs or derivatives. In certain aspects, the derivatives are used as anticancer or anti-inflammatory agents. | 04-07-2016 |
| 549359000 | Tricyclo ring system having the hetero ring as one of the cyclos | 5 |
| 20110130575 | SYNTHESIS OF CLAY-TEMPLATED SUBNANO-SIZED ZERO VALENT IRON (ZVI) PARTICLES, CLAYS CONTAINING SAME, AND USE OF BOTH IN CONTAMINANT TREATMENTS - A clay comprising a 2:1 aluminosilicate clay having negative charge sites, the 2:1 aluminosilicate clay containing subnano-sized zero valent iron (ZVI) particles distributed on clay surfaces is provided. In one embodiment, at least some or all of the particles have a cross-section of five ( | 06-02-2011 |
| 20110288314 | PHLOROGLUCINOL DERIVATIVES FROM ECKLONIA CAVA HAVING ANTI-HIV-1 INHIBITORY ACTIVITY - The present invention relates to a pharmaceutical composition and health functional food having anti-HIV-1 inhibitory activity containing phloroglucinol derivative, 6,6′-bieckol as an effective ingredient, EC extract and its phloroglucinol derivative, 6,6′-bieckol according to the present invention does not show cytotoxic effect compared to other tannin, and have effects to inhibit the HIV-1 induced syncytia formation and the p24 antigen production as well as the HIV-1 reverse transcriptase activity. | 11-24-2011 |
| 20140039204 | 7'-PHLOROECKOL COMPOUND FOR HAIR PROLIFERATION AND A COSMETIC COMPOSITION CONTAINING SAME - The effects on human hair growth of 7′-phloroeckol (1-(3′,5′-dihydroxyphenoxy)-7-(2″,4″,6-trihydroxyphenoxy)-2,4,9-trihydroxydibenzo-1,4-dioxin) isolated from | 02-06-2014 |
| 20140309438 | NOVEL COMPOUND AND METHOD FOR PRODUCING SAME - An object of the present invention is to provide a novel compound useful as an antifungal substance and a method for producing the compound. The present invention relates to a compound represented by Formula (I | 10-16-2014 |
| 549361000 | Three or more ring oxygens in the tricyclo ring system (e.g., actinospectacin, etc.) | 1 |
| 20110257417 | HIV-1 INHIBITING PHARMACEUTICAL COMPOSITION CONTAINING AN ECKLONIA CAVA-DERIVED PHLOROGLUCINOL POLYMER COMPOUND - The present invention relates to a HIV-1 inhibiting pharmaceutical composition containing, as an active ingredient, 6,6′-bieckol which is a phloroglucinol polymer compound separated from Ecklonia cava. The Ecklonia cava-derived 6,6′-bieckol according to the present invention inhibits HIV-1 induced cell fusion, the cell lysis effect, and the cytopathogenic effect including virus p24 antibody production, exhibits RT enzyme inhibition activity and HIV-1 infection inhibition activity, and shows no cytotoxicity at the concentration that almost perfectly inhibits HIC-1 replication. | 10-20-2011 |
| 549362000 | Bicyclo ring system having the hetero ring as one of the cyclos | 15 |
| 20120108825 | AMORPHOUS SILIBININ FOR THE TREATMENT OF VIRAL HEPATITIS - The invention relates to a method for the preparation of amorphous silibinin (or its synonyms: silybin or silibin) derived from a milk thistle fruit extract having an increased release rate and improved absorbability or bioavailability, and to the use of amorphous silibinin for the treatment or prevention of liver diseases, preferably for the treatment of viral hepatitis, e.g. hepatitis B or C, in particular in a patient who will undergo or has undergone liver transplantation. Preferably, the amorphous silibinin is adapted for oral administration. | 05-03-2012 |
| 20140275576 | PROCESS FOR THE PREPARATION OF (2,3-DIHYDRO-BENZO[B][1,4]DIOXIN-2-YL) METHANOL DERIVATIVES - The present invention is directed to a process for the preparation of (2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol derivatives. | 09-18-2014 |
| 549363000 | The two cyclos share at least three ring members (i.e., bridged) | 2 |
| 20110098488 | Process for Oxidizing Organic Substrates By Means of Singlet Oxygen Using a Modified Molybdate LDH Catalyst - Oxidation of organic substrates by means of singlet oxygen, in which organic substrates which react with | 04-28-2011 |
| 20140296541 | ORTHOESTER COMPOUND - A compound is provided that is useful for, among other things, preparing water-soluble polymer derivatives bearing a terminal N-succinimidyl ester. | 10-02-2014 |
| 549364000 | Three or more ring oxygens in the bicyclo ring system | 4 |
