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| Number | Title | Issue Date |
| 8168833 | Schwartz reagents: methods of in situ generation and use Embodiments of the invention provide a method of using Schwartz Reagent, Cp2Zr(H)Cl, without accumulating or isolating it. Methods provide mixtures of Cp2ZrCl2, reductants that selectively reduce Cp2ZrCl2, and s... | 05/01/2012 |
| 7851659 | Method for producing benzaldehyde compound A method is provided for producing a benzaldehyde compound represented by the formula (2): wherein Q1 and Q2 represent a hydrogen atom etc., including the step of reacting a compound represented by the... | 12/14/2010 |
| 7790931 | Process for preparing tetrafluorobenzene carbaldehyde alkyl acetal A process for preparing tetrafluorobenzene carbaldehyde alkyl acetal represented by the following formula (II), comprising reducing tetrafluorocyanobenzene represented by the following formula (I) with a metal catalyst containing a platinum group metal in the presen... | 09/07/2010 |
| 7456323 | 1,3-bis(3-formyl-4-hydroxyphenyl)adamantanes and polynuclear polyphenols derived therefrom A new 1,3-bis(3-formyl-4-hydroxyphenyl)adamantane, which provides a material offering excellent properties such as heat resistance and mechanical strength for use as an intermediate material for adamantanebisphenol derivatives or use in photosensitive resist materia... | 11/25/2008 |
| 7166554 | Photocatalyst To provide a photocatalyst having a photocatalytic activity far higher than that of flavin, and being excellent in stability as a catalyst. A photocatalyst comprising a flavin-rare earth metal ion complex. ... | 01/23/2007 |
| 7025899 | Concentrated solutions of oxime metal extractants and method of formulating extractant compositions therefrom The preparation of concentrated solutions of oxime metal extractants, such as aldoximes and ketoximes, or mixtures of aldoxime and ketoxime, and the use thereof in formulating or preparing extraction reagent compositions for use in an extractant organic phase in a p... | 04/11/2006 |
| 6903239 | Fluorinated benzaldehydes The present invention relates to fluorinated benzaldehydes, to a process for preparing them and also to the use of the fluorinated benzaldehydes for preparing active ingredients, especially in medicaments and agrochemicals. ... | 06/07/2005 |
| 6797844 | Process for producing phthalaldehyde A process for producing a phthalaldehyde which comprises reacting at least one compound selected between o-xylylene glycol and o-xylylene oxide with nitric acid. The nitric acid is used in an amount of about 0.2 to 20 mol per mol of the compound selected between o-x... | 09/28/2004 |
| 6790964 | Process for the preparation of 7-azabicyclo[4.1.0]hept-3-ene-3-carboxylic acid esters The present invention provides a method of producing 7-azabicyclo[4.1.0]hept-3-ene-3-carboxylic acid ester (VII) economically, industrially advantageously and efficiently in a large amount. The present invention relates to a production method of compound (VII), whic... | 09/14/2004 |
| 6777579 | Hydroformylation process A hydroformylation process is provided that involves reacting a compound having at least one olefinic carbon-to-carbon bond with hydrogen and carbon monoxide in the presence of a cobalt catalyst and a sulfur-containing additive which suppresses the formation of coba... | 08/17/2004 |
| 6720458 | Photooxidation catalyst and production process for aldehyde derivatives The present invention relates to a catalyst useful for a photooxidation reaction and also relates to a novel process for producing aldehydes, particularly aromatic aldehydes, which are useful as an intermediate for the production of agrochemical and medical preparat... | 04/13/2004 |
| 6624336 | Process for producing tetrafluorobenzenemethanols The present invention relates to a process by a series of reactions using tetrafluorocyanobenzens as material for producing tetrafluorobenzenemethanols, tetrafluorobenzenecarbaldehyde dialkylacetals and tetrafluorobenzenecarbaldehydes in a high purity and... | 09/23/2003 |
| 6608229 | Oxidation of polysaccharides with nitroxyls A simplified process for oxidizing starch and other polysaccharides in an aqueous solution or suspension using hypochlorite in the presence of a catalytic amount of a nitroxyl compound is described. The oxidation is process is bromide-free and is carried ... | 08/19/2003 |
