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| Number | Title | Issue Date |
| 8106243 | Process for producing cyclohexylbenzene In a process for producing cyclohexylbenzene, benzene and hydrogen are contacted with a catalyst under hydroalkylation conditions to produce an effluent containing cyclohexylbenzene. The catalyst comprises a composite of a molecular sieve, an inorganic oxide differe... | 01/31/2012 |
| 8084648 | Process for producing cyclohexylbenzene In a process for producing cyclohexylbenzene, hydrogen and a liquid feed comprising benzene are introduced into a reaction zone and are contacted in the reaction zone under hydroalkylation conditions to produce cyclohexylbenzene. An effluent stream comprising cycloh... | 12/27/2011 |
| 7378557 | Methods for preparing isolongifolenone and its use in repelling arthropods A method for making isolongifolenone involving reaction (−)-isolongifolene with chromium hexacarbonyl and t-butyl hydroperoxide. Also the use of isolongifolenone to repel arthropods by treating an object or area with an arthropod repelling effective amount of isol... | 05/27/2008 |
| 7235698 | Enantioselective, catalytic allylation of ketones and olefins Compounds containing a substituted or unsubstituted allyl group directly bound to a chiral carbon atom are prepared enantioselectively. Starting reactants are either chiral or achiral, and may or may not contain an attached allyloxycarbonyl group as a substituent. C... | 06/26/2007 |
| 7214837 | Process for preparation of a mixture of alcohols and ketones by liquid phase oxidation of higher alkanes The present invention provides a process for the production of a mixture of alcohols and ketones by the liquid phase oxidation of higher alkanes using a catalyst system consisting of transition group metal such as palladium and support such as alumina, silica, carbo... | 05/08/2007 |
| 7196229 | Benzoylcyclohexenone derivatives The invention relates to benzoylcyclohexenone derivatives of general formula (I) wherein the variables R1 to R10 and n have the designation cited in claim 1. The invention also relates to the salts of the same and the use of said derivat... | 03/27/2007 |
| 7166750 | Process for the preparation of 5-[(4-chlorophenyl)methyl]-2,2-dimethylcyclopentanone 5-[(4-chlorophenyl)methyl]-2,2-dimethylcyclopentanone is produced by reacting 1-[(4-chlorophenyl)methyl]-3-methyl-2-oxocyclopentanecarboxylic acid methyl ester or 1-[(4-chlorophenyl)methyl]-3-methyl-2-oxocyclopentanecarboxylic acid... | 01/23/2007 |
| 7145041 | Method for producing saturated alcohols, ketones, aldehydes and carboxylic acids The invention relates to a method for catalytically oxidizing unsaturated hydrocarbons to form oxidation products, and to the production of saturated alcohols, ketones, aldehydes or carboxylic acids by subsequently hydrogenating the oxidation product. A compound of ... | 12/05/2006 |
| 7112699 | Process for the direct conversion of lactones into unsaturated ketones or aldehydes The present invention refers to a process for the preparation of unsaturated ketones or aldehydes by pyrolysis of a lactone, in the presence of a reducing agent such as molecular hydrogen or a carboxylic acid, and in the presence of a catalyst, optionally supported,... | 09/26/2006 |
| 6924397 | Process for the preparation of α-chloroketones from alkyl esters The present invention relates to a process for the preparation of α-chloroketones from readily available alkyl esters by the reaction of a sulfoxonium ylide on said alkyl esters to generate a keto sulfoxonium ylide that is in turn treated with anhydrous HCl. ... | 08/02/2005 |
| 6906108 | Extracts of vetiver oil as repellent and toxicant to ants, ticks, and cockroaches Extracts of vetiver oil were found to be significant repellents and toxicants of ants, ticks, and cockroaches. Nootkatone was shown to significantly decrease ant invasion and increase mortality in fire ants. Nootkatone is an effective repellent and toxicant of ants ... | 06/14/2005 |
| 6872854 | Complexes of metal salts of organic acids and beta-diketones and methods for producing same Metal salts of organic acids complexed with β-diketone compounds are multifunctional complexes useful in the formulation of stabilizers for halogenated resins. These complexes may be used jointly with other low toxicity intermediates, such as zinc or magnesium inte... | 03/29/2005 |