| 20130281716 | METHOD OF MAKING DIACETAL COMPOUND IN AQUEOUS MEDIUM - This invention is directed to a process for preparation of acetal derivatives, 1,3:2,4-bis (3,4-dimethylbenzylidene)sorbitol (DMDBS) and 1,3:2,4-bis (4-methylbenzylidene)sorbitol (MDBS) by carrying out a dehydrocondensation reaction between an aldehyde and an alditol using an aqueous ionic fluid as the acid catalyst. | 10-24-2013 |
| 20130296580 | Process For Preparation Of Acetals - A process for the preparation of 1,3:2,4-bis (4-methylbenzylidene) sorbitol (MDBS) and 1,3:2,4-bis (3,4-dimethylbenzylidene) sorbitol (DMDBS) via a dehydrocondensation reaction is disclosed. The reaction is carried out between an aldehyde and an alditol in a mole ratio of 2:1 wherein ionic fluid is used as the acidic catalyst and/or reaction medium. The ionic fluid used in accordance with the present invention is quaternary ammonium salt based ionic liquid. | 11-07-2013 |
| 20130296581 | Process For The Preparation of Alditol Acetals - The present invention is directed to a process for the preparation of 1,3:2,4-bis (4-methylbenzylidene) sorbitol (MDBS) and 1,3:2,4-bis (4-dimethylbenzylidene) sorbitol (DMDBS) by dehydrocondensating an aldehyde and an alditol using a hydrophobic ionic liquid as an acid catalyst. The ionic liquid used in the accordance with the process of the present invention is a phosphonium ion based ionic liquid. | 11-07-2013 |
| 20160130277 | METHOD FOR PREPARING LONG-CHAIN ALKYL CYCLIC ACETALS MADE FROM SUGARS - Long-chain alkyl cyclic acetals made from sugars are obtainable by a method that comprises the steps consisting of:
| 05-12-2016 |
| 549365000 | The ring oxygens are in the 1,2- or 1,3-positions of the hetero ring | 6 |
| 20090156838 | Method of Refining Episesamin - There is disclosed an episesamin refining method in which a mixture of sesamin components that contains sesamin, episesamin and the like is brought into contact with an aqueous medium to form a slurried mixture, and thereafter the solids are separated from the mixture or the slurried mixture is dissolved in a suitable aqueous medium under heating and, thereafter, the solution is slowly cooled to recrystallize, thereby yielding an episesamin-enriched composition with an increased relative episesamin content. By the present invention, episesamin can be conveniently and efficiently refined from a mixture of sesamin components that mainly comprises sesamin and episesamin. | 06-18-2009 |
| 20110077417 | Intermediates for Hydroxylated Contrast Enhancement Agents - In one aspect, the present invention provides a protected ligand precursor having structure XXI | 03-31-2011 |
| 20110112313 | PREPARATION OF FLUORINATED 1,3-BENZODIOXANES - The invention relates to novel fluorinated achiral 1,3-benzodioxanes of the general formula (I-a) and (I-b) | 05-12-2011 |
| 20110207947 | METHOD FOR OBTAINING ZARAGOZIC ACID AND DERIVATIVES THEREOF - The present invention is aimed at a process for obtaining zaragozic acid and derivatives thereof, to the intermediate compounds of this synthesis and to the use of these intermediate compounds in the preparation of zaragozic acid. | 08-25-2011 |
| 20130303787 | Process For Preparing Alditol Acetals - A process for preparing alditol Acetals via a dehydrocondensation reaction is disclosed. The reaction is carried out by adding an aldehyde and an aldiol using a metal salt based ionic liquid as an acid catalyst. The ionic liquid used in the process is prepared by dissolving a hydrogen donor and a compound providing counter ion in a solvent. | 11-14-2013 |
| 20160096816 | METHOD OF PREPARING INTERMEDIATE OF SALMETEROL - A method of preparing an intermediate of salmeterol (Compound 1, 2-amino-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)ethanol) includes: reacting compound 2 with 2-methoxypropene in a first organic solvent to produce a reaction solution including compound 3, compound 2 including a 2-bromo precursor of Compound 1; reacting compound 3 with a nitrogen source to produce compound 4; reacting compound 4 with sodium borohydride in a second organic solvent to produce compound 5; and debenzylating compound 5 by ammonium formate/palladium-carbon catalytic transfer hydrogenation in a third organic solvent to produce Compound 1. A method of preparing salmeterol includes preparing Compound 1, and reacting Compound 1 to prepare salmeterol. | 04-07-2016 |
