Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7166754 | Methods and compositions for enantioselective oxidation reactions This invention provides methods and catalyst systems for catalyzing enantioselective oxidation reactions, including cyclization reactions and enantioselective oxidation reactions of secondary alcohols and other similarly reactive organic substrates. Use of the metho... | 01/23/2007 |
| 7148386 | Processes for preparing benzoquinones and hydroquinones A process for the preparation of hydroquinone compounds comprising, reacting an aromatic hydroxy compound with an oxidizing agent in a biphasic solvent system. The reaction is carried out in the presence of a transition metal hydroxy phosphate catalyst to produce th... | 12/12/2006 |
| 7094925 | Oxidation of alkyl-aromatic compounds A process for the oxidation of an alkyl-aromatic compound, wherein the aromatic compound is admixed with an oxidising agent or sulfur compound in the presence of an ionic liquid is described. In this process, air, dioxygen, peroxide, superoxide, any other form of ac... | 08/22/2006 |
| 7038068 | Method for liquid/liquid extraction of molecular weight fractions of perfluorinated polyethers A liquid/liquid extraction method is used for separating a perfluorinated polyether (PFPE) into two molecular-weight distributions using an alcohol or cyclic ether as one solvent and a fluorinated solvent as the other solvent. The more polar alcohol or cyclic ether ... | 05/02/2006 |
| 6974888 | Process for preparing organic hydroperoxide containing product Process for preparing alkylaryl hydroperoxide containing product, which process comprises: (a) oxidation of an alkylaryl compound to obtain reaction product containing alkylaryl hydroperoxide, (b) contacting with water at least part of the ... | 12/13/2005 |
| 6849771 | Process The invention relates to a process for converting 1-phenylethanol into styrene, which process involves: (1) contacting a feed containing 1-phenylethanol, organic acid and 2-phenylethanol with a catalyst to obtain a product containi... | 02/01/2005 |
| 6743952 | Selective liquid phase air oxidation of toluene catalysed by composite catalytic system The present invention provides an improved process for the production of benzaldehyde with 40-50% selectivity by the catalytic liquid phase air oxidation of toluene using a composite catalytic system comprising salts of iron, cobalt, manganese, molybdenum or nickel ... | 06/01/2004 |
| 6700005 | Process for preparing organic hydroperoxide containing product Process for preparing alkylaryl hydroperoxide containing product, which process comprises: (a) oxidation of an alkylaryl compound to obtain reaction product containing alkylaryl hydroperoxide, (b) contacting with water at least part of the alkylaryl hy... | 03/02/2004 |
| 6590129 | Method for preparing aromatic carboxylic acids, aromatic aldehydes, and aromatic alcohols An aromatic carboxylic acid, aromatic aldehyde, and aromatic alcohol are simultaneously and efficiently prepared by liquid phase oxidizing an aromatic compound represented by formula (I) with a gas containing molecular oxygen, in a presence of a catalyst ... | 07/08/2003 |
| 6437176 | Method for preparing aromatic carboxylic acids, aromatic aldehydes, and aromatic alcohols An aromatic carboxylic acid, aromatic aldehyde, and aromatic alcohol are simultaneously and efficiently prepared by liquid phase oxidizing an aromatic compound represented by formula (I) with a gas containing molecular oxygen, in a presence of a catalyst ... | 08/20/2002 |
| 6281382 | Palladium phenanthroline acetate catalyst and a method of oxidizing side-chains of alkylbenzenes with catalyst The method of oxidizing the alkyl groups of alkylbenzenes using palladium phenanthroline acetate or a palladium acetate with modified phenanthroline ligand catalyst. The palladium acetate catalyst with modified phenanthroline has the following formula: ... | 08/28/2001 |
| 6271425 | Process for producing alcohols A novel process for producing alcohols, characterized by reacting an organic halide represented by the formula R--X (wherein R means an organic residue and X means a halogen atom) with oxygen molecules in the presence of an organotin compound and a reduci... | 08/07/2001 |
| 6242643 | Method for preparing aromatic carboxylic acids, aromatic aldehydes, and aromatic alcohols An aromatic carboxylic acid, aromatic aldehyde, and aromatic alcohol are simultaneously and efficiently prepared by liquid phase oxidizing an aromatic compound represented by formula (I) with a gas containing molecular oxygen, in a presence of a catalyst ... | 06/05/2001 |
