| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 546339000 | Chalcogen attached indirectly to the six-membered hetero ring by nonionic bonding (e.g., sulfato betaines, etc.) | 25 |
| 20100168436 | PROCESS FOR THE PREPARATION OF 2-SUBSTITUTED-5-(1-ALKYLTHIO)ALKYLPYRIDINES - 2-Substituted-5-(1-alkylthio)alkylpyridines are produced efficiently and in high yield from a non-pyridine source by cyclization. | 07-01-2010 |
| 20100168437 | PROCESS FOR THE PREPARATION OF 2-SUBSTITUTED-5-(1-ALKYLTHIO)ALKYLPYRIDINES - 2-Substituted-5-(1-alkylthio)alkylpyridines are produced efficiently and in high yield by cyclization and thioalkylation. | 07-01-2010 |
| 20110040098 | Organoactinide-, Organolanthanide-, and OrganoGroup-4-Mediated Hydrothiolation of Terminal Alkynes with Aliphatic, Aromatic and Benzylic Thiols - An efficient and highly Markovnikov selective organoactinide-, organolanthanide-, and organozirconium-catalyzed addition of aryl, benzyl, and aliphatic thiols to terminal alkynes is described. The corresponding vinyl sulfides are produced with little or no side-products. | 02-17-2011 |
| 20120142933 | PROCESS FOR THE PREPARATION OF2-TRIFLUOROMETHYL-5-(1-SUBSTITUTED)ALKYLPYRIDINES - 2-Trifluoromethyl-5-(1-substituted)alkylpyridines are produced efficiently and in high yield from an 4-alkoxy-1,1,1-trifluorobut-3-en-2-one by a condensation and a cyclization reaction. Both reactions are performed in the same nonpolar solvent without isolation and purification of intermediates. | 06-07-2012 |
| 20140142319 | ORGANOACTINIDE-, ORGANOLANTHANIDE-, AND ORGANOGROUP-4-MEDIATED HYDROTHIOLATION OF TERMINAL ALKYNES WITH ALIPHATIC, AROMATIC AND BENZYLIC THIOLS - An efficient and highly Markovnikov selective organoactinide-, organolanthanide-, and organozirconium-catalyzed addition of aryl, benzyl, and aliphatic thiols to terminal alkynes is described. The corresponding vinyl sulfides are produced with little or no side-products. | 05-22-2014 |
| 20150057449 | NONPOLAR PHASE-SOLUBLE METATHESIS CATALYSTS - One embodiment of the invention provides polyisobutylene (PIB) oligormers that are end-functionalized with ruthenium (Ru) catalysts. Such nonpolar catalysts can be dissolved in nonpolar solvents such as heptane, or any other nonpolar solvent that is otherwise not latently biphasic (i.e., if two or more solvent components are present, they remain miscible with each other throughout the entire reaction process, from the addition of substrate through to the removal of product). Substrate that is dissolved in the nonpolar solvent with the catalyst is converted into product. The lower solubility of the product in the nonpolar solvent renders it easily removable, either by extraction with a more polar solvent or by applying physical means in cases where the product precipitates from the nonpolar solvent. In this manner the catalysts are recycled; since the catalysts remain in the nonpolar solvent, a new reaction can be initiated simply by dissolving fresh substrate into the nonpolar solvent. | 02-26-2015 |
| 546340000 | The chalcogen, X, is in a -C(=X)- group | 8 |
| 20110077407 | Functionalized Polymers Using Protected Thiols - A process for the preparation of functional molecules using the thiol-ene coupling reaction and a process for the preparation of protected functional thiols, specifically thioesters is provided. The methods may be used to make functional polymers and other molecules. The method of making a functionalized polymer using a thiol-ene reaction comprises: providing a functionalized thioester having the following formula: | 03-31-2011 |