| 549366000 | Nitrogen attached indirectly to the hetero ring by acyclic nonionic bonding | 1 |
| 20140288317 | ARYLOXYANILIDE IMAGING AGENTS - The present invention provides a novel radiolabelled aryloxyalinine derivative suitable for in vivo imaging. In comparison to known aryloxyalinine derivative in vivo imaging agents, the in vivo imaging agent of the present invention has better properties for in vivo imaging. The in vivo imaging agent of the present invention demonstrates good selective binding to the peripheral benzodiazepine receptor (PBR), in combination with good brain uptake and in vivo kinetics following administration to a subject. | 09-25-2014 |
| 549367000 | Three or more ring oxygens in the hetero ring | 17 |
| 549368000 | Trioxane per se | 17 |
| 20080281109 | Integrated Method For the Production of Trioxane From Formaldehyde - The invention relates to an integrated process for preparing trioxane from formaldehyde in which, in a first step, a stream A | 11-13-2008 |
| 20080293954 | Process For Synthesizing Trioxymethylene Using Ionic Liquid - The present invention relates to a process for synthesizing trioxymethylene, wherein an aqueous solution of formaldehyde is used as the reactant; and an acidic ionic liquid in an amount of from 0.01 to 10 wt % is used as a catalyst. | 11-27-2008 |
| 20090187033 | INTEGRATED METHOD FOR THE PREPARATION OF TRIOXANE FROM FORMALDEHYDE - An integrated process for preparing trioxane from formaldehyde, comprising the steps of:
| 07-23-2009 |
| 20100121081 | METHOD FOR SEPARATING TRIOXANE FROM A TRIOXANE/FORMALDEHYDE/WATER MIXTURE BY MEANS OF PRESSURE CHANGE RECTIFICATION - A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by
| 05-13-2010 |
| 20100130756 | METHOD FOR PRODUCING TRIOXANE FROM TRIOXYMETHYLENE GLYCOL DIMETHYL ETHER - A process for preparing trioxane from trioxymethylene glycol dimethyl ether (POMDME | 05-27-2010 |
| 20100145079 | METHOD FOR PRODUCING CYCLIC FORMALDEHYDE DERIVATIVES FROM POLYOXY DIALKYL ETHERS - A process for preparing trioxane from trioxymethylene glycol dimethyl ether (POMDME | 06-10-2010 |
| 20100152466 | INTEGRATED METHOD FOR PRODUCING TRIOXANE FROM FORMALDEHYDE - The invention relates to an integrated process for preparing trioxane from formaldehyde in which a stream A | 06-17-2010 |
| 20100324311 | METHOD FOR THE PRODUCTION OF CRUDE TRIOXANE - A process for preparing crude trioxane ( | 12-23-2010 |
| 20130261318 | METHOD FOR PREPARING 1,3,5-TRIOXANE - 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 method for preparing 1,3,5-trioxane characterized in that the amount of formaldehyde discharged to the outside of the system is reduced, to thereby increase the yield of 1,3,5-trioxane by recirculating a portion of the water phase, which is discharged through the top of the reaction extraction tower, to the extraction section, and thus to the upper portion of the extractor supply stream which supplies extractant to the extraction section. | 10-03-2013 |
| 20130261319 | METHOD FOR PREPARING 1,3,5-TRIOXANE - 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 preparing 1,3,5-trioxane, in which the water phase separated from the stream discharged through the extraction unit of the reaction distillation tower is used in the process of extracting 1,3,5-trioxane. | 10-03-2013 |
| 20140316147 | Process For The Production of Trioxane - The present invention relates to a process for producing cyclic acetal comprising i) preparing a liquid reaction mixture comprising a) formaldehyde source, b) an aprotic compound and c) a catalyst; and ii) converting the formaldehyde source into cyclic acetals. | 10-23-2014 |
| 20140343300 | Process For The Production Of Trioxane From Aqueous Formaldehyde Sources - 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 compounds is less than 40 wt.-%, based on the total weight of the reaction mixture; and ii) converting the formaldehyde source into cyclic acetals. | 11-20-2014 |
| 20140343301 | Process for Producing A Cyclic Acetal - 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 cyclic acetals, wherein the final conversion of said formaldehyde source to said cyclic acetal is greater than 10% on basis of the initial formaldehyde source. | 11-20-2014 |