| 6596909 | Adsorption of aldehyde with adsorbent containing zeolite The present invention provides the adsorbent which adsorbs the aldehyde efficiently for a long period. The present invention also includes an adsorption device, an article and a method using the same. The adsorbent of the invention comprises a zeolite, wh... | 07/22/2003 |
| 6518419 | Process for selective oxidation of primary alcohols Primary alcohols, especially in carbohydrates, can be selectively oxidized to aldehydes and carboxylic acids in a low-halogen process by using a peracid in the presence of a catalytic amount of a di-tertiary-alkyl nitroxyl (TEMPO) and a catalytic amount o... | 02/11/2003 |
| 6482991 | Method and apparatus for the preparation of aldehydes A method and an apparatus for producing aromatic aldehydes, including benzaldehyde and metatolualdehyde wherein the reaction occurs in the vapor phase. Raw materials and a source of oxygen are fed into a tube reactor. The raw materials may be in a liquid ... | 11/19/2002 |
| 6201156 | Method for production of aldehydes An ether of the following formula (2): ##STR1## (wherein Ra is a hydrogen atom, a hydrocarbon group or a heterocyclic group, Rb is a hydrogen atom, a hydroxyl group or a substituted oxy group, and Rc is a hydrocarbon group... | 03/13/2001 |
| 6133409 | Process for the solid phase synthesis of aldehyde, ketone, oxime, amine, hydroxamic acid and ଲ-unsaturated carboxylic acid and aldehyde compounds This invention is directed to a process for the solid phase synthesis of aldehyde, ketone, oxime, amine, hydroxamic acid and ,ଲ-unsaturated carboxylic acid and aldehyde compounds and to polymeric hydroxylamine resin compounds useful therefor.... | 10/17/2000 |
| 5861286 | Biochemical process for preparing aromatic substances The present invention relates to a process for the preparation of aromatic substances having formula (I), characterized in that a substrate having formula (II) is subjected to an oxydation in the presence of at least one protein and at least one metal ion... | 01/19/1999 |
| 5672765 | Process for the preparation of aromatic fluorinated compounds and novel diamides Aromatic, ring-fluorinated compounds are prepared by reaction of corresponding chlorine compounds or bromine compounds with alkali metal fluorides using a diamide as solvent. Most of the diamides which can be used are novel compounds.... | 09/30/1997 |
| 5659084 | Processes and intermediates for the preparation of 2-substituted benzaldehydes Processes for preparing 2-substituted benzaldehydes of general formula (I), wherein: R1 is CH2 CH2 --(L1)p --(CH2)q --(L2)r --CH2 --(T)2 --... | 08/19/1997 |
| 5599988 | Large scale preparation of 2,4-dihydroxybenzaldehyde using a variation of the Vilsmeierhaack reaction and isolated intermediates A novel process for producing chiral hydroxylamines for use as intermediates to make chiral hydroxyureas, which process comprises a tandem condensation-cyclization reaction between a dimethylsulfoxoniurn methylide and an appropriately substituted nitrone ... | 02/04/1997 |
| 5471004 | Process for producing ,ଲ-unsaturated aldehydes The present invention relates to a process for producing an ,ଲ-unsaturated aldehyde which comprises subjecting an allyl-hexamethylenetetraammonium derivative to hydrolysis in water and an organic solvent homogeneously immiscible with water. T... | 11/28/1995 |
| 5457239 | Process for formylation of aromatic compounds A process for the preparation of a formylated aromatic compound comprising contacting an aromatic compound with (i) a halogenated compound in the presence of a Lewis acid, and (ii) a base, is described. The subject process provides an efficient and effect... | 10/10/1995 |
| 5434302 | Method for the preparation of optically active 2-aryl alkyl aldehydes and formation of 2-aryl-alkanoic acids therefrom The present process is directed to preparing optically active 2-aryl alkyl aldehydes by various processes through the use of an optically active amine, (-)-2'-amino-3-phenyl propane. The aldehyde formed can then be oxidized to produce the corresponding ac... | 07/18/1995 |
