Patent application number | Description | Published |
20080306287 | Process for Preparing Tetrahydropyran-4-Carboxylic Acid Compound - The present invention is to provide a process for preparing tetrahydropyran-4-carboxylic acid represented by the formula (1): | 12-11-2008 |
20090171083 | PROCESS FOR PRODUCING 4-AMINOQUINAZOLINE COMPOUND - A 4-aminoquinazoline derivative can be obtained by the steps of reacting quinazolin-4-one or its derivative with a chlorinating agent in a first organic solvent in the presence of an organic base, and subsequently reacting the reaction product with an amine compound represented by the formula R | 07-02-2009 |
20090253909 | PROCESS FOR PREPARATION OF 6, 7-BIS (2-METHOXYETHOXY) QUINAZOLIN-4-ONE - 6,7-Bis(2-methoxyethoxy)quinazolin-4-one of formula (5) useful in synthesis of an anti-cancer drug can be prepared by a reaction of ethyl 2-amino-4,5-bis(2-methoxyethoxy)benzoate of formula (4) with an orthoformic acid in the presence of an ammonium acetate: | 10-08-2009 |
20090306380 | Process for preparing 4-amino-2-alkylthio-5-pyrimidinecarbaldehyde - Provided are a process for preparing a 4-amino-2-alkylthio-5-pyrimidinecarbaldehyde, which is industrially advantageous in that a 4-amino-2-alkylthio-5-pyrimidinecarbaldehyde can be prepared in high yield in a simple way, an intermediate used in the process, and a process for preparing the intermediate, which is industrially advantageous in that the intermediate can be prepared safely in high yield with ease. | 12-10-2009 |
20090306399 | METHOD FOR PRODUCING 1-SUBSTITUTED-5-ACYLIMIDAZOLE COMPOUND - Disclosed is a commercially suitable method for producing a 1-substituted-5-acylimidazole compound. A 1-substituted-5-acylimidazole compound is produced with a high position selectivity by reacting an N-substituted amidine compound or a salt thereof with a ketone compound in the presence of a base. | 12-10-2009 |
20100010233 | PROCESS FOR PREPARING IMIDAZOLIDIN-2,4-DIONE COMPOUND AND METHOD FOR ACQUIRING SOLID STATE 4,5-DIHYDROXY-2-IMIDAZOLIDINONE COMPOUND - An object of the present invention is to provide an industrially suitable process for preparing an imidazolidin-2,4-dione compound which is safe, simple and easy to prepare the imidazolidin-2,4-dione compound with high yield, which is a useful compound, for example, as a material for decomposing a harmful halogenated aromatic hydrocarbon compound such as dioxin, etc., an electroless silver plating solution for electronic parts, or a diazo copying material, etc. This object can be solved by a process for preparing an imidazolidin-2,4-dione compound which comprises subjecting a 4,5-dihydroxy-2-imidazolidinone compound, (1) to dehydration reaction in the presence of an acid catalyst(s); or (2) to reaction at 100 to 300° C. Or, it can be solved by a process for preparing an imidazolidin-2,4-dione compound which comprises reacting a mixed solution of a urea compound, glyoxal, and a base at 20 to 300° C. | 01-14-2010 |
20100099909 | POLYCYCLIC PENTAFLUOROSULFANYLBENZENE COMPOUND AND PROCESS FOR PRODUCING THE COMPOUND - A polycyclic pentafluorosulfanylbenzene compound represented by the following general formula (1) and a process for producing the polycyclic pentafluorosulfanylbenzene compound which comprises reacting a specific pentafluorosulfanylbenzene compound with a specific boronic acid compound are provided. The polycyclic pentafluorosulfanylbenzene compound is a novel compound and can be produced by the process industrially advantageously. | 04-22-2010 |
20100224826 | Dispersion Liquid Comprising Liquid Crystal-Compatible Particles, Paste Obtained Therefrom, and Mehtod for Preparing the Same - A task of the present invention is to provide a method for preparing a dispersion liquid comprising liquid crystal-compatible particles and a paste thereof, which is commercially advantageous in that a dispersion liquid comprising liquid crystal-compatible particles and a uniform liquid crystal-compatible particle paste can be obtained using a method which can easily achieve mass-production. | 09-09-2010 |