| 6218581 | Process of producing optically active alcohol The present invention relates to a process of producing optically active alcohol having high optical purity by performing an enzyme conversion reaction on a raw material serving as the substrate, examples of which include racemic alcohol, ketone and the a... | 04/17/2001 |
| 6002037 | Chiral organoalanes and their organic derivatives via zirconium-catalyzed asymmetric carboalumination of terminal alkenes The present invention describes the Zr-catalyzed asymmetric carboalumination of alkenes to produce chiral alkylalanes that can be converted to various chiral organic compounds, such as isoalkyl alcohols, in highly enantiomeric excess. More particularly, t... | 12/14/1999 |
| 5723677 | Method for hydroperoxide decomposition using novel porphyrins synthesized from dipyrromethanes and aldehydes The invention comprises a method for the oxidation of alkanes to alcohols and for decomposition of hydroperoxides to alcohols utilizing new compositions of matter, which are metal complexes of porphyrins. Preferred complexes have hydrogen, haloalkyl or ha... | 03/03/1998 |
| 5672778 | Process for increased yields of oxygenated products in two-step oxidation of hydrocarbons The invention comprises a method for the catalytic conversion of alkanes and alkylhydroperoxides to oxygenates, particularly alcohols, comprising the oxidation of alkanes to yield alkylhydroperoxides, alcohols, other reaction products and unreacted alkane... | 09/30/1997 |
| 5639922 | Process for treatment of hydroperoxide mixture A process is described for the selective decomposition of aromatic primary hydroperoxides by contacting a hydroperoxide mixture containing aromatic primary hydroperoxides and aromatic tertiary hydroperoxides obtained by oxidation of alkylaromatic compound... | 06/17/1997 |
| 5550301 | Dried catalytic systems for decomposition of organic hydroperoxides Organic hydroperoxides are decomposed by drying a reaction mixture containing the organic hydroperoxide and an organic solvent such that said dried reaction mixture comprises approximately 1 weight percent or less of water and contacting the dried reactio... | 08/27/1996 |
| 5489716 | Reactions catalyzed by haloporphyrins The invention provides novel methods for the oxidation of hydrocarbons with oxygen-containing gas to form hydroxy-group containing compounds and for the decomposition of hydroperoxides to form hydroxygroup containing compounds. The catalysts used in the m... | 02/06/1996 |
| 5426237 | Process for producing alcohols and ketones The present invention provides a process for the oxidation of straight-chain, branched-chain or cyclic alkanes of 1-20 carbon atoms and benzene derivatives represented by the following formulas (1)-(2). The alcohols and ketones obtained by the oxidation o... | 06/20/1995 |
| 5395988 | Metal-ligand catalyzed decomposition of organic hydroperoxides Organic hydroperoxides are decomposed by drying a reaction mixture containing the organic hydroperoxide and an organic solvent and contacting the dried reaction mixture with a metal organic ligand catalyst under hydroperoxide decomposition conditions. An ... | 03/07/1995 |
| 5345008 | Decomposition of organic hydroperoxides with nitrated porphyrin complexes Hydroperoxides are decomposed by contact with metalloporphyrin coordination complex catalysts in which hydrogen in the porphyrin molecule has been substituted with at least one nitro group and may be further substituted with other electron-withdrawing ele... | 09/06/1994 |
| 5233092 | Diphosphonate compounds, their preparation and application The invention relates to a new compound of the formular (1): ##STR1## wherein m1 =0, 1 or 2, m2 =0, 1 or 2, m1 and m2 are not to be simultaneously 0 or simultaneously 2; n1 =2-m1, n | 08/03/1993 |
| 5206424 | Decomposition of tertiary butyl hydroperoxide using cycloalkenyl iron catalyst A method for preparing tertiary butyl alcohol wherein a solution of a tertiary butyl hydroperoxide in tertiary butyl alcohol is charged to a hydroperoxide decomposition reaction zone containing a catalytically effective amount of a soluble iron hydroperox... | 04/27/1993 |
| 5171868 | Epoxidate treatment Caustic requirements are substantially reduced in the treatment of epoxidate from olefin/ethylbenzene hydroperoxide epoxidation by treating the epoxidate products with an aqueous stream comprised of alkali metal carbonate, separating a phenol-containing 1... | 12/15/1992 |
