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| Number | Title | Issue Date |
| 8394993 | Process for the preparation of pharmaceutical intermediates The invention relates to a process for the preparation of cyclopropyl benzyl ketone compounds of formula (II) wherein R1 represents fluorine or chlorine atom or C1-4 alkoxy group, by the reaction of a Grignard reagent, obtained from the reactio... | 03/12/2013 |
| 8269047 | Synthesis of alpha-halo enones and enals A method for preparing an α-halo enal or enone from an unprotected propargyl alcohol and an electrophilic halogen source catalyzed by the combination of a gold catalyst complex and a metal co-catalyst complex is disclosed. The method can be further enhanced by addi... | 09/18/2012 |
| 7365939 | Dynamic-pressure bearing device and disk drive An ionic liquid is utilized as the dynamic-pressure fluid charged inside a bearing space formed in the gap where an axial bushing (axial component) [21] and a bearing sleeve (bearing component) [13] oppose. Designing a dynamic-pressure bearing device i... | 04/29/2008 |
| 7332632 | Method for producing aldehyde compound or ketone compound by using microreactor The method for producing an aldehyde or ketone compound from a corresponding primary or secondary alcohol at relatively high temperature within a short time with a high yield including a step (1) of reacting a sulfoxide compound with an activating agent to produce a... | 02/19/2008 |
| 7314962 | Alkylation of aromatic compounds The present invention relates to the synthesis of alkylated aromatic compounds using ionic liquids as the solvent. Alkylated aromatic compounds are synthesized by reacting an aromatic compound with a monoolefin in the presence of an acid catalyst. ... | 01/01/2008 |
| 7262328 | Method for the production of aldehydes and ketones by oxidizing primary and secondary alcohols with alkylphosphonic acid anhydrides The invention relates to a method for the production of a.) aldehydes of formula (II): R1—CHO and b.) aldehydes of formula (III): R1—C(O)—R2 by reacting a.) primary alcohols (R1CH2—OH) or b.) secondary a... | 08/28/2007 |
| 7259218 | Processes for making temporary wet strength additives Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer comprising the homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strengt... | 08/21/2007 |
| 7238832 | Production method of a coupling compound There is provided a method for producing a coupling compound of formula (1): (Y—)(n−1)R1—R2—(R1)(n′−1) (1) wherein R1, R2 n and n′ are as defined belo... | 07/03/2007 |
| 7235699 | Alkoxy-substituted indanes and the production thereof The present invention relates to alkoxy-substituted indanes, their preparation and use and to the preparation and use of the corresponding alkoxy-substituted indanones. ... | 06/26/2007 |
| 7208634 | Oxidation method of primary or secondary alcohol A method for preparing an aldehyde or ketone by oxidizing a primary or secondary alcohol in the presence of a nitroxyl radical compound and a co-oxidant in an organic solvent, which process is characterized in using an organic N-bromoamide compound or a combination ... | 04/24/2007 |
| 7183421 | Processes for producing oxide with higher oxidation than alcohol The present invention provides a process for producing an oxide from an alcohol compound, the process comprising the steps of causing silica gel to carry the alcohol compound thereon and an oxidative catalyst thereon, and oxidizing the alcohol compound in the presen... | 02/27/2007 |
| 7122663 | Stable free nitroxyl radicals as oxidation catalysts and process for oxidation The instant invention relates to stable free nitroxyl radicals of formula (I) wherein at least one of the substituents R is —O. and the others are hydrogen or OH; ... | 10/17/2006 |
| 7119235 | Process utilizing zeolites as catalysts/catalyst precursors According to one aspect of the invention, there is provided the use of an organic ionic liquid in a zeolite-catalysed process, for example an acylation, alkylation, isomerisation or hydrocracking process in which zeolites act as catalysts or catalyst precursors, esp... | 10/10/2006 |
| 7115782 | Process for producing aromatic compounds by Friedel-Crafts reaction There is provided a process for producing an aromatic compound by Friedel-Crafts reaction product, which comprises reacting an aromatic compound with an ester compound in the presence of a heteropolyacid-containing solid acid catalyst. ... | 10/03/2006 |