| 20140343302 | Process for Recycling Polyacetals - 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 which causes the polyoxymethylene polymer to be converted into a cyclic acetal. The cyclic acetal can be separated, collected and used in other processes. In one embodiment, the cyclic acetal may be used to produce a polyoxymethylene polymer. | 11-20-2014 |
| 20160075679 | METHOD OF PRODUCING TRIOXANE - Disclosed is a method of producing trioxane, including: (A) preparing trioxane from a high-concentration formaldehyde aqueous solution in the presence of an acid catalyst; (B) distilling a mixture including trioxane; (C) liquefying the distilled gas mixture; (D) mixing the liquefied liquid mixture with an extraction solvent and separating the mixture into an aqueous phase and a solvent phase; (E) distilling the solvent phase to give trioxane, and mixing the aqueous phase with the extraction solvent to give a mixture, which is then separated into an aqueous phase and a solvent phase; and (F) discharging the aqueous phase separated in (E) out of the system, and recirculating the solvent phase so as to be reused in (D) and (E). | 03-17-2016 |
| 20160089661 | SOLID PHOSPHORIC ACID CATALYST, AND METHOD FOR PRODUCING TRIOXANE - A solid phosphoric acid catalyst which, when gas-phase synthesizing trioxane from formaldehyde, results in production of trioxane at a high yield and at a high selection rate by markedly suppressing side reactions, reduces the adhesion of organic matter to the catalyst surface, and achieves a stable and long-term catalyst reaction. This solid phosphoric acid catalyst contains silicon phosphate oxide (SPO) obtained by sintering at a temperature of at least 200° C. a carrier material to which a phosphoric acid component has been added, and the total quantity of acid does not exceed 5 mmol per 1 g of solid phosphoric acid catalyst when calculated as acid quantity determined by NH | 03-31-2016 |
| 20170233366 | METHOD FOR PREPARING TRIOXANE | 08-17-2017 |
| 549369000 | The ring oxygens are in the 1,3-positions of the hetero ring (e.g., 1,3 dioxane, etc.) | 35 |
| 20080234501 | Method for Producing 2,5-Dimethylphenyl Acetic Acid - The invention relates to a method for preparing 2,5-dimethylphenylacetic acid by converting p-xylene with chloroacetyl chloride into 2-chloro-1-(2,5-dimethylphenyl)ethanone, which is reacted with the compound of the formula (II) to give the compound of the formula (III), which is then rearranged to give a mixture of the compounds (IV) and (V), which is then hydrolyzed to 2,5-dimethylphenylacetic acid. | 09-25-2008 |
| 20090012319 | Process for the preparation 2-substituted-derivatives of estrone and estradiol - The invention provides a process for the preparation of 2-substituted-derivatives of estrone and estradiol. The invention also provides several novel compounds, which can be intermediates in the process, and processes to prepare these novel compounds. The invention also provides 2-alkoxy-estrone, 2-alkoxy-estradiol or mixtures thereof essentially free from other estrogenic intermediates. | 01-08-2009 |
| 20090156839 | Method for producing 2,5-dimethylphenyl acetic acid - The invention relates to a method for preparing 2,5-dimethylphenylacetic acid by converting p-xylene with chloroacetyl chloride into 2-chloro-1-(2,5-dimethylphenyl)ethanone, which is reacted with the compound of the formula (II) to give the compound of the formula (III), which is then rearranged to give a mixture of the compounds (IV) and (V), which is then hydrolyzed to 2,5-dimethylphenylacetic acid. | 06-18-2009 |
| 20120330034 | PRODUCTION OF CYCLIC ACETALS BY REACTIVE DISTILLATION - Cyclic acetals can be produced in a reactive distillation apparatus by combining a polyhydroxyl compound and an aldehyde. High concentrations of cyclic acetals are removed as liquid products from the column while water is removed as an overhead vapor stream. | 12-27-2012 |
| 20140081034 | 5-SEC-BUTYL-2-(2,4-DIMETHYL-CYCLOHEX-3-ENYL)-5-METHYL-[1,3]DIOXANE AND PROCESS FOR MAKING THE SAME - The present invention is directed to 5-sec-butyl-2-(2,4-dimethyl-cyclohex-3-enyl)-5-methyl-[1,3]dioxane and a novel process for making the same. | 03-20-2014 |
| 20140357875 | PRODUCTION OF CYCLIC ACETALS BY REACTIVE DISTILLATION - Cyclic acetals can be produced in a reactive distillation apparatus by combining a polyhydroxyl compound and an aldehyde. High concentrations of cyclic acetals are removed as liquid products from the column while water is removed as an overhead vapor stream. | 12-04-2014 |
