| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568458000 | Aldehyde reactant | 27 |
| 20080221366 | Method for the Hydrogenation of Mass Fluxes Containing Aldehyde - The present application relates to a process for reacting a composition I comprising at least one aldehyde with hydrogen in the presence of a catalyst in at least one main reactor and at least one postreactor, wherein at least 50% of the fresh hydrogen fed to the reaction system is fed into at least one postreactor. In a preferred embodiment, composition I comprises at least one further organic compound. | 09-11-2008 |
| 20090005604 | HIGH SHEAR PROCESS FOR THE PRODUCTION OF CHLORAL - Use of a high shear mechanical device incorporated into a process for the production of chloral as a reactor device is capable of decreasing mass transfer limitations, thereby enhancing the chloral production process. A system for the production of chloral from acetaldehyde and chlorine, the system comprising a reactor and an external high shear device the outlet of which is fluidly connected to the inlet of the reactor; the high shear device capable of providing a dispersion of chlorine gas bubbles within a liquid, the bubbles having an average bubble diameter of less than about 100 μm. | 01-01-2009 |
| 20090281358 | HETEROGENEOUS CHIRAL CATALYST - The invention provides a heterogeneous catalyst comprising a catalytic group coupled to a mesocellular siliceous foam support. The catalytic group is capable of catalysing a reaction selected from the group consisting of a Friedel-Craft reaction and a Diels-Alder reaction. | 11-12-2009 |
| 568459000 | Carbon to carbon unsaturation in the aldehyde prepared | 10 |
| 20100152494 | METHOD FOR SYNTHESIZING OPTICALLY ACTIVE CARBONYL COMPOUNDS - The present invention relates to a process for preparing optically active carbonyl compounds by asymmetrically hydrogenating α,β-unsaturated carbonyl compounds in the presence of optically active transition metal catalysts which are soluble in the reaction mixture and have at least one carbon monoxide ligand, the optically active catalyst which has at least one carbon monoxide ligand and is to be used in each case being prepared by pretreating a catalyst precursor with a gas mixture comprising carbon monoxide and hydrogen and the asymmetric hydrogenation being performed in the presence of carbon monoxide supplied additionally to the reaction mixture. | 06-17-2010 |
| 20110098508 | SYNTHETIC NAVEL ORANGEWORM PHEROMONE COMPOSITION AND METHODS RELATING TO PRODUCTION OF SAME - One or more embodiments of the invention are directed to the synthetic methods for making lepidopteran pheromones including navel orangeworm pheromones. The synthetic methods involve novel, efficient, and environmentally benign steps and procedures. | 04-28-2011 |
| 20120136176 | CATALYST FOR ASYMMETRIC HYDROGENATION AND METHOD FOR MANUFACTURING OPTICALLY ACTIVE CARBONYL COMPOUND USING THE SAME - The present invention provides a catalyst used for manufacturing an optically active carbonyl compound by selective asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which is insoluble in a reaction mixture, and a method for manufacturing the corresponding optically active carbonyl compound. Particularly, the invention provides a catalyst for obtaining an optically active citronellal useful as a flavor or fragrance, by selective asymmetric hydrogenation of citral, geranial or neral. The invention relates to a catalyst for asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which comprises: a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which the at least one metal is supported on a support; an optically active peptide compound; and an acid, and also relates to a method for manufacturing an optically active carbonyl compound using the same. | 05-31-2012 |
| 20130172626 | CATALYST AND PROCESS TO PRODUCE BRANCHED UNSATURATED ALDEHYDES - A continuous process and system for preparing branched aldehydes by reacting aldehyde with an acid polymeric catalyst absent any metal from Group VIII to produce a product having about 10 to 99.99% by weight branched unsaturated aldehyde and at least 92% selectivity of reaction to the branched aldehyde and recycling a portion of the product. | 07-04-2013 |
| 568460000 | Oxy or -COO- containing reactant | 1 |