| 6861551 | Processes for the preparation of macrocyclic ketones Disclosed are a process of subjecting a diester of a long-chain dicarboxylic acid having 18 to 21 carbon atoms to intramolecular condensation in the presence of titanium tetrachloride or zirconium tetrachloride and a trialkylamine to form an α-alkoxycarbonylated ma... | 03/01/2005 |
| 6852893 | Method for oxidizing hydrocarbons The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R1 and R2 represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radica... | 02/08/2005 |
| 6828464 | Preparation of cyclopentenones The present invention provides a process for preparing 2-cyclopentenones of the general formula: where R1 to R4 are each hydrogen atoms or are alkyl or alkenyl radicals having from 1 to 12 carbon ... | 12/07/2004 |
| 6818796 | Method for preparing fluorinated ketones A subject of the present invention is a process for preparation of fluorinated ketones corresponding to general formula (I) R1—CO—R2 in which R1 and R2 are as defined in claim 1, characterized in that it consists of re... | 11/16/2004 |
| 6806390 | Hydroperoxide decomposition catalyst An improved catalytic process for decomposing alkyl or aromatic hydroperoxides is disclosed which utilizes a caalytic amount of a heterogeneous Au catalyst that has been treated with an organosilicon reagent. ... | 10/19/2004 |
| 6677490 | Method for producing alcohol/ketone mixtures The invention relates to a method for producing a mixture of alcohols/ketones by decomposing an alkyl hydroperoxide, particularly to a method for producing a cyclohexanol/cyclohexanone by decomposing cyclohexyl hydroperoxide in the presence of a heterogen... | 01/13/2004 |
| 6642418 | Processes for preparing intermediates The invention relates to processes for the preparation of compounds of formula (I), wherein R1 and R2 are as defined in the description. ##STR1##... | 11/04/2003 |
| 6639112 | Method for preparing ketones by pyrogenic reaction of aldehydes, alcohols, acids or esters The invention concerns a method for preparing ketones of formula (I) wherein A and B are as defined in claim 1, consisting of reacting at a temperature ranging between 250 and 500° C. a compound of formula (II): A--X with a compound of formula (III): B--... | 10/28/2003 |
| 6545185 | Preparation of ketones from aldehydes A method and apparatus for the production of ketones via a one-step synthesis from aldehydes. In the method of the invention, an aldehyde, a carboxylic acid, and a source of oxygen, such as water, are allowed to react in the vapor phase in a catalytic tub... | 04/08/2003 |
| 6500972 | Synthesis of TMBQ with transition metal-containing molecular sieve as catalysts A method of oxidizing trimethylphenol (TMP) to trimethylbenzoquinone (TMBQ) by various molecular sieves containing various transition metals. In this method, TMP, a molecular sieve containing a transition metal in its framework, an oxidant and a solvent a... | 12/31/2002 |
| 6469215 | Process for the production of an intermediate mixture of ଲ-isophorone epoxide and its isomer 4-hydroxyisophorone (HIP) A process for the production of an intermediate mixture of ଲ-isophorone epoxide and its isomer 4-hydroxyisophorone (HIP), comprising reacting ଲ-isophorone with an organic percarboxylic acid, in the form of its non-aqueous solution, in an inert... | 10/22/2002 |
| 6420609 | Process for the production of 2,2,6-trimethylcyclohexane-1,4-dione Process for the production of 2,2,6-trimethylcyclohexane-1,4-dione by epoxidation of ଲ-isophorone with organic percarboxylic acids at a water content below 5 wt.-% and subsequent isomerization of the mixture of ଲ-isophorone epoxide and hydroxy... | 07/16/2002 |
| 6417405 | Synthesis of cyclopentadiene or substituted cyclopentadiene compounds Substituted or unsubstituted cyclopentadienyl are prepared by reducing 4-ketocyclopentene to an alcohol, replacing the hydroxyl functionality with a leaving group and deprotonating the resulting product under base induced elimination conditions.... | 07/09/2002 |
| 6410795 | Process for base-promoted condensation reactions and base reagent therefor A method for the preparation of 1,3-diketones is disclosed wherein the method comprises the steps of: (A) mixing an alkali metal base with a hindered alcohol in an aromatic hydrocarbon solvent; (B) boiling the mixture and azeotropically distilling water formed... | 06/25/2002 |