| 5160496 | Hydroxylation of phenols/phenol ethers The phenols and phenol ethers are economically and efficiently hydroxylated using hydrogen peroxide, in the presence of a catalytically effective amount of a bridged clay, e.g., a zeolite or smectite.... | 11/03/1992 |
| 5149880 | Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxgen are disclosed. Processes whereby activated hydrogen peroxide or dioxygen are used to transform various organic substrates ar... | 09/22/1992 |
| 5126494 | Methods for catalytic asymmetric dihydroxylation of olefins Osmium-catalyzed methods of addition to an olefin are discussed. In the method of asymmetric dihydroxylation of the present invention, an olefin, a chiral ligand, an organic solvent, water, an oxidant and an osmium-containing compound are combined. In the... | 06/30/1992 |
| 5120886 | Decomposition of organic hydroperoxides Hydroperoxides are decomposed by contact with metal ligand catalysts of coordination complexes in which hydrogen in the ligand molecule has been substituted with electron-withdrawing elements or groups, for example halogen or nitro or cyano groups. Prefer... | 06/09/1992 |
| 5041680 | Production of hydrogen peroxide Hydrogen peroxide and organic active oxygen-containing compounds in an organic stream, such as that from a methyl benzyl alcohol oxidate after hydrogen peroxide separation, are selectively decomposed by non-catalytic thermal treatment at 150°-180° C. fo... | 08/20/1991 |
| 5023383 | Method for producing aromatic alcohol Aromatic alcohol is produced by reducing aromatic hydroperoxide with hydrogen in a liquid phase, using a Pt catalyst solely or a catalyst containing Pt and at least one element selected from the group consisting Pb, Sn, Cu, As, Sb, In, Se and Bi in a fixe... | 06/11/1991 |
| 5021607 | Oxidation of saturated hydrocarbon chains Saturated hydrocarbon chains are oxidized using a titanium containing silicalite catalyst having an infra red absorption band around 950 cm-1 preferably in solutions, the chains may be alkanes or alkyl groups of alkyl cyclic compounds.... | 06/04/1991 |
| 4994625 | Production of hydrogen peroxide Hydrogen peroxide and organic active oxygen-containing compounds in an organic stream, such as that from a methyl benzyl alcohol oxidate after hydrogen peroxide separation, are selectively decomposed by contact with an alumina catalyst, the organic active... | 02/19/1991 |
| 4970346 | Dicyano bis-(1,10-phenanthrolene)iron(II) catalyst useful for detergent range alcohols and ketones A process for the production of detergent range alcohols and ketones by reacting an alkane with a hydroperoxide in the presence of dicyano bis-(1,10-phenanthrolene)iron(II) is described. Preferred hydroperoxides include cumene hydroperoxide and tertiary b... | 11/13/1990 |
| 4943667 | Preparation of phenylethanols Phenylethanols of the formula ##STR1## where R is hydrogen, alkyl of from 1 to 4 carbon atoms, alkoxy of from 1 to 4 carbon atoms, fluorine, trifluoromethyl or trifluoromethoxy, are prepared by reacting epoxides of the formula ##STR2## wher... | 07/24/1990 |
| 4879416 | Preparation of bidentate ligands The process for preparing a bidentate ligand comprising the steps, (1) contacting with ozone under ozonolysis conditions a suspension in a hydroxylic reaction medium of phenanthrene or a phenanthrene derivative to form an ozonated intermediate, (2) contacting ... | 11/07/1989 |
| 4825007 | Oxidation process of aromatic compounds An aromatic compound selected from benzene and biphenyl compounds containing at least one isopropyl group is oxidized to convert at least one of the at least one isopropyl group into a 2-hydroxy-2-propyl group. The oxidation of the aromatic compound is ef... | 04/25/1989 |
| 4746757 | Process for producing (2-hydroxy-2-propyl)-naphthalene compounds Disclosed herein is a process for producing (2-hydroxy-2-propyl)naphthalene compounds, comprising oxidizing a naphthalene compound having isopropyl group(s) on the naphthalene ring in the presence of peroxodisulfate in a mixed solvent of water and an orga... | 05/24/1988 |
| 4551553 | Decomposition of hydroperoxides in the presence of homogeneous binary catalysts The process of decomposing a hydroperoxide by contacting the hydroperoxide with a catalytic quantity of a catalyst system comprised of chromium and ruthenium. The catalyst system is characterized by its high stability while exhibiting improved activity fo... | 11/05/1985 |