| 20150329456 | (6R,10R)-6,10,14-TRIMETYLPENTADECAN-2-ONE PREPARED FROM 6,10,14 TRIMETYLPENTADECA-5,9,13-TRIEN-2-ONE OR 6,10,14-TRIMETYLPENTADECA-5,9-DIEN-2-ONE - The present invention relates to a process of manufacturing (6R,10R)-6,10,14-trimethylpentadecan-2-one in a multistep synthesis from a mixture of (5E,9E)-, (5E,9Z)-, (5Z,9E)- and (5Z.9Z)-isomers of 6,10,14-trimethylpentadeca-5,9,13-trien-2-one or 6,10,14-trimethylpentadeca-5,9-dien-2-one. The process is very advantageous in that it forms in an efficient way the desired chiral product from a mixture of stereoisomers of the starting product. | 11-19-2015 |
| 20160185683 | PROCESS OF ASYMMETRIC HYDROGENATION OF KETALS AND ACETALS - The present invention relates to a process of the asymmetric hydrogenation of a ketal of an unsaturated ketone or an acetal of an unsaturated aldehyde by molecular hydrogen in the presence of at least one chiral iridium complex. This process yields chiral compounds in a very efficient way and is very advantageous in that the amount of iridium complex can be remarkably reduced. | 06-30-2016 |
| 549370000 | Plural hetero rings | 6 |
| 20080207927 | PROCESS FOR THE PRODUCTION OF GLYCEROL ACETALS - A process for the production of glycerol acetals of aldehydes selected from the group consisting of isobutyraldehyde, 2-ethylhexyl aldehyde, furfuryl aldehyde and benzaldehyde, in which glycerol is reacted with one or more of those aldehydes in the absence of organic solvents and in the presence of phosphoric acid as catalyst, the molar ratio of glycerol to aldehyde(s) being between 1:1 to 1:1.2. | 08-28-2008 |
| 20090062554 | PROCESS FOR PREPARING PHOSPHORUS COMPOUNDS HAVING PHOSPHATE-PHOSPHONATE BOND - A novel process for preparing in a high purity and in a high yield phosphorus compounds having a phosphate-phosphonate bond within one molecule, along with only a small amount of a by-product, without being restricted by the kind of a phosphonate having an alcoholic hydroxyl group which is a raw material, without using a catalyst such as magnesium chloride, but only using a nitrogen-containing basic compound. | 03-05-2009 |
| 20100298577 | Multifunctional Dendrons and Dendrimers with a High Loading Capacity - The invention relates to novel multifunctional dendrimer structures with a high loading capacity. Said dendrimer structures include a nucleus having at least a first generation or an end generation covalently bonded thereto. The first generation is formed by at least two of the following structures, namely: a spacer, a load, a branching element. In addition, a plurality of sequences (known as intermediary generations) with at least two of the aforementioned structures can be joined to the first generation. The terminal generation is formed by at least three of the following structures, namely: a spacer, a load, a branching element and a terminal. | 11-25-2010 |
| 20140039205 | Method for Preparing Branched Functionalized Polymers Using Branched Polyol Cores - A method of preparing a multiarm polymer includes reacting a branched polyol with one or more functionalizing reagents to effect substitution of an ionizable functional group or a protected ionizable functional group, Y, to form a mixture comprising (i) unsubstituted branched polyol containing no Y groups; (ii) a monosubstituted polyol comprising one Y group, and (iii) a multisubstituted polyol (e.g., a disubstituted polyol comprising two Y groups); followed by purifying the mixture to separate the monosubstituted polyol from other species Thereafter, a water-soluble and non-peptidic polymer segment is attached to the monosubstituted branched polyol at the site of at least one of the hydroxyl groups. The invention also provides purified monosubstituted branched polyols and multiarm polymers prepared by the method and polyol precursors for use in the method. | 02-06-2014 |