| 20120142972 | SYNTHETIC NAVEL ORANGEWORM PHEROMONE COMPOSITION AND METHODS RELATING TO PRODUCTION OF SAME - One or more embodiments of the invention are directed to the synthetic methods for making lepidopteran pheromones including navel orangeworm pheromones. The synthetic methods involve novel, efficient, and environmentally benign steps and procedures. | 06-07-2012 |
| 568461000 | Aldehyde reacted with aldehyde | 5 |
| 20120190895 | PRODUCING ALPHA,BETA-UNSATURATED ALDEHYDES BY MEANS OF A REACTION MIXING PUMP - The invention relates to a method for producing α,β-unsaturated aldehydes, wherein a catalytic aldol condensation of charged aldehydes is carried out in the presence of an aqueous base within a continuous-flow reactor. The aim of the invention is to provide a method for aldolizing aldehydes that can be carried out in a particularly economical manner. The aim is achieved by using a reaction mixing pump as the reactor. | 07-26-2012 |
| 20120283479 | METHOD FOR SYNTHESIZING ACROLEIN FROM GLYCEROL - The present invention relates to a process for synthesizing acrolein, coupling the dehydration of glycerol into acrolein with a reaction for aldol condensation of acetaldehyde, produced in the form of an impurity during the dehydration, by means of formaldehyde. | 11-08-2012 |
| 20140005441 | Method for Carrying Out Multiphase Aldol Condensation Reactions to Give Mixed a, beta-Unsaturated Aldehydes | 01-02-2014 |
| 20150299081 | Production of Mixed Aldol Products from the Products of Hydroformylation Reactions - A method for producing mixed aldol products from the products of hydroformylation reactions. In one embodiment, the method comprises mixing hydroformylation reaction products comprising aldehydes with a catalyst inside a reactor to create a mixture. The method also includes agitating the mixture at a temperature in a range of between about 200° F. to about 275° F. to create a reacted mixture. The reacted mixture is then cooled in the reactor to create an organic phase and an aqueous phase. The organic phase is pumped out of the reactor and may then be transferred to a distillation tower. The organic phase may be distilled until any mixed aldol products are isolated, wherein the mixed aldol products may be subsequently removed. | 10-22-2015 |
| 20160159719 | METHOD OF REGULATING THE WATER CONTENT IN A CONTINUOUS METHOD FOR PRODUCING METHACROLEIN - The present invention concerns regulating the water content in a process for production of methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for production of methacrylic acid, methyl methacrylate or else of active, aroma or flavour chemicals. The present invention is particularly concerned with regulating the water content in a process for production of methacrolein from formaldehyde and propionaldehyde via a Mannich condensation. | 06-09-2016 |
| 568462000 | Gaseous hydrogen reactant | 2 |
| 20120323043 | METHOD FOR HYDROGENATING 1,2-UNSATURATED CARBONYLIC COMPOUNDS - Disclosed is a method of hydrogenating an 1,2-unsaturated carbonylic compound to obtain the corresponding saturated carbonylic compound in the presence of a palladium catalyst with heterogeneous distribution of palladium. | 12-20-2012 |
| 20180022676 | SINGLE-STEP CONVERSION OF N-BUTYRALDEHYDE TO 2-ETHYLHEXANAL | 01-25-2018 |
| 568463000 | Aldehyde reacted with aldehyde (e.g., aldol condensation, etc.) | 7 |
| 20110021845 | PREPARATION OF ALCOHOLS FROM ALDEHYDES - Alcohols are prepared from aldehydes employing a bifunctional catalyst; the aldehydes are first condensed and the products of condensation thereof are then converted into alcohols by hydrogenation. | 01-27-2011 |
| 20120123169 | PROCESS FOR PREPARING ALPHA,BETA-UNSATURATED C10-ALDEHYDES - The invention relates to a method for continuously producing α,β-unsaturated C | 05-17-2012 |
| 568464000 | Aldehyde reacted with diverse aldehyde | 5 |
| 20100113836 | METHOD FOR PRODUCING HYDROXY PIVALIN ALDEHYDE AND NEOPENTYL GLYCOL - The preparation of hydroxypivalaldehyde is effected by aldolizing isobutyraldehyde with formaldehyde and subsequently working up the resulting reaction effluent by distillation, wherein the reaction effluent is fed to a distillation column which is operated at a top pressure in the range from 0.5 to 1.5 bar and in which a two-stage condensation is provided in the top region, in which the vapors are first conducted into a partial condenser operated at a temperature in the range from 50 to 80° C., whose condensate is recycled at least partly into the distillation column, and in which the vapors uncondensed in the partial condenser are fed to a downstream condenser operated at a temperature in the range from −40 to +30° C., whose condensate is at least partly discharged. | 05-06-2010 |