| 20140128613 | A PROCESS FOR PREPARATION OF INTERMEDIATES OF DONEPEZIL HYDROCHLORIDE - The present invention provides a process for the preparation of key intermediate for the synthesis 5,6-dimethoxy-2-[[1-(phenylmethyl)-4-piperidinyl]methyl]-1-indanone hydrochloride (donepezil hydrochloride). The present invention particularly provides a process for the preparation of 5,6-dimethoxy-2-(4-pyridylmethylene)-1-indanone comprising condensation of 5,6-dimethoxy-1-indanone with 4-pyridinecarboxaldehyde using an alkali metal hydroxide as a mild base in the presence of demineralized water as a solvent at a temperature in the range of 15° C. to 45° C. to yield 5,6-dimethoxy-2-(4-pyridylmethylene)-1-indanone, which is subsequently benzylated using benzyl bromide in the presence of solvent at a reflux temperature to yield 1-benzyl-4-[(5,6-dimethoxy-1-indanone-2-yl)methylene]pyridinium bromide. | 05-08-2014 |
| 20140206882 | VERY EFFICIENT PROCESS FOR PREPARING AN INTERMEDIATE OF ETORICOXIB - The present invention relates to an efficient process for preparing 1-(6-methylpyridin-3-yl)-2-[4-(methylsulfonyl)phenyl]ethanone, an intermediate of the synthesis of Etoricoxib. Water is employed as reaction medium. | 07-24-2014 |
| 546341000 | The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same of diverse chalcogens | 5 |
| 20080221333 | Process for Preparing Beta-Ketoester Compounds - The present invention relates to a process for preparing a beta-keto ester compound of formula (1), which is an intermediate for the synthesis of quinolone antibiotics. Particularly, the present invention is characterized by the reaction of an organo nitrile compound with a salt of mono-alkyl malonate in the presence of metal salt, and so the reaction is easy to control due to its endothermic nature, and is devoid of lachrymatory reagents with excellent reproducibility. Subsequent in situ hydrolysis in the presence of aqueous acid solution provided the compound of formula (1). | 09-11-2008 |
| 546342000 | Additional ring containing | 4 |
| 20120271055 | ARYL COMPOUNDS AS PPAR LIGANDS AND THEIR USE - The present invention relates to a compound as a peroxisome proliferator activated receptor (PPAR) activator and a hydrate, a solvate, a stereoisomer and a pharmaceutically acceptable salt thereof, and a pharmaceutical composition, a cosmetic composition, a muscle strengthening agent, a memory improving agent, a therapeutic agent for dementia and Parkinson's disease, a functional food and a feed composition containing the same. | 10-25-2012 |
| 20130190504 | Functionalized Polymers Using Protected Thiols - A process for the preparation of functional molecules using the thiol-ene coupling reaction and a process for the preparation of protected functional thiols, specifically thioesters is provided. The methods may be used to make functional polymers and other molecules. The method of making a functionalized polymer using a thiol-ene reaction comprises: providing a functionalized thioester having the following formula: | 07-25-2013 |
| 20130296573 | System for Controlling the Reactivity of Boronic Acids - A protected organoboronic acid includes a boron having an sp | 11-07-2013 |
| 20160002268 | ZINC COMPLEX - A zinc complex characterized in exhibiting an octahedral structure and being configured from repeating units represented by general formula (I): | 01-07-2016 |
| 546343000 | The six-membered hetero ring and another ring bonded directly to the same carbon | 1 |
| 20120142934 | METHOD FOR SYNTHESIS OF SECONDARY ALCOHOLS - A method for synthesis of secondary alcohols is provided for pharmaceutical secondary alcohol by addition of organoboronic acids with aldehydes in presence of the cobalt ion and bidentate ligands as the catalyst. In addition, an enantioselective synthesis method for secondary alcohols is also herein provided in the present invention. The present invention has advantages in using less expensive cobalt ion and commercially available chiral ligands as the catalyst, wide scope of organoboronic acids and aldehydes compatible with this catalytic reaction and achieving excellent yields and/or enantiomeric excess. | 06-07-2012 |
| 546344000 | The chalcogen is in an -OH or -OM group (M is Group IA or Group IIA light metal) | 10 |