| 20140350269 | Acetals Esters Produced from Purified Glycerin for Use and Application as Emollients, Lubricants, Plasticizers, Solvents, Coalescents, Humectant, Polymerization Monomers, Additives to Biofuels - It refers to a new group of acetal monoesters and diesters which have in its structure the ester function and cyclic ethers that give these products excellent properties as solvency, plasticity in polymers, solubility in polar and nonpolar means, spreadability, wetting, low volatility, non-toxicity and biodegradability. These properties make these products excellent candidates as solvents in formulations of pesticides, agricultural herbicides, for the paint and leather industry in domestic or industrial hygiene formulations; as plasticizers for polymers such as polyvinyl chloride, nitrocellulose, cellulose, acrylics, polyvinyl vinyl and its copolymers; as lubricants in industrial formulations, textile industry; as emollients agents which donate oiliness for the cosmetic industry; as wetting agents that are commonly used, and as biodiesel additives to reduce the freezing point and to improve its combustion. | 11-27-2014 |
| 20150291567 | TRANSKETALIZED COMPOSITIONS, SYNTHESIS, AND APPLICATIONS - The present disclosure relates to the preparation of ketal compounds from polyols and oxocarboxylates, and uses thereof. | 10-15-2015 |
| 549371000 | Nitrogen bonded directly to the hetero ring | 1 |
| 20130217899 | INTERMEDIATE COMPOUNDS AND PROCESS FOR THE PREPARATION OF FINGOLIMOD - The present invention relates to processes for the preparation of (2-Amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol hydrochloride (Fingolimod) and pharmaceutically acceptable salts thereof, and intermediates formed in such processes. | 08-22-2013 |
| 549372000 | Chalcogen or -C(=X), wherein X is chalcogen, bonded directly to the hetero ring | 1 |
| 20100099894 | Method for the Synthesis of Cyclic Acetals by the Reactive Extraction of a Polyol in a Concentrated Solution - A method for the synthesis of cyclic acetals comprises reacting at least one carbonyl-function compound selected from aldehydes, ketones, and/or linear acetals, on a polyol in a concentrated aqueous solution exceeding 20 wt % in a reactor containing an acidic catalyst. The carbonyl-function compound is selected so that the cyclic acetal obtained has a water solubility lower than 20000 mg/kg. During the catalytic reaction for the cyclic acetal synthesis, at least one portion of the organic phase containing the cyclic acetal is separated. The acidic catalysis is either homogeneous when using a water-soluble strong acid, or heterogeneous when using a solid acid such as a resin, a zeolite, or any appropriately acidified solid. The extractive reaction method can be used for obtaining high conversions and selectivity. | 04-22-2010 |
| 549373000 | Nitrogen attached indirectly to the hetero ring by nonionic bonding | 4 |
| 20090069579 | PROCESS AND COMPOUND - A process for preparing intermediate compounds useful in the preparation of statins. The process is particularly useful for the preparation of atorvastatin. The process involves the reduction of two ketone groups at the same time using either a chiral transition metal catalyst or an enzyme based system. | 03-12-2009 |
| 20110263877 | Cycloalkylmethylamines - The present invention provides novel cycloalkylmethylamine analogs, and methods of preparing cycloalkylmethylamine analogs. The present invention also provides methods of using cycloalkylmethylamine analogs and compositions of cycloalkylmethylamine analogs. The pharmaceutical compositions of the compounds of the present invention can be advantageously used for treating and/or preventing obesity and obesity related co-morbid indications. | 10-27-2011 |
| 20120016139 | MICROENCAPSULATED CATALYST - The present invention relates to a catalyst system. In particular the invention relates to a catalyst in the form of metal or an alloy that is encapsulated within a polymer shell or matrix. More specifically the invention is directed towards reactive catalytic metals that may be pyrophoric or otherwise reactive in air and/or susceptible to oxidation. In particular, the invention is concerned with catalysts based on nickel. | 01-19-2012 |
| 20120309989 | CONTINUOUS PROCESS FOR THE PRODUCTION OF BETA-KETO ESTERS BY CLAISEN CONDENSATION - The invention concerns A continuous process for the production of compounds having the general formula (6): | 12-06-2012 |
| 549374000 | Chalcogen attached indirectly to the hetero ring by nonionic bonding | 15 |