| 20140155656 | Process for the Catalytic Aldol Condensation of Aldehydes - The present invention relates to a process for the catalytic aldol condensation of aldehydes, in particular for preparing α,β-unsaturated aldehydes, in a multiphase reactor. | 06-05-2014 |
| 20140213827 | PREPARATION OF HYDROXY ALDEHYDES - An improved process for preparing hydroxy aldehydes, such as hydroxypivaldehyde, is provided. Specifically, the process employs an alkaline additive for separating by-product amine salts from a hydroxy aldehyde and other reaction products formed in the process of preparing a hydroxy aldehyde using an amine catalyst. | 07-31-2014 |
| 20150291496 | METHOD FOR PREPARING METHYLOL ALKANAL - Disclosed is a method of preparing methylol alkanal. According to the present invention, a yield of methylol alkanal may be improved without using formaldehyde in an excess amount of a theoretical minimum molar ratio or more, formaldehyde wastewater may be reduced, and the amount of formaldehyde remainder, which may act as a hydrogenation catalyst poison, comprised in the methylol alkanal is decreased when the prepared methylol alkanal is hydrogenated resulting in improvement in efficiency of the hydrogenation. | 10-15-2015 |
| 20150368171 | PROCESS FOR PRODUCING POLYOLS - A process for producing polyols (such as neopentyl glycol) is disclosed which comprises reacting formaldehyde and another aldehyde in the presence of a trialkylamine catalyst and a base promoter to form an Aldol condensation reaction product. The base promoter improves removal of nitrogen containing salts prior to hydrogenation of the hydroxy aldehyde to produce the polyol. The improved process also reduces trialkylamine catalyst usage, improves trialkylamine catalyst recovery, and reduces nitrogen-containing salts prior to hydrogenation. | 12-24-2015 |
| 568465000 | Oxy or -COO- containing reactant | 5 |
| 20090069604 | PROCESS FOR HYDROGENATING METHYLOLALKANALS - A process for catalytically hydrogenating methylolalkanals of the general formula | 03-12-2009 |
| 20090105506 | Process for Producing 3,3,3-Trifluoropropionaldehyde - There is provided a process for producing 3,3,3-trifluoropropionaldehyde, including the step of hydrolyzing a benzyl vinyl ether of the formula [1] in the presence of a catalyst selected from the group consisting of Arrhenius acids and Lewis acids, | 04-23-2009 |
| 20110028764 | PROCESS FOR THE SELECTIVE PREPARATION OF ACETALDEHYDE FROM ACROLEIN AND ONE OR MORE AMMONIUM SALTS DISSOLVED IN WATER - The present invention relates to a process for the selective preparation of acetaldehyde, characterized in that acrolein and one or more ammonium salts dissolved in water are reacted continuously under high pressures and at temperatures of 300-400° C. | 02-03-2011 |
| 20110034737 | Water-Soluble Polymer Alkanals - The present invention is directed to alkanal derivatives of water-soluble polymers such as poly(ethylene glycol), their corresponding hydrates and acetals, and to methods for preparing and using such polymer alkanals. The polymer alkanals of the invention are prepared in high purity and exhibit storage stability. | 02-10-2011 |
| 20140357900 | PREPARATION METHOD OF LYCOPENE INTERMEDIATE 3-METHYL-4,4-DIALKOXY-1-BUTALDEHYDE - Disclosed is a preparation method of the lycopene intermediate 3-methyl-4,4-dialkoxy-1-butaldehyde. The preparation method comprises the following steps: (1) reacting 2-methyl-3,3-dialkoxy-1-halopropane with magnesium powder in the solvent of anhydrous tetrahydrofuran at a temperature of 45˜65° C. to generate a mixture of Grignard reagents under the protection of an inert gas; and (2) adding N,N-disubstituted carboxamide to the mixture of Grignard reagents and reacting at a temperature of 10° C.˜35° C. to obtain 3-methyl-4,4-dialkoxy-1-butaldehyde. The process route of the present invention is simple and direct, the operation is easy, the conditions are mild and the yield is good, and thus the invention has commercial value. | 12-04-2014 |