| 20090326235 | Solutions of anhydrous lanthanide salts and its preparation - The present invention relates to anhydrous solutions of MX | 12-31-2009 |
| 20100063294 | ALCOHOL PRODUCTION METHOD BY REDUCING ESTER OF LACTONE WITH HYDROGEN - Provided is an alcohol production method comprising the step of reducing an ester or a lactone with hydrogen to produce a corresponding alcohol without addition of a base compound by using, as a catalyst, a ruthenium complex represented by the following general formula (1): | 03-11-2010 |
| 20100286401 | Ligand Iron Catalysts For Selective Hydrogenation - Disclosed are iron ligand catalysts for selective hydrogenation of aldehydes, ketones and imines. A catalyst such as dicarbonyl iron hydride hydroxycyclopentadiene) complex uses the OH on the five member ring and hydrogen linked to the iron to facilitate hydrogenation reactions, particularly in the presence of hydrogen gas. | 11-11-2010 |
| 20110201819 | METHOD FOR PRODUCING ALCOHOL COMPOUND - Disclosed is a practical method for efficiently producing an alcohol compound by hydrogenating an aldehyde by using a homogeneous copper catalyst which is an easily-available low-cost metal species. Specifically disclosed is a method for producing an alcohol compound, which is characterized in that a hydrogenation reaction of an aldehyde compound is performed in the presence of a homogeneous copper catalyst and a diphosphine compound. | 08-18-2011 |
| 20110201820 | METHOD FOR PRODUCING ALCOHOL COMPOUND - Disclosed is a practical method for efficiently producing an alcohol compound by hydrogenating an aldehyde by using a homogeneous copper catalyst which is an easily-available low-cost metal species. Specifically disclosed is a method for producing an alcohol compound, which is characterized in that a hydrogenation reaction of an aldehyde compound is performed in the presence of a homogeneous copper catalyst, a monophosphine compound and an alcohol selected from the group consisting of primary alcohols, secondary alcohols and mixtures of those. | 08-18-2011 |
| 20120116091 | DERIVATIVES OF 1-PHENYL-2-PYRIDINYL ALKYL ALCOHOLS AS PHOSPHODIESTERASE INHIBITORS - Derivatives of 1-phenyl-2-pyridinyl alkyl alcohols are useful as inhibitors of the phosphodiesterase 4 (PDE4) enzyme. | 05-10-2012 |
| 20130053574 | ASYMMETRIC HYDROGENATION METHOD FOR KETONE COMPOUND - The invention relates to an asymmetric hydrogenation method for ketone compounds, comprising the step of: under hydrogen atmosphere, in the presence of an in situ catalyst derived from a chiral ligand and a ruthenium salt, adding a ketone compound and a base into a second solvent to carry out an asymmetric hydrogenation for the ketone compound. The invention can obtain a conversion of 100% and a highest asymmetric inducement effect of 99.7% for the ketone compound. The invention has the advantages including simple procedure, high conversion and selectivity, good atom economy and good prospect of industrial application. | 02-28-2013 |
| 20130303774 | Method For Producing Beta-Fluoroalcohol - A production method of a β-fluoroalcohol includes performing a reaction of an α-fluoroester with hydrogen gas (H | 11-14-2013 |
| 20130303775 | PROCESS FOR PRODUCTION OF AROMATIC ALCOHOL OR HETEROCYCLIC AROMATIC ALCOHOL - A process of production of an aromatic alcohol or a heterocyclic aromatic alcohol, containing a step of reacting an aromatic amine or a heterocyclic aromatic amine having an aromatic ring or a heterocyclic aromatic ring having thereon at least one substituent —CHR | 11-14-2013 |
| 20160130501 | ANTIOXIDANT HAVING DIFLUOROMETHOXY GROUP, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE - [Subject] One object of the invention is a compound useful as an antioxidant. Other objects include a liquid crystal composition having high stability to ultraviolet light and heat, and a device that hardly undergoes a decrease in voltage holding ratio even after a long-time use. | 05-12-2016 |