| 7109379 | Method for producing carbonyl compound An oily solution of water-insoluble aliphatic alcohol is allowed to react with an aqueous hydrogen peroxide solution in the presence of a catalyst containing a metal compound belonging to Group 8 to 10 of the Periodic Table in a heterogeneous solution system. As a r... | 09/19/2006 |
| 7087791 | Catalysed acylation of alkylated benzene derivatives An ecofriendly process for acylation of an alkylated benzene derivative has increased selectively towards para position and comprises a step of reacting the alkylated benzene derivative with an acylating agent in the presence of nitrobenzene, dichlorobenze, dimethyl... | 08/08/2006 |
| 7057079 | Method of synthesizing alkenone compounds A method of producing a halogen alkenone ether by attaching carboxylic acid halogenides or carboxylic acid anhydrides to a vinyl ether. According to the invention the method is carried out in the presence of an onium salt of a carbonic acid which can be regenerated.... | 06/06/2006 |
| 7030279 | Process for transition metal free catalytic aerobic oxidation of alcohols under mild conditions using stable free nitroxyl radicals An alcohol can be oxidized by a process in which a primary or secondary alcohol are reacted with an oxygen-containing gas in the presence of a catalyst composition containing (i) a stable free nitroxyl radical derivative, (ii) a nitrate source, (iii) a bromide sourc... | 04/18/2006 |
| 7002047 | Biocatalytic synthesis of quinic acid and conversion to hydroquinone A bioengineered synthesis scheme for the production of quinic acid from a carbon source is provided. Methods of producing quinic acid from a carbon source based on the synthesis scheme as well as conversion of quinic acid to hydroquinone are also provided. ... | 02/21/2006 |
| 6984760 | Acylation of aromatic compounds This invention particularly relates to a process for the acylation of aromatic compounds by an acylating agent for preparing corresponding acylated aromatic compounds, using a solid catalyst. ... | 01/10/2006 |
| 6969778 | DDQ mediated one step dimerization of β-asarone or β-asarone rich Acorus calamus oil in the formation of novel neolignan The present invention relates to neolignan (NEOLASA-I) 3-ethyl-2-methyl-3-(2″,4″,5″-trimethoxy-phenyl-1-(2′,4′,5′-trimethoxy)phenyl-1-propene and a process for the preparation of high purity, higher yield neolignan, α-asarone, 2,4,5-trimethoxy-phenyl pr... | 11/29/2005 |
| 6967252 | Flame retarding compounds Novel flame retarding compounds that comprise at least one sterically hindered nitroxyl, hydroxylamine or hydrocarbyloxyamine moiety and at least one conventional organohalogen or organophosphorus flame retardant moiety, represented by | 11/22/2005 |
| 6939479 | Cycloalkanone derivatives Described herein are compounds of formula I wherein M1, M2 and M3 have the meanings recited in the disclosure, liquid crystalline mixtures and polymers containing them, and the use of t... | 09/06/2005 |
| 6919485 | Benzophenones, the production thereof and their use for controlling plant pathogenic fungi The invention relates to benzophenones of formula (I), in which the substituents have the following meanings: X represents halogen; R1 represents hydrogen, halogen, C1-C6 alkyl, halo-C1-C2 alkyl, C1-C... | 07/19/2005 |
| 6867331 | Method for producing deoxybenzoins The invention describes a process for the preparation of 1,2-diarylethanones by reaction of an arylacetonitrile and an aromatic compound and hydrolysis of the ketimine compound formed, where the solvent used for the reaction is at least one dialkyl ether of a mono- ... | 03/15/2005 |
| 6849768 | Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity. ... | 02/01/2005 |
| 6800785 | Process for the synthesis of estrogen receptor modulators The present invention relates to processes for the synthesis of intermediates useful for the synthesis of estrogen receptor modulators. The process includes new methods for annelating 5-, 6- and 7-membered cycloalkenones onto an indanone. ... | 10/05/2004 |
| 6797830 | Process for producing oxide with higher oxidation than alcohol The present invention provides a process for producing an oxide from an alcohol compound, the process comprising the steps of causing silica gel to carry the alcohol compound thereon and an oxidative catalyst thereon, and oxidizing the alcohol compound in the presen... | 09/28/2004 |