| 20100317878 | PROCESS FOR PRODUCTION OF FLAKE-LIKE DRIED 2-(5-ETHYL-5-HYDROXYMETHYL-1,3-DIOXAN-2-YL)-2-METHYLPROPAN-1-OL - A method for producing flake-like dried DOG by making DOG containing from 10 to 50% by mass of a liquid go through a continuous melt-drying step of a specified condition and then making it go through, as a next step, a vacuum-drying step of a specified condition or a ventilation-drying step of a specified condition while holding a molten state thereof, to obtain DOG in which the liquid in DOG is reduced to not more than 0.5% by mass (dried DOG), and flaking the obtained dried DOG in a flake production step. | 12-16-2010 |
| 20110152544 | PROCESS FOR THE PREPARATION 2-SUBSTITUTED DERIVATIVES OF ESTRONE AND ESTRADIOL - The invention provides a process for the preparation of 2-substituted-derivatives of estrone and estradiol comprising
| 06-23-2011 |
| 20110269976 | GLYCOL COMPOUND HAVING DIOXANE STRUCTURE AND METHOD FOR PRODUCING THE SAME - Disclosed is a glycol compound which is useful as a raw material and an intermediate for synthetic resins, additives for synthetic resins, medicines, cosmetics, food additives, surfactants and the like, further disclosed is a method for producing the compound. | 11-03-2011 |
| 20110275840 | GLYCOL COMPOUND HAVING DIOXANE STRUCTURE AND METHOD FOR PRODUCING THE SAME - Disclosed is a glycol compound which is useful as a raw material and an intermediate for synthetic resins, additives for synthetic resins, medicines, cosmetics, food additives, surfactants and the like, further disclosed is a method for producing the compound. | 11-10-2011 |
| 20110282076 | ALCOHOL COMPOUND HAVING DIOXANE STRUCTURE AND PROCESS FOR PRODUCING SAME - Disclosed is an alcohol compound which is useful as a raw material and an intermediate for paints, adhesives, medicines, cosmetics, food additives, surfactants and the like, further disclosed is a method for producing the above compound. | 11-17-2011 |
| 20140288318 | Method for Recovering Di-Trimethylolpropane and Trimethylolpropane-Enriched Product Streams From the Side Streams of Trimethylolpropane Production - Process for obtaining ditrimethylolpropane and trimethylolpropane-enriched product streams from the high-boiling fractions and residues which are obtained in the distillative purification of trimethylolpropane includes three stage distillation characterized in that second and third stages are configured as thin film evaporators with a column attachment with the second stage facilitating trimethylopropane recovery and the third stage facilitating ditrimethylolpropane recovery. | 09-25-2014 |
| 20140296542 | Method for Recovering Di-Trimethylolpropane and Trimethylolpropane-Enriched Product Streams from the Side Streams of Trimethylolpropane Production - Process for obtaining ditrimethylolpropane and trimethylolpropane-enriched product streams from the high-boiling fractions and residues which are obtained in the distillative purification of trimethylolpropane, characterized in that these high-boiling fractions and residues are combined and a polar solvent is added to produce a solution and the solution is treated at a temperature of 120 to 280° C. and at a pressure of 2 to 25 MPa with hydrogen in the presence of a solid nickel catalyst and an acidic compound. After catalytic treatment, the solution is subjected to multi-stage distillation including with a thin film evaporator with a column attachment in order to recover ditrimethylolpropane and trimethylolpropane-enriched product streams. | 10-02-2014 |
| 20150315113 | POLYTHIOLS AS CIS/TRANS ISOMERIZATION CATALYSTS FOR UNSATURATED COMPOUNDS - The present invention relates to a process of a cis/trans isomerization of an unsaturated compound A being selected from the group consisting of unsaturated ketones, unsaturated ketals, unsaturated aldehydes, unsaturated acetals, unsaturated carboxylic acids, esters of an unsaturated carboxylic acid and amides of an unsaturated carboxylic acid using polythiol as cis/trans isomerization catalyst. It has been observed that the isomerization is very efficient and fast. | 11-05-2015 |
| 20160152589 | LIQUID CRYSTAL COMPOUND HAVING 2, 6-DIFLUOROPHENYL ETHER STRUCTURE AND LIQUID CRYSTAL COMPOSITION THEREOF | 06-02-2016 |