| 5382699 | Method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde A method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde by reacting 4-hydroxy-3-methoxy-5-nitrobenzaldehyde with a strong nucleophilic agent which may be created by reacting an aromatic mercapto compound with a strong organic or inorganic alkali... | 01/17/1995 |
| 5336811 | Process for the preparation of aldehydes A process for the preparation of an aldehyde by reacting the corresponding aryl methanol with a stable free radical nitroxide in the presence of a NOx -generating compound at a temperature in the range of from about 0° C. to about 100° C. and... | 08/09/1994 |
| 5258544 | Synthesis of aldehydes useful in the preparations of HMG-CoA reductase inhibitors Disclosed is a process for the preparation of 2-aryl-1-cyclohexene-1-carboxaldehydes from 1-arylcyclohexenes which are intermediates for trans-6-[(2-arylsubstituted cycloalkenyl and substituted cycloalkyl)alkenyl and alkyl]-3,4,5,6-tetrahydro-2H-pyran-2-o... | 11/02/1993 |
| 5202497 | Process for preparing unsaturated aldehydes The invention relates to a process for preparing unsaturated aldehydes and their enamines by the oxidation of allylic tertiary amines in the presence of an alkyl hydroperoxide and a vanadium-based catalyst.... | 04/13/1993 |
| 5169958 | Preparation of ,ଲ-unsaturated carbonyl compounds A process for the preparation of ,ଲ-unsaturated carbonyl compounds of the formula I ##STR1## where R1 is hydrogen, C1 -C10 -alkyl, C1 -C10 -alkoxy or aryloxy, R2 is aryl w... | 12/08/1992 |
| 5162577 | Process for lithiation of 1,3-bis(trifluoromethyl)benzene A novel process for the lithiation of 1,3-bis(trifluoro-methyl)benzene in a solvent is described, said process comprising carrying out the lithiation with the lithium salt of an amine of the general formula R1 R2 NH ... | 11/10/1992 |
| 5155280 | Process for the oxidation of alcohols to aldehydes A process for the preparation of an aldehyde which comprises reacting the corresponding alkanol with a solubilized stable free radical nitroxide having the formula: ##STR1## wherein each of R1, R2, R3 and R4 | 10/13/1992 |
| 5155279 | Process for the oxidation of alcohols to aldehydes A process for the preparation of an aldehyde which comprises reacting the corresponding alkanol with a solubilized stable free radical nitroxide having the formula: ##STR1## wherein each of R1, R2, R3 and R4 | 10/13/1992 |
| 5155277 | Process for converting tertiary amine N-oxides to aldehydes A process for converting tertiary amine N-oxides to aldehydes by reacting tertiary amine N-oxides in the presence of a catalytic quantity of a vanadium containing compound.... | 10/13/1992 |
| 5149882 | Purification of 2-chloro-5-nitrobenzaldehyde or acetals thereof 2-chloro-5-nitrobenzaldehyde or an acetal thereof is isolated from a mixture of isomers thereof at a temperature of from -10° to +140° C., by suspending the mixture of isomers in a solvent or solvent mixture.... | 09/22/1992 |
| 5124487 | Catalytic reduction of nitriles to aldehydes p-Trifluoromethyl benzaldehydes are prepared by the catalytic reduction reaction of p-trifluoromethyl benzonitriles with hydrogen in an aqueous formic acid media in the presence of a nickel/aluminum alloy catalyst.... | 06/23/1992 |
| 5082976 | Process for the preparation of benzaldehydes Benzaldehydes of the formula ##STR1## can be obtained by reaction of substituted ଲ-amino-styrenes of the formula ##STR2## in which R1, R2, R3, R4, R5, R8, R9, ... | 01/21/1992 |
| 4845305 | Process for the preparation of isophthaladehyde This invention presents a method for the preparation of isophthalaldehyde in an all-aqueous solution using m-xylenediamine, hexamethylenetetramine, and HCl as the only reactants. Such a process permits the preparation of high yield of a high purity produc... | 07/04/1989 |
| 4766251 | Process for the preparation of ethynylbenzaldehydes A multi-step process for the preparation of ethynylbenzaldehydes from bromo- or iodobenzaldehydes is disclosed. The arylhalogen is replaced with a protected ethynyl compound which is subsequently cleaved by base to form the arylacetylene. The aldehydic fu... | 08/23/1988 |
| 4647446 | Rapid brain scanning radiopharmaceutical A method for detecting the blood flow in animals, particularly in the brain, is provided wherein a detectable amount of a novel radioactive compound of the formula I is administered to one animal: ##STR1## wherein R1 and R2 are ... | 03/03/1987 |