| 6790997 | Preparation of carbonyl compounds from alcohols The invention relates to a process for the preparation of carbonyl compounds by the oxidation of alcohols in the presence of osmium compounds as catalysts in water or a solvent mixture containing water. ... | 09/14/2004 |
| 6750371 | Process for the oxidation of alcohols to aldehydes and ketones in the presence of nitroxyl compounds as catalysts An alcohol is oxidized to an aldehyde or a ketone in the presence of a nitroxyl compound as catalyst, wherein the alcohol to be oxidized is contained in an organic liquid phase, and is reacted in the presence of a nitroxyl compound with an aqueous phase comprising a... | 06/15/2004 |
| 6740785 | Catalytic oxidation of organic substrates by transition metal complexes in organic solvent media expanded by supercritical or subcritical carbon dioxide Improved oxidation methods are provided wherein a reaction mixture comprising a substrate to be oxidized (e.g., phenols, alkenes) and an oxidation catalyst (typically dispersed in an organic solvent system) is supplemented with a compressed gas which expands the rea... | 05/25/2004 |
| 6730814 | Clay based catalytic process for the preparation of acylated aromatic ethers This invention relates to a process for the preparation of acylated aromatic ethers, in particular the acylation of anisole (methoxybenzene) and veratrole (1,2-dimethoxybenzene) for the preparation of corresponding acylated aromatic ether, namely, p-methoxyacetophen... | 05/04/2004 |
| 6703527 | Method for oxidation of allyl alcohol Allyl alcohols are converted into corresponding aldehydes or ketones in a high yield under a mild condition by using an inexpensive aluminum alkoxide as an Oppenauer oxidation catalyst and a hydride acceptor. Thus, there is provided an industrially useful... | 03/09/2004 |
| 6670509 | Conversion of organic substrates to oxygenates or olefins using a bicyclo imide promoter A process for oxygenating organic substrates such as aliphatic hydrocarbons has been developed. The process involves contacting the organic substrate with oxygen in the presence of a bicyclo imide promoter and a metal co-catalyst. The process is preferabl... | 12/30/2003 |
| 6667422 | Process for the preparation of -haloketones A process for preparing an -haloketone of the formula (1) ##STR1## where R1 is an optionally heteroatom-containing and optionally substituted hydrocarbon radical, R2 is a hydrogen, alkyl, aralkyl or aryl radical, and X is a halogen... | 12/23/2003 |
| 6660860 | Process for the selective oxidation of alcohols using readily removable nitroxyl radicals The invention relates to a process for the selective oxidation of alcohols to ketones or to aldehydes by means of an alkali hypohalite under alkaline conditions, which comprises carrying out the oxidation in the presence of a heterogeneous oxidation catal... | 12/09/2003 |
| 6600077 | Biocatalytic synthesis of quinic acid and conversion to hydroquinone A bioengineered synthesis scheme for the production of quinic acid from a carbon source is provided. Methods of producing quinic acid from a carbon source based on the synthesis scheme as well as conversion of quinic acid to hydroquinone are also provided... | 07/29/2003 |
| 6590127 | Process for the preparation of pharmacologically active -asarone from toxic ଲ-asarone rich acorus calamus oil The present invention relates to a process for the preparation of high purity and yield -asarone, trans 2,4,5-trimethoxy cinnamaldehyde, 2,4,5-trimethoxy-phenyl propionone, from ଲ-asarone or ଲ-asarone rich Acorus calamus oil containing ... | 07/08/2003 |
| 6586635 | Process for the preparation of unsaturated ketones A process for the preparation of ଲ,γ,δ-unsaturated ketones and/or ,ଲ,γ,δ-unsaturated ketones by the reaction of an unsaturated alcohol with an enol ether or mixture of enol ethers, with formation of ketals as a by-product, at temper... | 07/01/2003 |
| 6525226 | Process for preparation of substituted aromatic compound employing friedel-crafts reaction using a reusable basic anionic clay catalyst A process for Friedel-Crafts type liquid-phase alkylation or acylation of an aromatic compound using a hydrotalcite-type basic anionic clay catalyst represented by a formula: [(M2+)1-x (M3+)x (OH)2 ]x... | 02/25/2003 |
