Patent application number | Description | Published |
20100041917 | PROCESS FOR PREPARATION OF CARBONYL COMPOUND AND PRO-OXIDANT FOR PREPARATION OF CARBONYL COMPOUND - The invention provides a process for the preparation of a carbonyl compound in high efficiency by oxidizing an alcohol. The process for the preparation of a carbonyl compound of the present invention includes a step of oxidizing an alcohol in the presence of a compound of the formula (I) or a derivative or a salt thereof, and an oxidant, | 02-18-2010 |
20100249431 | PROCESS FOR MANUFACTURING DISULFONIC ACID COMPOUND, ASYMMETRIC MANNICH CATALST, PROCESS FOR MANUFACTURING BETA-AMINOCARBONYL DERIVATIVE, AND NOVEL DISULFONATE - Hexamethylphosphoramide (HMPA) was added to a reaction vessel containing (R)-1,1′-binaphthyl-2,2′-dithiol and potassium hydroxide. The vessel was purged with oxygen and stirred at 80° C. for 5 days under 7 atmospheres of oxygen. After being cooled to room temperature, the reaction product was purified to yield potassium (R)-1,1′-binaphthyl-2,2′-disulfonate. The (R)-1,1′-binaphthyl-2,2′-disulfonic acid obtained from the disulfonate and 2,6-diphenylpyridine were stirred in acetonitrile, and then the solvent was evaporated under reduced pressure. Subsequently, magnesium sulfate and distilled CH | 09-30-2010 |
20110319620 | METHOD FOR PRODUCING CARBOXYLIC ANHYDRIDE AND ARYLBORONIC ACID COMPOUND - When phthalic acid is heated in heptane under azeotropic reflux conditions in the presence of a catalytic amount of an arylboronic acid compound (such as 2,6-(diisopropylaminomethyl)phenylboronic acid or 2,6-bis(diisopropylaminomethyl)phenylboronic acid), phthalic anhydride is obtained in high yield. | 12-29-2011 |
20120323014 | METHOD FOR PRODUCING ALPHA-ACYLOXYCARBONYL COMPOUND AND NOVEL ALPHA-ACYLOXYCARBONYL COMPOUND - A method for producing an α-acyloxycarbonyl compound of the present invention includes performing an intermolecular reaction between a carboxylic acid and a carbonyl compound selected from the group consisting of ketones, aldehydes, and esters, which have a hydrogen atom at the α-position, using a hydroperoxide as an oxidizer and an iodide salt as a catalyst precursor, thereby introducing an acyloxy group derived from the carboxylic acid into the α-position of the carbonyl compound. | 12-20-2012 |
20130079543 | METHOD FOR PRODUCING beta-AMINOCARBONYL COMPOUND - An optically active β-aminocarbonyl compound is obtained by a Mannich reaction between an aldimine in which: nitrogen is protected and a malonic acid diester, in the presence of optically active BINOL and dialkyl magnesium (in which two alkyl groups are the same or different) in an amount 1 to 2 molar times the amount of the BINOL. | 03-28-2013 |
20130217898 | METHOD FOR MANUFACTURING ESTER - The present invention relates to a method for manufacturing an ester from a ketone or an aldehyde, which is a reactive substrate, by a Baeyer-Villiger oxidation reaction using hydrogen peroxide, and in this method, as a catalyst, M(BAr | 08-22-2013 |
20130338364 | IODOARENE DERIVATIVE, METHOD FOR MANUFACTURING OPTICALLY ACTIVE SPIROLACTONE COMPOUND BY USING THE SAME, AND METHOD FOR MANUFACTURING OPTICALLY ACTIVE CYCLOADDUCT - An optically active spirolactone compound is highly enantioselectively produced by using an iodoarene derivative which can be synthesized easily and which is not racemized easily. A hypervalent iodine compound precursor (iodoarene derivative) which was able to be designed flexibly was synthesized from 2,6-dihydroxyiodoarene by using 1,2-aminoalcohol as a chiral source in short steps, a hypervalent iodine compound was prepared in a reaction system (in situ) by using a catalyst quantity of the resulting precursor in the presence of a stoichiometric quantity of m-CPBA, and a spirolactonization reaction of 3-(1-hydroxy-2-naphthyl)propionic acid was induced. As a result, a corresponding spirolactone compound was obtained at a high enantiomeric excess. | 12-19-2013 |
20140088303 | PHOSPHORAMIDE COMPOUND, METHOD FOR PRODUCING THE SAME, LIGAND, COMPLEX, CATALYST AND METHOD FOR PRODUCING OPTICALLY ACTIVE ALCOHOL - Disclosed is a method for highly efficiently obtaining an optically active alcohol from a carbonyl compound highly enantioselectively. Also disclosed is a ligand used in such a method. Specifically, an optically active alcohol is obtained by reacting a carbonyl compound and an organozinc compound by using a ligand (L) shown below. | 03-27-2014 |