Patent application number | Description | Published |
20100029541 | METHOD OF RETAINING THE QUALITY OF 2-METHYL-3-(3,4-METHYLENEDIOXYPHENYL)PROPANAL AND PROCESS FOR PRODUCING THE SAME - The present invention relates to [1] a method for keeping a quality of 2-methyl-3-(3,4-methylenedioxyphenyl)propanal useful as a perfume, which comprises incorporating from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene in the 2-methyl-3-(3,4-methylenedioxyphenyl)propanal; [2] a process for producing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content range from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene; and [3] 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content range from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene. | 02-04-2010 |
20100121085 | 2-METHYL-3-(3,4-METHYLENEDIOXYPHENYL)PROPANAL, AND METHOD FOR PRODUCTION THEREOF - Disclosed are: (1) a method for producing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal, which comprises the step of providing a reaction mixture containing 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene by a process for reacting 1,2-methylenedioxybenzene with 2-methyl-3,3-diacetoxypropene or a process for reacting 1,2-methylenedioxybenzene, methacrolein and acetic anhydride with one another; subjecting the reaction mixture to hydrolysis or transesterification with an alcohol to provide a reaction mixture containing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal; and purifying by distilling the reaction mixture, wherein a high boiling point compound contained in the reaction mixture is removed by a specific procedure; and (2) 2-methyl-3-(3,4-methylenedioxyphenyl)-propanal produced by the method, which has an acetic acid content of a less than 40 ppm, is useful as a perfume, and has a high purity. | 05-13-2010 |
20110301361 | METHOD OF RETAINING THE QUALITY OF 2-METHYL-3-(3,4-METHYLENEDIOXYPHENYL) PROPANAL AND PROCESS FOR PRODUCING THE SAME - The present invention relates to [1] a method for keeping a quality of 2-methyl-3-(3,4-methylenedioxyphenyl)propanal useful as a perfume, which comprises incorporating from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene in the 2-methyl-3-(3,4-methylenedioxyphenyl)propanal; [2] a process for producing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content range from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene; and [3] 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content range from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene. | 12-08-2011 |
20130046101 | METHOD OF RETAINING THE QUALITY OF 2-METHYL-3-(3,4-METHYLENEDIOXYPHENYL)PROPANAL AND PROCESS FOR PRODUCING THE SAME - The present invention relates to [1] a method for keeping a quality of 2-methyl-3-(3,4-methylenedioxyphenyl)propanal useful as a perfume, which comprises incorporating from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene in the 2-methyl-3-(3,4-methylenedioxyphenyl)propanal; [2] a process for producing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content range from to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene; and [3]2-methyl-3-(3,4-methylenedioxyphenylpropanal having a content range from 50 to 3000 ppm of of 1-acetyl-3,4-methylenedioxybenzene. | 02-21-2013 |
Patent application number | Description | Published |
20080234488 | Method of Deuteration Using Mixed Catalyst - The subject of the present invention is to provide a method for deuteration, which can obtain a compound having an aromatic ring and/or a heterocyclic ring at an improved deuteration ratio. The present invention relates to a method for deuteration of a compound having an aromatic ring and/or a heterocyclic ring, comprising reacting the compound having an aromatic ring and/or a heterocyclic ring with a heavy hydrogen source in the presence of an activated mixed catalyst of not less than two kinds of catalysts selected from among a palladium catalyst, a platinum catalyst, a rhodium catalyst, an iridium catalyst, a ruthenium catalyst, a nickel catalyst and a cobalt catalyst. | 09-25-2008 |
20080269425 | Novel Catalyst - The present invention is directed to provide a catalyst for reduction, which is capable of reducing even mono-substituted alkynes to alkenes and does not require the coexistence (combined use) of a toxic compound, and a method for reduction from alkynes to alkenes using the catalyst; and relates to a palladium-supported polyethyleneimine compound obtained by contacting a polyethyleneimine, a palladium compound and hydrogen gas in an oxygen-free state, a method for producing the above palladium-supported polethyleneimine compound, a catalyst for reduction comprising the above palladium-supported polyethyleneimine compound, and a method for reducing from alkynes to alkenes characterized by contacting an alkyne and hydrogen in the presence of a palladium-supported polyethyleneimine compound, which is obtained by reacting a polyethyleneimine, a palladium compound and hydrogen gas in an oxygen-tree state. | 10-30-2008 |