| 20160159765 | LIQUID CRYSTAL COMPOUND HAVING 2, 6-DIFLUOROPHENYLETHER STRUCTURE, AND LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME - The present invention relates to a compound having a 2,6-difluorophenylether structure useful as organic electronic materials, pharmaceuticals and agrochemicals, and in particular, liquid crystal display device materials. | 06-09-2016 |
| 20160251388 | SULFOXIDATION CATALYSTS AND METHODS FOR THEIR PREPARATION AND USE | 09-01-2016 |
| 549375000 | The chalcogen, X, is in a -C(=X)- group | 4 |
| 20100004470 | 4-((PHENOXYALKYL)THIO)-PHENOXYACETIC ACIDS AND ANALOGS - The invention features 4-((phenoxyalkyl)thio)-phenoxyacetic acids and analogs, compositions containing them, and methods of using them as PPAR delta modulators to treat or inhibit the progression of, for example, dyslipidemia. | 01-07-2010 |
| 20120323024 | KETAL ESTERS OF OXOCARBOXYLIC ACIDS AND PROCESS OF MAKING - A ketal ester of an oxocarboxylic acid and a process to make the same, where the ketal ester is of Structure (I): wherein a is 0 or an integer from 1 to 12; n is 0 or 1; R | 12-20-2012 |
| 20140051869 | CONTINUOUS PROCESS FOR THE PRODUCTION OF BETA-KETO ESTERS BY CLAISEN CONDENSATION - A continuous process for producing compounds having the general formula (6) is provided: | 02-20-2014 |
| 20150119586 | METHOD FOR PRODUCING A SUBSTITUTED BENZOIC ACID COMPOUND - To provide an industrial method for producing a substituted benzoic acid compound useful as an intermediate of pharmaceutical and agricultural chemicals with high purity and high yield. | 04-30-2015 |
| 549377000 | The ring oxygens are in the 1,4-positions of the hetero ring (e.g., 1,4 dioxane, etc.) | 5 |
| 20090131689 | TRICYCLIC AROMATICS AND LIQUID-CRYSTALLINE MEDIUM - The invention relates to tricyclic aromatics of the general formula I | 05-21-2009 |
| 20100004471 | PURIFICATION OF P-DIOXANONE - The present disclosure provides methods for purifying p-dioxanone. In embodiments, crude p-dioxanone may be contacted with at least one isocyanate-functionalized scavenger. The at least one isocyanate-functionalized scavenger may react with hydroxyl compounds present with the crude p-dioxanone to form reaction products, in embodiments polyurethanes and/or polyureas, which may then be removed. The p-dioxanone thus obtained is of greater purity than the starting crude p-dioxanone. | 01-07-2010 |
| 549378000 | Chalcogen attached directly or indirectly to the hetero ring by nonionic bonding | 3 |
| 549379000 | Plural chalcogens bonded directly to the hetero ring | 3 |
| 20090156840 | Production of cyclic diesters of alpha-hydroxyacids - The raw material used in most process for the production of cyclic diesters of alpha-hydroxyacids, such as Lactide and Glycolide, is a 10% solution of Hydroxyacid. During the evacuation of the solution and condensation reaction water, the organic molecules may be damaged. | 06-18-2009 |
| 20100298578 | Catalyst For Direct Conversion Of Esters Of Lactic Acid To Lactide And The Method For Producing Lactide Using The Same - The present disclosure discloses a catalyst for directly producing a lactide which is a cyclic ester used as a monomer for polylactides, and a method for directly producing a lactide using the catalyst, the method including the transesterification reaction between two molecules of an ester of lactic acid or a mixture containing the ester of lactic acid with a small amount of lactic acid and oligomer of lactic acid under an inert environment in the presence of a titanium-based catalyst or a catalyst mixture containing the titanium-based catalyst so as to produce lactide while simultaneously removing an alcohol (ROH) generated as a by-product. As compared to a conventional commercialized process, since the method for producing a lactide in accordance with the present disclosure is a novel process capable of directly producing the lactide from the ester of lactic acid, energy consumption is low and the lactide can be produced through a simple process showing a high yield while maintaining optical property (D-form or L-form optical isomer). | 11-25-2010 |
| 20120330035 | HYDROTHERMOLYSIS OF MONO- AND/OR OLIGOSACCHARIDES IN THE PRESENCE OF A POLYALKYLENE GLYCOL ETHER - The present invention relates to a method for the hydrothermolysis of a mono- and/or oligosaccharide-comprising composition which in addition comprises at least one monoalkyl and/or dialkyl ether of a polyalkylene glycol, and also relates to a hydrothermolysis device. | 12-27-2012 |