| 6392099 | Method and apparatus for the preparation of ketones A method for continuously producing a ketone in a tube reactor at elevated weight hourly space velocities and in the presence of a catalyst from feed material comprised of a first carboxylic acid or aldehyde or their derivatives and a second carboxylic ac... | 05/21/2002 |
| 6339159 | Optically active -aminonitrile and process for producing -amino acid An aldehyde compound is reacted with an amino compound and hydrogen cyanate in the presence of a chiral zirconium catalyst obtained by mixing a zirconium alkoxide with an optically active binaphthol compound.... | 01/15/2002 |
| 6310256 | Synthesis of 4-ketocyclopentene compounds A process for forming 4-ketocyclopentene and substituted 4-ketocyclopentene compounds starting from the corresponding 1-carbohydrocarbyloxy-2-keto-4-hydroxy-5-cyclopentene by reduction followed by decarboxylation.... | 10/30/2001 |
| 6200786 | Process for the preparation of nootkatone by laccase catalysis A method of producing nootkatone by laccase catalyzed oxidation of valencene. Valencene and a composition having laccase activity are reacted in the presence of an oxygen source, at a valencene concentration greater than 0.1%, to form valencene hydroperox... | 03/13/2001 |
| 6143935 | Process for the preparation of 1,3-dicarbonyl compounds The condensation reaction of a ketone with either an ester or a carbonate to form, respectively, a 1,3-diketone or a ଲ-ketoester often affords poor results under the standard condensation reaction conditions. High yields and high purities of the des... | 11/07/2000 |
| 6087401 | Cyclopentenones, process for preparing the same, and the use thereof There is disclosed a method of manufacturing 4,5-dihydroxy-2-cyclopenten-1-one represented by the following formula [1] which is characterized in that at least one substance selected from the following (a), (b) and (c) is heated. (a): uronic acid or uroni... | 07/11/2000 |
| 6025527 | Trimethylcyclohexenylcyclopropyl ketones, process for producing same, and uses thereof in perfumery Described are trimethylcyclohexenylcyclopropyl ketones having the structure: ##STR1## wherein one of the dashed lines is a carbon--carbon double bond and the other of the dashed lines is a carbon--carbon single bond, uses thereof in augmenting, ... | 02/15/2000 |
| 5874636 | Process for the preparation of terpenic ketones The present invention relates to a process for the preparation of terpenic ketones, which comprises reacting a 1,3-butadiene derivative with a ଲ-keto ester followed by decarbalkoxylation of the product.... | 02/23/1999 |
| 5852200 | Cross-coupling of organic compounds using cuprous iodide Cross-coupling or addition reactions of organic compounds, including acid halides, allylic halides, and ,ଲ-unsaturated carbonyl containing compounds, with organozinc compounds may be readily and safely carried out in the presence of cuprous i... | 12/22/1998 |
| 5847226 | Process for the preparation of nootkatone A method for preparing nootkatone, nootkatol or mixtures thereof by oxidizing valencene, wherein the valencene is exposed to an oxygenated atmosphere in a suitable reaction medium and in the presence of an unsaturated fatty acid hydroperoxide, and the noo... | 12/08/1998 |
| 5808165 | ଲ-diketones, processes for making ଲ-diketones and use of ଲ-diketones as stabilizers for PVC The present invention is directed to compositions containing novel beta-diketones of formula (I) and formula (II), R1 COCH2 COR2 (I) R2 COCH2 COR2 ... | 09/15/1998 |
| 5763627 | Process for preparing cyclopropyl alkyl ketones and 4,5-dihydroalkyfurans The invention relates to a novel process for simultaneously preparing cyclopropyl alkyl ketones and 4,5-dihydroalkylfurans from 3-acyltetrahydrofuran-2-ones in the presence of a metal salt according to the scheme ##STR1## during the reaction, hi... | 06/09/1998 |
| 5672763 | Process for the preparation of 2-substituted cyclopentanones 2-Substituted cyclopentanones are prepared by reacting adipic ester with an alkoxide in the presence of an inert solvent, thus obtaining a salt of the cyclopentanone-2-carboxylic ester, alkylating this without isolation, thus obtaining a 2-alkyl-cyclopent... | 09/30/1997 |
| 5618982 | Catalytic C-alkylation of ketones Ketones having at least one hydrogen atom or ester group in the -position with respect to a ketonic carbonyl group thereof, for example cyclopentanone, 2-methylcyclopentanone and other substituted cyclopentanones, are effectively C- or -alky... | 04/08/1997 |