20130150623 | PROCESS FOR PRODUCING HYDROGEN OR HEAVY HYDROGENS, AND HYDROGENATION (PROTIATION, DEUTERATION OR TRITIATION) OF ORGANIC COMPOUNDS USING SAME - An object is to provide a process for providing hydrogen or heavy hydrogens conveniently without the necessity of large-scale equipment and a process capable of performing hydrogenation (protiation, deuteration or tritiation) reaction conveniently without the use of an expensive reagent and a special catalyst. The production process includes a process for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, and a process for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, containing subjecting an organic compound and water or heavy water to mechanochemical reaction in the presence of a catalyst metal. | 06-13-2013 |
20140363369 | PROCESS FOR PRODUCING HYDROGEN OR HEAVY HYDROGENS, AND HYDROGENATION (PROTIATION, DEUTERATION OR TRITIATION) OF ORGANIC COMPOUNDS USING SAME - An object is to provide a process for providing hydrogen or heavy hydrogens conveniently without the necessity of large-scale equipment and a process capable of performing hydrogenation (protiation, deuteration or tritiation) reaction conveniently without the use of an expensive reagent and a special catalyst. The production process includes a process for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, and a process for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, containing subjecting an organic compound and water or heavy water to mechanochemical reaction in the presence of a catalyst metal. | 12-11-2014 |
20150025264 | METHOD FOR PRODUCING HYDROGEN OR HEAVY HYDROGENS, METHOD FOR PRODUCING HYDROGENATED (PROTIATED, DEUTERATED OR TRITIATED) ORGANIC COMPOUND, METHOD FOR HYDROGENATING (PROTIATING, DEUTERATING OR TRITIATING) ORGANIC COMPOUND, METHOD FOR DEHALOGENATING ORGANIC COMPOUND HAVING HALOGEN, AND BALL FOR USE IN MECHANOCHEMICAL REACTION - Objects are to provide efficient methods for producing hydrogen or heavy hydrogens and for hydrogenating (protiating, deuterating or tritiating) an organic compound, and to provide an equipment and the like used therefor. A method for producing hydrogen or heavy hydrogens, containing subjecting water or heavy water to mechanochemical reaction in the presence of a catalyst metal, in which an energy density of a rotational acceleration of 75 G or more is applied to water or heavy water for 25 minutes or more, a method for producing a hydrogenated (protiated, deuterated or tritiated) organic compound, a method for hydrogenating (protiating, deuterating or tritiating) an organic compound, a method for dehalogenating an organic compound having halogen, and a ball for mechanochemical reaction are provided. | 01-22-2015 |
Patent application number | Description | Published |
20090198182 | Member For Catheter's Position Verification Having Color Change Indicator And Catheter Having The Member For Catheter's Position Verification - The present invention provides a member ( | 08-06-2009 |
20090208586 | porous bioabsorbable material and method of producing the same - [Problems] To provide a thin film-shaped porous bioabsorbable material that is a dense structure in which the pore size average is small and the pore size is uniform and which further has a large maximum stress, in particular, a porous bioabsorbable material extremely useful as an adhesion preventing material. | 08-20-2009 |
20090319016 | PROCESS FOR PRODUCTION OF POROUS BODY AND USES THEREOF - A process for producing a porous body with different physical properties in desired regions is provided by pore forming treatment, not by bonding two or more materials made porous beforehand, with, for example, an adhesive. Raw materials are prepared, each of which contains a polymer and a raw material preparation solvent. At least two types of the raw materials having different compositions are prepared. Thereafter, the respective raw materials are frozen into desired shapes to form frozen bodies thereof. The frozen bodies thus formed are brought into contact with each other to form an assembly thereof, the assembly is exposed to a condition under which the frozen bodies begin to melt, and the assembly is then freeze-dried. Thus, a porous body having regions different in physical properties can be obtained. Such a porous body can be used as, for example, an adhesion inhibitory material or a scaffold for a cell culture. | 12-24-2009 |
20100137811 | CELL HANDLING DEVICE, TISSUE REGENERATION COMPOSITION, AND TISSUE REGENERATION METHOD - A syringe-type cell handling device for storing and subsequently transplanting, into a living body, cells harvested from a living body or cells obtained by culturing harvested cells. The syringe-type cell handling device includes a vessel having a closed mouth and being at least partially composed of a main body, and a plunger that is slidably insertable into the main body such that the handling medium can be transplanted into a living body by applying a pushing force to the plunger. At least a part of the device that contacts the fluid handling medium, when the vessel holds the handling medium, is a gas permeable region for passing a quantity of gas necessary for survival of the cells. It is preferable that at least a part of the storage vessel inner wall in contact with the cells is formed from a cell non-adhesive material. | 06-03-2010 |